prac1 Flashcards
describe simple Squamous epithelium
- flat, irregularly shaped, tightly-fitted cells in a mosaic like pattern with flattened centrally located nucleus
function of simple Squamous epithelium
diffusion and filtration
location of simple Squamous epithelium
pulmonary alveoli, kidneys, lining the inner walls of blood and lymphatic vessels (endothelium), form serous membranes that line the body cavities and its organs – pericardium, pleura, peritoneum
describe simple cuboidal epithelium
- composed of tightly fitted cube-shaped cells, with centrally positioned round nucelus
FUNCTION of simple cuboidal epithelium
secretion, filtration and absorption
LOCATION of simple cuboidal epithelium
found in many glands and glandular organs and ducts (e.g. surface of ovaries, ducts of salivary glands and pancreas)
describe simple columnar epithelium
- Composed of tall, columnar cells (height caries), tightly fitted, nucleus usually located close ot the basement membrane; goblet cells
- Non-ciliated (covered in microvilli to increase SA for absorption in intestine)
- Ciliated (covered in cilia to support beating of secondary oocyte through the uterine tube to the uterus)
what are the two types of simple columnar epithelium
ciliated
non-ciliated
what is non-ciliated simple columnar epithelium covered in and why
covered in microvilli to increase SA for absorption in intestine
what is ciliated simple columnar epithelium covered in and why
covered in cilia to support beating of secondary oocyte through the uterine tube to the uterus)
function of simple columnar epithelium
protection, lubrication, secretion and absorption
location of simple columnar epithelium
lining of intestine, uterine tubes, bronchioles
describe pseudo-stratified simple epithelium
- cells are of different heights with a variable position of the nucleus giving the appearance of being stratified; goblet cells
- non-ciliated(rare) or ciliated
what are the two types of pseudo-stratified simple epithelium
non-ciliated
ciliated
function ciliated Pseudo-stratified simple epithelium
ciliated= protection, secretion of mucin, movement of particles and mucus
function non-ciliated Pseudo-stratified simple epithelium
protection
location of ciliated pseudo-stratified simple epithelium
ciliated: trachea, bronchi, nasal cavity
location of non-ciliated pseudo-stratified simple epithelium
non-ciliated: male urethra, male epididymis (sits on top of testes, where sperm matures)
describe stratified Squamous epithelium
- apical surface cells are squamous while the cells closer to the underlying connective tissue are cuboidal to columnar
function of stratified Squamous epithelium
found in areas subjected to wear and tear; top layer cells are rubbed away and replaced via mitosis of the innermost cells
what are the two types of of stratified Squamous epithelium
keratinised
non-keratinised
location of keratinised stratified Squamous epithelium
keratinised (dry) contains keratin, a protein that strengthens the tissue, LOCATION: epidermis
location of non-keratinised stratified Squamous epithelium
non-keratinised (wet) mucosa; LOCATION: mouth, oesophagus, larynx, vagina, anal canal
describe stratified cuboidal epithelium
- rare
- usually only two or three layers of cuboidal cells
function of stratified cuboidal epithelium
protection, secreition
location of stratified cuboidal epithelium
LOCATION: ducts of sweat glands
describe stratified columnar epithelium
- rare
- basal layer – short cells of irregular shape, apical cells columnar
function stratified columnar epithelium
protection, secretion
location of stratified columnar epithelium
conjunctiva, large ducts of salivary glands
describe transitional columnar epithelium
- characterised with cells that change form according ot the degree of distension – flat (squamous) when stretched and cuboidal when relaxed
function of stratified transitional columnar epithelium
protection, distensibility
location of stratified transitional columnar epithelium
lining the cavity of urinary bladder, ureters,
function of connective tissue
- provides structural and metabolic support to other
* tissues: protection, transport, repair, storage
what does fibroblasts synthesise?
- synthesise collagen, elastic and reticular fibres, and extracellular matrix
what are fibroblasts responsible
wound healing
describe adipocytes
o specialised for fat storage, energy and insulation; involved in the synthesis of hormones and growth factors
o act as a cushion for organs e.g. heart and kidney
o located throughout loose connective tissue
o Cytoplasm with flattened nucleus forms a very narrow rim around a large central lipid droplet
o Produces the hormone leptin – which is responsible for satiety/fullness – leptin controls nutrient homeostasis
describe macrophages
o Develop from monocytes in bone marrow – (WBC)
o Irregular shape, short branched projections
o Destroys bacteria and cellular debris (phagocytosis)
o Fixed and wandering
o Contains lots of lysosomes to help break down debris, virus etc.
o Immune/defence cells
describe mast cells
o Immune cell that develop in bone marrow, differentiate in connective tissues
o Function: inflammatory and allergic response (granules contain histamine, heparin), kill bacteria
what is the extracellular matrix made up of
ground substance
collagen fibres
elastic fibres
reticular fibres
describe ground substancce
o Fluid, semi-solid, solid
o Space between cells and fibres
o Consists of water and complex carbohydrates and glycoproteins – contains hydrolonic acid (helps phagocytes to move through connective tissue)
o Hylaronidaise is produced by WBC and sperm cell – makes hydrlinic acid more permeable
o In sperm cell hydralonidaise to breakdown hydralonic acid to allow the sperm cell to enter the egg for fertilisation
Function: mechanical and structural support for tissue; biochemical barrier-role in regulating metabolic functions in surrounding cells
describe collagen fibres
o Strongest fibres (stronger than steel fibres of the same size)
o Most abundant type: closely packed orderly, flexible, high, tensile strength
o Made of collagen protein
o Types:
1. Skin, bones, tendons, organs capsules
2. Hyaline and elastic cartilage
3. Organs, smooth muscle
4. Associated with basal lamina of the basement membrane of epithelial cells (support, filtration)
describe elastic fibres
o Thin, elastic allows tissue to respond to stretch and distensions; located in skin, lung and bladder
o Elastin surrounds glycoprotein allowing the tissue to stretch and recoil
describe reticular fibres
o Very thin, type 3 collagen associated with high levels glycoprotein
o Provides a supporting framework for the cellular constituents of various tissues and organs
o E.g. in basement membrane
list the types of connective tissue proper
loose connective tissue - areolar - adipose - reticular dense connective tissue - dense regular - dense irregular -elastic
describe loose connective tissue areola
o Very thin, type 3 collagen associated with high levels glycoprotein
o Provides a supporting framework for the cellular constituents of various tissues and organs
o E.g. in basement membrane
describe loose reticular connective tissue
o intertwining reticular fibres
o creates a network that forms the stroma, binds smooth muscle cells; reticular fibres filter blood and lymph
o makes up bone marrow…
describe adipose tissue
o consists of mostly adipocytes
o location subcutaneous, around organs e.g. heart, kidney, yellow marrow of long bones
o function: insulation, energy reserve and protection and support
o great for nutrient storage
o responsible for removing lipids from blood stream
o more adipose tissues=body creates extra blood vessels
o in the messentary - anchors small intestine to abdominal wall (in pertineoum)
o 2 different types – white (insulation, energy reservation…) and brown (only found in 3 locations anterior neck, anterior abdominal wall, between scapulae – great ability for thermogenesis)
function of adipose tissue
nsulation, energy reserve and protection and support
o great for nutrient storage
describe dense regular connective tissue
o Abundant collagen fibres, few cells and little ground substance
o Well aligned densely packed fibres collagen arranged in bundles – fibroblasts arranged in rows between collagen bundles
location of dense regular connective tissue
tendons, ligaments, aponeuroses and capsules of organs
function of dense regular connective tissue
o FUNCTION: strong attachment between structures
o With strands great strength if only pulled in one direction
describe dense irregular connective tissue
o Mostly collagen fibres, few cells and little ground substance
o Tightly packed fibres random in 3dimesions – can withold being pulled in different directions
location dense irregular connective tissue
the dermis (reticular or deep layer) and digestive tract (submucosa)
function dense irregular connective tissue
o FUNCTION: strength, resists stretch/tearing in multiple directions
describe elastic connective tissue
o Predominantly elastic fibres; fibroblast in the spaces between the fibres
o Yellowish in colour, stretching capability; lungs, elastic arteries some ligaments
o E.g. in lungs, aorta
what are the two types o fcartilage
hyaline
fibrocartilage
location of hyaline cartilage
at ends of long bones, anterior ends of ribs, nose parts of larynx, trachea
function of hyaline cartilage
cushioning,
creates a smooth low friction surface for joints
provide flexibility and support in respiratory system, frame for ossification (epiphyseal plste)
what are the two main materials in hyaline cartilage
chondrocytes
collagen
what is fibrocartilage made of?
combination of dense regular connective tissue and cartilage
location of fibrocartilage
o LOCATION:pubic symphysis, intervertebral discs, menisci of knee
function of fibrocartilage
o FUNCTION: support and fusion, resists deformation under stress
how many bones
206
what are the two classifications of bone tissue
compact , spongy
function of bones
support movement protection mineral storage
blood cell formation
energy storage
what are the 5 classifications of bones?
long short flat irregular wormian
describe long bones
longer than they are wide
e.g. of long bones
humerus radius ulna pahalanges femur
describe the diaphysis
shaft (diaphysis) – a cylinder of compact bone around the inner(medullary cavity, outer surface surrounded by a layer of connective tissue – periosteum, nutrient foramen
where is the epiphysis located
- Epiphysis – end of the bone, spongy tissue, red bone marrow, articular cartilage
location of metaphysics in bones
- Metaphysis – between diaphysis and epiphysis, in growing bone contains epiphyseal (growth) plate of hyaline cartilage (longitude growth), becomes epiphyseal line
e.g.s of short bones
carpals, tarsals
describe short bones
nearly equal in length and width
describe sesamoid bones
- Develop in tendons as a response to physical stress; not always completely ossified
e.g.s of sesamoid bones
patella, pisiform
describe flat bones
• Two surface layers of compact bone and spongy bone in the centre is called diploë
e.g. of flat bones
• E.g. cranial bones, ribs, scapulae
e.g. of irregular bones
vertebrae, calcaneus, facial bones
where is the frontal bone located
front of cranium
where is the parietal bones located
Theupper sides and rood of the craium
Articulations form sutures:
- Coronal suture between frontal and parietal bones
- Sagital suture between parietals meet tempporals
- Squamous suture parietals meet temporals
- Lamboid suture where parietals meet occiptal
where is the temporals bone located
Squamous part (zygomatic process – zygomatic arch)
Tympanic part (external acoustic meatus – ear canal)
Petrous part (the floor of the cranium)
Styloid process (projects inferiorly)
Mastoid process (can be used in sex determination)
where is the occipital bone located
The posterior and most of the base of the skill
Lambdiod suture (parietals)
Foramen magnum (spingal cord)
Occiptal condyles
where is the sphenoid bone located
Part of the anterior and middl eportions of the base of the craium and orbit
The body (sinus) and laterally projectign greater and lesser wings
where is the ethmoid bone located
The anterior portion of the floor of the cranium between the orbits, roof and superior sidewalls of the nasal cavity, spetum
ethmoid sinus
Superior andmiddle nasal conchae- scross shaped plates of bone
Humidifys air preparing it to go in the lungs
where is the fontaelles bone located
Plates of cartilage (mesenchyme):
- Anterior (1) between parietals and frontal (fuse 18-24 months)
- Posterior (1) between parietals and occiptal (fuse 2-3 months)
- Anterolateral (2) between frontal, parietal, temproal and sphenoid (fuses at 6 months)
- Posterolateral (2) between parietal, occiptal and temporal (fuse 6-18 month)
- Allows for baby to be birthed via pelvis – allows skull ot be manipulated and moved to birth – then fuse later
what are the three large distinct depressions
- The anterior cranial fossa: the frontal bone (anteriorly), ethmoid (middle), body and lesser wings of sphenoid (posteriorly)
- The middle cranial fossa: sella turcica (medially), greater wings of sphenoid, squamous (laterally) and petrous (posteriorly) parts of temporal
- The posterior cranial fossa: mainly occiptal
where is the maxilla
upper jaw
locate the palatine bone
top of mouth
locate zygomatic bone
cheekbones
• Lateral contours of the face, lateral margin of the orbit
• Temporal process and zygomatic process (temporal)= zygomatic arch
• Defines inferior margin orbit
locate lacrimal bone
tear ducts
The anterior part of the medial wall of the medial wall of the orbit
• Smallest facial bone
• Has a duct/hole which drains tears
locate the vomer
- Thin, flat, forms the lower part of the nasal cavity (below superior and middle nasal conchae)
- Component of nasal septum along with septal cartilage and perpendicular plate
locate the mandible
lower jaw
- Largest strongest facial bone
• Condylar process (forms main portion of a moving joint) vs. coronoid process
locate hyoid bone
• Not attached directly to any other bone
- Located in the neck inferior to mandible
- Suspended from the styloid process by the stylohyoid muscles and ligaments
- Supports and acts as a moveable base for the tongue
list the regions of the vertebrae
- Regions: cervical 7, thoracic (12), lumbar (5), sacrum (5 fused), coccyx(4 fused)
list the curves of the vertebrae
- Cervical (convex, secondary)
- Thoracic (concave, primary)
- Lumbar (convex, secondary)
- Sacral (concave, primary)
describe the cervical vertebrae
- Spinous process is unique to cervical vertebra
- C1 and C2 are ATYPICAL
- C3-C7 TYPICAL
- Vertebra within neck
- 7 vertebrae
describe the thoracic vertebrae
- 12 which articulate with the 12 ribs
- Transverse processes make contact with ribs and allow for ligament and tendon
- Foramen is where spinal cord travelst hrough
- 12 vertebrae
describe the lumbar vertebrae
- Largest
- Bears the most weight
- Thick body, wider
- Oval foramen
- 5 vertebrae
describe sacrum and coccyx
- Pelvis articulates with sacrum
* Last 9 of vertebra
how many ribs
12 pairs
describe the divisions of the ribs
- True (1-7): attached directly to the sternum through their own costal cartilage
- False (8-10); cartilage to that of the rib immediately superior – no direct attachment to sternum, instead attached to costal cartilage of the ribs above
- Floating (11-12): do not connect – imbed into muscle of back
describe the sternum
- Middle part of thoracic cage
- 3 regions: manubrium, body, xiphoid – where manubrium and body (sternum angle) connects acts a landmark to determine where we are in the midline (at rib 2)
locate the scapula + classification
shoulder blade
- irregular flat
locate the clavicle + classification
collar bone
long
locate the humerus + classification
arm
long
locate the ulna + classification
pinky side -medial
forearm
attaches to the tracheal of humerus
long
locate the radius + classification
forearm thumb side - lateral- Head of radius joins with capitulum of humerus has a flattened round head long
locate the carpals, metacarpals and phalanges
carpal = wrist metacarpal = mid finger phalange = finger
what makes up the pelvis
hip bone (os coxa) sacrum and coccyx
what bones make up the os coxa
- Illium
- Ischium
- Pubis
which is supporting bone out of the tibia and fibula
fibula
locate the tarsals, metatarsals and phalanges
carpal = ankle metacarpal = mid toe phalange = toe
what are the 3 functional classifications of joints
- synarthrosis (no movement) e.g. sutures of skull, between manubrium and sternal body
- amphiarthrosis (slight movement) e.g. pelvis when walking, vertebral joints
- diarthrosis (free movement) e.g. shoulder joint, hip, knee… (typically in upper and lower limbs
e.g. of synarthrosis
sutures of skull, between manubrium and sternal body
e.g. of amphiarthrosis
e.g. pelvis when walking, vertebral joints
e.g. of diarthrosis
e.g. shoulder joint, hip, knee… (typically in upper and lower limbs)
describe lateral movement
abduction
describe medial movement
adduction
describe extension movement
straightening
describe elevation
upward e.g. elevating the mandible, shrugging shoulder (elevation of scapula)
describe depression
downwards e.g. depressing your mandible – opening mouth
describe protraction
forwards e.g. push mandible forward
describe inversion
- inversion – when the sole of foot is exposed medially
describe eversion
- eversion – when the sole of food is exposed laterally – feet only
describe dorsiflexion
- dorsiflexion – when toes are pointed towards celling
describe plantar flexion
- plantar flexion – tippy toes – pointed downwards
describe pronation
- pronation – palm facing downwards
describe supination
- supination – palm facing upwards
describe opposition
- opposition – only of thumb – thumb crosses palm and touches fingers
describe retraction
backwards e.g. bring mandible back
what are the structural classifications of joints
synovial
fibrous joint
cartilagenous
types of fibrous joints
- sutures (synarthrosis)
- syndesmoses (synarthrosis)
- interosseous membrane (amphiarthrotic)
describe fibrous joints
o no SC bones held together by dense regular connective tissue:
describe cartilaginous joints
o no SC, bones held together by cartilage:
types. of cartilaginous joints
- synchondroses (synarthrotic)
- symphyses (amphiarthrotic)
describe synovial joints
o SC present, bones connected by dense irregular connective tissue (articular capsule), accessory ligaments (diathrotic)
types of synovial joints
- planar
- hinge
- pivot
- condyloid
- saddle
- ball and socket
describe sutures
- found between skull bones
- irregular interlocking edges of skull bones
- made of thin layer of dense regular tissue (short distance between articulating bones)
- synarthrotic - no movement
describe gomphoses
- joint between alveolar process and tooth (tooth socket)
- a greater distance between the articulating bones, therefore, more dense regular connective tissue compared ot sutures (ligaments)
- synarthroritc
describe syndesmoses
- interosseous membrane
- a substantial sheet of dense irregular connective tissue binds two bones
- found between ulna and radius, tibia and fibula
- amphiarthrotic – light movemnt
describe cartilaginous joints
- eithwe hyaline cartilage or fibrocartilage between bones
- lack of joint cavity
- synarthrosis or amphiarthosis
- two types:
synchondroses (primary cartilaginous)
symphyses (secondary cartilaginous)
e.g, of synchondroses
- e.g. epiphyseal plates: joint between 1st rib and manubrium
e.g. of symphyses
- e.g. pubic symphysis, intervertebral joints
- amphiarthrosis
describe synchondroses
- bones connected by hyaline cartilage
describe symphyses
- the articular surfaces covered with hyaline cartilage and united by fibrocartilage
list the types of synovial joints
planar hinge condyloid saddle pivot ball and socket
describe planar
- articular suraces: flat or slightly curved
e.g. planar joints
- intertarsal, intercarpal, sternoclavicular, acromioclavicular…
describe hinge joints
- articular surfaces: one convex and the other concave
movement of planar joints
- movement: gliding or sliding the plane of articular surfaces (biaxial)
movement of hinge joints
- movement: flexion and extension (uniaxial)
e.g. hinge joints
- knee (modified), elbow, interphalangeal, ankle
describe condyloid joints
- articular surfaces: one convex, oval shaped the other concave, oval-shaped
movement of condyloid joints
- movement: flexion/extension, abduction/adduction, circumduction (biaxial)
describe saddle joints
- articular surfaces : saddle (modified condyloid)
movement of saddle joints
- movements: flexion/extension, abduction/Adduction, circumduction (biaxial)
e.g. of saddle joints
- carpometacarpal between trapezium and metacarpal of the thumb
describe pivot joints
- arfticular surfaces: rounded/pointed and a ring (bone and ligament)
movement of pivot joints
- movmenet: rotation around the central axis (uniaxial)
e.g. of pivot joints
- medial atlantoaxial, proximal radionar joint
describe ball and socket joint
- articular surfaces: spheroisal surface fititn ginto a cup-like depression (socket)
movement of ball and socket joint
- movment; flexion/extension, adduction/abduction, rotation (triaxial)
e.g. ball and socket joint
shoulder
hip joints
what is osteogenic cells role
prominent role in growth and remodelling
what is osteoblasts responsible for
- Responsible for synthesis of organic component of matrix and influence deposition of inorganic components
what is osteocytes responsible for
- Cavities (lacunae) between (within) lamellae contain osteocytes
- Process from osteocytes travel through small canals (canaliculi) to communicate with adjacent osteocytes
- Osteocytes maintain bone matrix
- Can respond to mechanical forces and lay down new matrix or remove matrix
osteoclast
- Arise by the fusion of monocytes or macrophages
- Multinucleated, branched, motile, phagocytic, bone resorption
- Osteoclast attach themselves to the bone matrix and form a tight seal at the rim of the attachment site. The cell membrane facing the matrix has deep invaginations forming a ruffled border
- Use lysosomes to break down the matrix – resorption. Osteoclasts are stimulated (indirectly) by parathyroid hormone and inhibited by calcitonin (thyroid gland)
function of muscle tissue
- movement
- stability
- storage and movement of substances within the body
- heat production
properties of muscle tissue
- electrical excitability
- contractibility
- extensibility
- elasticity
organisation of muscle
- muscle
- muscle fascicle
- myofibers (cells)
- myofibrils (organelles)
- myofilaments (proteins)
is skeletal tissue striated?
yes
is cardiac tissue striated?
yes
is smooth tissue striated?
no
in skeletal muscle what is the proximal attachment / origin (appendicular skeleton)
attachment of the stationary bone
in skeletal muscle what is the distal attachment/ insertion(appendicular skeleton)
attachment to the moveable bone
in skeletal muscle what is the superior attachment (axial skeleton)
moveable
in skeletal muscle what is the inferior attachment (axial skeleton)
less movable
what is a myofiber
muscle cell
what is a bundle/group of myofibers
fassicle
what are the 3 layers of connective tissue that surround the skeletal muscle
endomysium – surrounds myofibers
perimysium – surrounds the fascicle
epimysium – wraps everything together
what is eccentric
- eccentric – less force is exerted by the muscle than what is needed – half the amount
what is concentric
- concentric – more force than the weight is heavy is needed
what nerve innovates the muscles of facial expression
- facial nerve
what is the function of muscles of facial expression
- function: facial expression – moves the skin and not bones
what nerve innovates the muscles of mastication
- trigeminal nerve (mandibular division)
function of the muscles of mastication
chewing
what nerve innovates the muscles of the abdomen
- thoracic spinal nn.
what muscles make up the muscles of the abdomen
rectus abdominis
transversus abdominis
internal oblique
external oblique
function of the muscles of the abdomen
- anterolateral wall of abdomen
- flexion of the trunk
- support viscera
what nerve innovates the muscles of respiration
phrenic nerve
what muscles make up the muscles of respiration
internal intercostals external intercostals diaphragm caval opening central tendon of diaphram aortic opening
what nerve innovates the muscles of the back
cervical, thoracic, lumbar spinal nerves
what muscles make up the muscles of the back
erector spinae
- illocostalis group
- logissimus group
spinalis group
function of the muscles fo the back
erects the spine
what muscles make up the pectoral girdle and thorax
deltoid pectoralis major latimus dorsi rhomboid major rhomboid minor trapezius pectoralis minor
what muscles make up the UPPER LIMB(ANTERIOR COMPARTMENT OF THE ARM)
biceps brachii ,long and short heads
what nerve innovates UPPER LIMB(ANTERIOR COMPARTMENT OF THE ARM)
musculocutaneous nerve
what muscles make up the rotator cuff
- supraspinatus
- subscapularis
- infraspinatus
- teres minor
function of rotator cuff muscles
- stabilise shoulder joint
- involved in any movement of shoulder joint
what muscle makes up the UPPER LIMB (POSTERIOR COMPARTMENT OF THE ARM)
triceps brachii
what nerve innovates the UPPER LIMB (POSTERIOR COMPARTMENT OF THE ARM)
radial nerve
function of UPPER LIMB (POSTERIOR COMPARTMENT OF THE ARM)
extension of the arm
what muscles are included in the UPPER LIMB ( ANTERIOR COMPARMENT OF THE FOREARM)
pronator teres flexor carpi radiallis flexor carpi ulnaris palmaris longus flexor digitorium superficailsi
what nerve innovates the muscles UPPER LIMB ( ANTERIOR COMPARMENT OF THE FOREARM)
- median and ulnar nn.
function of the muscles of UPPER LIMB ( ANTERIOR COMPARMENT OF THE FOREARM)-
flexion of wrist and fingers
what muscle makes up the UPPER LIMB (POSTERIOR COMPARTMEMT OF THE FOREAEM)
extensor digitorum
what nerve makes innovates the UPPER LIMB (POSTERIOR COMPARTMEMT OF THE FOREAEM)
radial nerve
what is the function of UPPER LIMB (POSTERIOR COMPARTMEMT OF THE FOREAEM)
extension of wrist and fingers
what muscles make up the hand
- thenar eminence
- hypothenar eminence
what nerve innovates the muscles of the hand
- ulnar and median nn.
function of the gluteal region of the lower limb
- function: extend thigh hip, abduction and external rotation
what muscles make up the gluteal region of the lower limb
gluteus maxiumius gluteus medius piriforms superior gemmellus obturator intermus inferior gemellus quadrates femoris
what muscles make up the LOWER LIMB (ANTEIROR COMPARTMENT OF THE THIGH)
rectus femoris
vastus medialis
vastus laterus
what nerve innovates LOWER LIMB (ANTEIROR COMPARTMENT OF THE THIGH)
femoral nerve
function of muscles of the LOWER LIMB (ANTEIROR COMPARTMENT OF THE THIGH)
extension of the knee
what nerve innovates the LOWER LIMB (MEDIAL COMPARTMENT OF THE THIGH)
obturator nerve
function of the muscles of LOWER LIMB (MEDIAL COMPARTMENT OF THE THIGH)
adduct the hip
what make sup the hamstring group -LOWER LIMB (POSTERIOR COMPARTMENT OF THE THIGH)
- hamstring group:
semimembranosus
semitendinosus
biceps femoris
what nerve innovates LOWER LIMB (POSTERIOR COMPARTMENT OF THE THIGH)
- tibial and common fibular (from sciatic)
function ofLOWER LIMB (POSTERIOR COMPARTMENT OF THE THIGH)
extend hip flex knee
what muscles make upLOWER LIMB (ANTERIOR COMPARTMENT OF THE LEG)
tibialis anterior
extensor digitorium longus
extensor hallicus longus
what nerve innovates the muscles LOWER LIMB (ANTERIOR COMPARTMENT OF THE LEG)
deep fibular n
function of the muscles LOWER LIMB (ANTERIOR COMPARTMENT OF THE LEG)
dorsiflexion
what muscles make up the LOWER LIMB (LATERAL COMPARMENT TOF THE LEG)
fibulas longus
fibulas brevis
what nerve innovates muscles of LOWER LIMB (LATERAL COMPARMENT TOF THE LEG)
- superficial fibular (peroneal) n.
function of the muscles of LOWER LIMB (LATERAL COMPARMENT TOF THE LEG)
eversion of foot
what muscles make up the LOWER LIMB (POSTERIOR COMPARMENT OF THE LEG)
gastrocnemius - lateral and medial heads
function of the muscles LOWER LIMB (POSTERIOR COMPARMENT OF THE LEG)
plantar-flexion
what nerve innovates muscles of LOWER LIMB (POSTERIOR COMPARMENT TOF THE LEG)
tibial
locate the apex of heart
pointy bottom
what is the posterior surface made of
predominantly made up of left and right atrium
function of pericardium
- keep the heart in place while allowing the freedom to move
what are the two layers of pericaridum
fibrous (outer)
serous (inner)
what makes up the walls of the heart
epicardium
myocaridum
endocardium
what is the inner wall of the heart
endocardium
what is the middle wall of the heart
myocardium - (95% of wall)
what is the external wall of heart
epicardium
what are the two receiving chambers of heart
atria
what are the two pumping chambers of heart
ventricles
what and where are the grooves on the heart
- coronary (between atria and ventricles
- anterior and posterior interventricular (btw the ventricles)
- sulci contain coronary vessel supplying heart wall
what does the right atrium recive
- receives deoxygenated blood from: inferior and superior vena cava and coronary sinus
what are the features of the right atrium
- posterior wall smooth
- anterior wall rough – musculi pectinate, auricle
- interatrial septum
fossa ovalis (foramen oval: opening in foetal heart to direct blood from right to left atria to bypass non-functioning foetal lungs closes after birth) - right atrioventricular (tricuspid)
- quite a thin wall
what does the right ventricle pump
- pumps deoxygenated blood to the pulmonary trunk (artery) through the pulmonary (semilunar) value to the lungs
features of right ventricle
- thick muscular walls, intraventricular septum
- inner surface: muscular ridges – trabeculae carinae
- the cusps of the tricuspid value connected to the papillary muscles via the chordae tendineae
what dies the left atrium receive
- receives oxygenated blood from the four pulmonary veins
features of left atrium
- left atrioventricular orifice closed by the left atrioventricular (bicuspid, mitral) value
- slightly above and behind the atrium – superior and posterior
- holds less blood than right atrium
- much thicker myocardium than right atrium