ANATOMY PRACTICAL FINAL Flashcards
The Femoral nerve innervates ?
Anterior compartment (Action: knee extension, hip flexion)
The sciatic nerve innervates what compartment ?
Posterior compartment of thigh (action: hip extension, knee flexion)
The gemellus superior and _________ _________ are innervated by what nerve?
Obturator internus
Innervated by the nerve to the obturator internus
The inferior gemellus and quadratus femoria are innervated by what nerve?
Nerve to the quadratic femoris *from sacral division
What nerve innervates the short head of the bicep femoris?
Sciatic Nerve fibular division
What nerve innervates the biceps femoris long head?
Sciatic nerve tibial division
The tibial nerve travels with what artery?
Posterior tibial artery
Deep fibular nerve travels with what artery?
Anterior tibial artery
Name the O and I of rectus femoris
O: AIIS
I:Tibial tuberosity
Name the O and I of the sartorius
O: ASIS
I: pes anserinus
(Proximal, medial, anterior, tibial shaft)
O and I of vastus intermedius
O: anterior and lateral surfaces of the femur
I: tendon of the quadriceps
O and I of vastus lateralis
O: greater trochanter of femur
I: patella via quad tendon; tibial tuberosity via the patellar ligament
Compare and contrast extensor digitorum longus and flexor digitorum longus
Ext. dig. Long. Is on anterior side of lower leg, lateral from tibialis anterior. Inserts into distal phalanges of digits 2-5 and extension of digits 2-5
Flexor digitorum longus - most medial side of deep calf (Part of TOM, DICK, and HARRY), insertion to inferior surfaces of the distal phalanges of digits 2-5
T or F
Splenius capitis involves ipsilateral rotation of the head
T
T or F
Semispinalis cervicis action involved contrilateral rotation of the head
What is contralateral rotation
T
Turning the head away from the side of the body that contains the muscles performing the action
Name some muscles that contralaterally rotate the head
SCM, multifidus, semispinalis cervicis,
Name some muscles involved in ipsilateral rotation of the head
Splenius cervicis, splenius Splenius capitis, obliquus capitis inferior, rectus capitis posterior major, obliquus capitis superior
The femoral artery divides into what artery and then they artery divides into what two arteries?
Popliteal artery
Then divides into the posterior tibial artery and anterior tibial artery
Name the O: and I: of the biceps femoris long head and then short head
Long head
O: Lateral surface of the head of the fibula
I: Lateral surface of the head of the fibula
Short head
O: Linea aspera of the femur
I: Lateral surface of the head of the FIBULA
What is the O: I: and action of piriformis
O: anterior side of sacrum between S1 and 4
I: greater trochanter
A: Lateral rotation, abduction of the thigh at the high
Differentiate Tibialis posterior from fibularis tertius.
TP-
Originates interossei us membrane, posterior surface of tibia
inserts on navicular bone
FT-
Originates anterior surface of fibula
inserts on dorsal surface of the base of metatarsal 5 (Anterior side of calf region)
What are Tom, dick, and harry? Where do they insert?
*All go behind medial malleolus
Tom - tibialis posterior, inserts tuberosity on navicular bone and slips to cuneiforms metatarsals 2-4
Dick - Flexor digitorum longus (MUSCLE IS MOST MEDIAL, but crosses tibialis, posterior tendon), Inserts inferior surfaces of the distal phalanges of digits 2-5
Harry - flexor hallucis longus (most lateral of the three) inserts inferior surface of the distal phalanx of digit 1 (great toe)
Name the O: I: and action of the sartorius
O: ASIS
I: PES anserinus
A: Flexion, abduction, and lateral rotation of thigh at the hip
Name the O: I: and action of the rectus femoris
O: AIIS
I: common tendon fo the quadriceps
A: extension of the leg at the knee joint, flexion of the hip
Name the muscles of the femoral triangle and the structures that run through this triangle.
Sartorius, adductor longus, inguinal ligment
Femoral artery and nerve run through this triangle
What components run through the suboccipital triangle?
Vertebral artery
Suboccipital nerve
Who does avulsion fractures affect the most:
Active adolescents and young adults who have not reached skeletal maturity
What is an apophyseal avulsion fractures?
Sudden forceful muscular contraction causes avulsion of apophysis to which the tendon attaches
What attaches to an apophysis?
Tendon or ligament
What is an apophysis?
Normal secondary ossification center that is in the non-weight bearing part of a bone
Muscle involved with avulsion of iliac crest:
Abdominals
What is a fracture through the sacral ala caused by?
Osteoporosis
T or F
An apopophysis does not contribute to length of the bone, but contributes to bone growth
T
What is the intercrestal line?
Place a dot on the top of both iliac crests and connect them
Level will be L4 in males and L5 in females
Avulsion of ischial tuberosity
Hamstring
Why is the apophysis more prone to injury?
Cartilaginous growth plate is weaker than the adjacent bone, ligaments, tendon
Avulsion of lesser trochanter
Iliopsoas
Avulsion of AIIS
Rectus femoris
When does the progression of scoliosis stop?
When individual reaches skeletal maturity
Why do we care about lumbosacral transitional segments?
Alters biomechanics
Requires alterations for adjustment technique may contribute to early disc degeneration and desiccation at levels above
Avulsion of pubis symphysis
Adductor
What is the name of the classification system for lumbosacral transitional segments?
Castellivi classification system
Avulsion of greater trochanter
Gluteus medius
Gluteus minimus
Lumbarization / Sacralization
Beginning or end of one spinal region trying to be like the one above or below asymmetrical anatomy changes body biomechanics
Can cause disc dessication
What is adjacent level disease?
Disc dessication = drying out
Avulsion of ASIS
Sartorius
Location to palpate femoral artery
In femoral triangle
Flex hip, roll contact medially into space, medial to tendon
Say contents of femoral triangle
Location to palpate popliteal artery
Back of knee
Have patient flex their knee - place bilaterally contact on both aspects of knee press/dig deep to hamstrings - palpate this vein after it passes through adductor hiatus
Location to palpate posterior tibial artery
Posterior to medial malleolus
Location to palpate anterior tibial artery
Palpate as dorsalis pedis
Have patient dorsiflex foot - tibialis anterior tendon will pop up and extensor hallucis longus
Palpate in between these two tendons of the muscles and on the dorsum of the foot over the navicular
Location to palpate fibular artery
Palpate behind lateral malleolus
Find location and explain sustentaculum tali
Medial aspect of foot shelf on the calcaneus for the talus supports the talus
Find location and explain acetabulum
Socket
Where the head of the femur meets with the pelvis made of fusion of ilium, ischium, pubis bones of hip
Find location and explain pes anserine
Proximal, medial, anterior tibial shaft
Provides for muscular attachment of the sartorius, gracilis, and semitendinosus
Palpate S1 Dermatome
Medial portion of lower back (S1) down leg gradually going to the lateral aspect of foot and calf
Palpate the L4 Dermatome
From low back L4 to anterior side of leg then gradually down anterior side of leg from L to M, ending on the medial aspect of foot and big toe
Palpate L5 Dermatome
From lower back L5 region to lateral thigh/leg and gradually L to M from A to P view. Top of foot and inferior plantar region of foot between toe 1 and 4
Palpate L1 Dermatome
Inguinal region
IDENTIFY TISSUE IMAGES FROM MODULE OF TISSUES***
Cells, compact/spongy bone etc.
Name the trilaminar disc layers
ectoderm, mesoderm endoderm
Explain depolarization
Opening of voltage gated Na+ channels (negative to positive)
Membrane potential decreases and becomes more positive due to sodium voltage gated channels opening (Na+ rushes in)
Explain repolarization and hyperpolarization
Repolarization - closure of Na+ and opening of K+, voltage gated channels
Hyperpolarization - voltage gated K+ channels remain open after the potential reaches resting level (Goes below RMP)
Function of white adipose tissue
Insulation, energy storage suction, protection from abrasion, protects organs
Function of brown adipose tissue
Heat production
Where is hyalin cartilage found?
What’s its function?
Joint, ends of bones trachea, etc.
Provide smooth joint surface acts as model for bone formation
Where is elastic cartilage found? Function?
Fibrocartilage? Function of fibrocartilage.
Ear, epiglottis
Gives support and maintains shape of soft tissues
Meniscus, intervertebral discs pubic symphysis. Tensile strength with the ability to absorb compressive shock
Sclerotome function and differentiation
Regions of bone or skeletal structures innervated by a single NR. Cells of the sclerotome are mesenchymal that differentiate to become: chondroblasts, osteoblasts, and fibroblasts
What glial cell (neuroglial cell) myelinated and insulates the CNS?
How about the PNS?
CNS - oligodendrocytes
PNS - Schwann cells
What is the most abundant CNS neuroglial cell?
What is the function of this cell?
Astrocyte
Structural and metabolic support of neurons, repair processes
T or F
Satellite cells are part of the PNS
T
T or F
Ependymal cells are part of CNS and function by producing and moving CSF
T
T or F
Microglia are PNS cells
F,
CNS cells and function as defense and immune related activities
Value of RMP
-70mV
Threshold value for action potentials
-55mV
What is a graded potential
To simulate or inhibit and action potential lose strength with distance and time
What is an EPSP? What does it cause? 2 molecules involved with EPSP
What is an IPSP? What does it cause?
-Excitatory post-synaptic potential stimulates the formation of AP
-Depolarization
- sodium, calcium ligand gated channels
- Inhibitory post=synaptic potential inhibits formation of AP
- Hyperpolarization
- Postiassium, chloride ligand gated channels opening
Explain relative refractory period (RRP)
A new action potential can be generated but requires a stronger stimulus
Explain absolute refractory period.
Period of time during which a second cation potential cannot be initiated (NO MATTER HOW LARGE THE STIMULUS)
Name the O: and I: of obliquus capitis inferior.
O: SP of the C2
I: TP of C1
Name the O: and I: of obliquus capitis superior
O:TP of C1
I: Occipital bone
Name the O: and I: of rectus capitis posterior major
O: SP of C2
I: Occipital bone
Name the O: and I: of rectus capitis posterior minor
O: Posterior arch of C1
I: Occipital bone
O: and I: of levator scapulae
O: TP of C1-4
I: Medial border of scapula
O and I of Gluteus Maximus
O: posterior gluteal line of ilium
I: Upper fibers = at the iliotibial tract of fascia lata; lower fibers at the gluteal tuberosity
Vastus lateralis O: I: A: N: BS
O: greater trochanter
I: Patella via gudriceps tendon/tibial tuberosity
N: Femoral nerve
BS: Lateral circumflex femoral artery
Gluteus Medius O: I: N: BS:
O: Gluteal surface of ilium
I: lateral surface of greater trochanter
N: SGN (L4-S1)
BS: superior and inferior gluteal arteries
O: BS: of superior gemellus
O: Ischial spine
BS: inferior gluteal artery
O and BS of inferior gemellus
O:Ischial tuberosity
BS: inferior gluteal artery
O: I: and BS of quadratus femoris
O:External border of ischial tuberosity
I: Intertrochanteric crest of femur
BS: Inferior gluteal artery
What is the O and I of the tibialis anterior
O: lateral condyle of tibial shaft
I: base of metatarsal 1 and medial cuneiform
O: and I: of extensor digitorum longus
O: lateral condyle of tibia
I: Distal phalanges of digits 2-5
O: and I: of flexor halicus longus
O: inferior two-thirds of posterior fibula
I: Distal phalange of digit 1 (BIG TOE)
O: and I: of flexor digitorum longus
O: postioer surface of the tibia
I: inferior surfaces of the distal phalanges of digits 2-5
Fibular artery supplies blood with what muscles?
Fibularis brevis, longus, and flexor hallucis longus
O: and I: of plantaris (LONG PEANUT)
O: Above lateral head of gastrocnemius
I: Posterior part of calcaneus
O: and I of popliteus
O: lateral surface of the lateral condyle of femur
I: Posterior surface of proximal tibial shaft
O: and I: of Psoas major
O: TP and Body of the lumbar vertebra
I: Lesser trochanter of femur WITH iliacus
Vastus medialis O: and I:
O: Intertrochanteric line and medial lip of linea aspera
I: Patella via quadriceps tendon
O: I: and BS: of pectineus
O: Superior ramus of pubis
I: Linea aspera
BS: Medial circumflex femoral artery
Name the type of scoliosis that is most common, majorly detected in adolescent females
Idiopathic
Define spondylosis
Degenerative changes of the spine
Define spondylolysis
Break in pars interarticularis