Module 1 - Topic 3-4: Types Of Tissues And Basic Anatomical Terminology Flashcards
Epithelial tissue
Covers body surfaces, lines hollow organs and form glands
Epithelial tissue function
A barrier
Absorption
Secretion
Connective tissue
Protects and supports the body
Bonds organs together
Stores energy reserves
Provides immunity
Connective tissue function
Organise and maintain body structure
Transport gases
Defence
Muscle tissue
Generates physical force for movement
Muscle tissue - functions
Movement
Nervous tissue
Detects changes in conditions
Responds by initiating and transmitting nerve impulses
Nervous tissue - functions
Sensory and motor impulse conduction
Interpretation of external and internal environment
Controls and coordinates body activities
Tissue development
From 3 primary gem layers
Primary germ layers
Ectoderm
Endoderm
Mesoderm
Simple epithelium
Single layer of cells
Stratified epithelium
Two or more layers of cells
Pseudostratified epithelium
Single layer that appears stratified
Squamous cells
Flattened
Cuboidal cells
Cube shaped or hexagons
Columnar cells
Tall and cylinders
Transitional cells
Able to undergo changes in shape cause by distension
Simple squamous epithelium
Located in areas of little wear and tear and adapted for diffusion and filtration, eg, inner lining of heart chambers
Simple cuboidal epithelium
Adapted for secretion and absorption eg, kidney tubules and small ducts
Simple columnar epithelium
Some areas have cilia to move material past cells (upper respiratory passages)
Some have microvilli to increase surface area and efficiency of absorption (small intestine)
Stratified squamous epithelium
Provides protection to areas of much wear and tear eg, outer layer of skin
Stratified cuboidal epithelium
Provides protection eg, ducts of sweat glands
Stratified columnar epithelium
Functions in protection and secretion eg large ducts of some glands
Transitional epithelium
Contains cells that undergo changes in shape and locate sin areas of stretching eg, urinary bladder
Pseudo stratified columnar epithelium
Functions in secretion or movement of materials by ciliary action eg, Fallopian tubes
Glandular epithelium
Specialised cells organised to form glands that secrete substances either into ducts, onto surfaces or directly into blood
Anatomical position
A standard position that ensures directional terms are clear
Anatomical position - position
Body is erect
Feet flat on floor
Upper limbs at side
Palms facing forward
Prone position
Body is lying face down
Supine position
Body is lying face up
Semi prone position
Body is lying on it’s side
Regional names
Terms given to specific regions of body
Regional names - types
Head - cephalic
Neck - cervical
Trunk - shoulders to gentials, except limbs
Upper limbs - shoulders to gentials (arms)
Lower limbs - gentials to heel
Body planes
Imaginary flat surface that passes through the body
Body section
Flat surface of the body studied after the body has been cut along the specific plane
Directional terms
Used to accurately locate one body structure relative to another body structure
Superior
Top halve of body
Inferior
Lower half of body
Lateral
Left or right side of body
Medial
Middle of body
Proximal
Top of arm
Distal
Bottom of arm
Anterior
Front of body
Posterior
Back of body
Mani body cavities
Dorsal and ventral
Dorsal cavity
Towards the back
- holds cranial and vertebral cavity
Cranial cavity
Contains brain and coverings
Vertebral cavity
Contains spinal cord and spinal nerve roots
Ventral cavity
Towards the front (belly) side
Holds thoracic cavity and abdominopelvic
Thoracic cavity
Separated from abdominal cavity by diaphragm
Subdivided into right and left pleural cavities, pericardial cavity and mediastinum
Abdominopelvic cavity
Subdivided into abdominal and pelvic cavities
Visceral layer
Covering organs
Parietal layer
Lining walls of cavities
Abdominopelvic cavity - division
Into 9 regions
Radiography
Use of X-rays
Used for dense structures like bones
Dense structures are white
Ct scan
Refined version of radiography
Slices through the body to give thin slices
More refined details of soft and dense tissue
MRI scans
Used to view soft tissues
Depends on water content
Dense tissue- low water content - are not detected
Sonography
Ultrasounds
High frequency waves used to examine internal organs
Causes echoes
Positron emission tomography
Observes metabolic processes
Given injection that shows up in scanner
sagital plane
straight down middle of body (left and right)
parasagital plane
to the left or right of sagitial plane
coronal plane
straight through middle of body (front and back)
transverse plane
divides body top and bottom
Appendicular
everything off the trunk of the body (legs,arms)
axial
the trunk of the body
cephalic
head
Cervical
neck
Mental
chin
Oral
mouth
otic
ear
orbital
around eye
Axillary
armpit
Sternal
Breastbone
Brachial
upper arm
Acromial
Shoulder
Trunk
chest
Umbilical
navel
Lumbar
lower back
Inguinal
groin
Gluteal
buttock
Femoral
thigh
popliteal
back of knee
Patellar
knee cap
Crucal
lower leg