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22 Cards in this Set
- Front
- Back
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What are the common attachment of the posterior thigh and popliteal fossa muscles?
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ischial tuberosity
all except short head of biceps femoris inferior 1/3 of posterior femur associated with lateral supra-ocndylar line |
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How do ilia and chimpanzees and humans differ? implications?
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ilia are low and anterolaterally broad in humans
- gluteus medius and minimus abduct and keep trunk from toppling toward swinging leg |
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What is the articularis genu?
Which nerves receive contributions from L2-L4 ventral rami? |
1. raises knee capsule
2. femoral and obturator |
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What is the terminal branch of the femoral nerve
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1. saphenous
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Which nerve innervates obturator internus?
What muscles are below the piriformis in order from superior to inferior in gluteal region |
nerve to obturator internus and superior gimellus
triceps coxae (sup. gemellus, obt. internus, inf. gemellus) |
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What are the boundries of the popliteal fossa?
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Superior:
lateral- biceps femoris medial- semimembranosus and emitendinosus Inferior: lateral- lateral head of gastrocnemius medial- medial head of gastrocnemius Roof: (posterior) skin and fascia Floor: popliteal surface of femur, oblique popliteal ligament and fascia over popliteus |
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What is in the popliteal fossa?
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Nerves: 1. Tibial, 2. Common fibular nerves
Veins: 1. Popliteal vein 2. Small saphenous vein Artery- popliteal (superficial to deep, and slightly lateral to medial) Nodes/vessels of popliteal |
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What are the innervations and actions of the hamsting muscles and what are the hamstring muscles?
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Hamstring muscles all innervated by tibial division of sciatic nerve L5-S1 and S2
except- biceps femoris short head: (common fibular division) 1 and 2 rotate leg medially 1. semitendinosus 2. semimembranosus 3. biceps femoris (short and long head) rotates leg laterally, extends thigh when ready to walk |
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Label this stuff its easy!
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SEE!
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Label the areas in this popliteal fossa
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1.Biceps femoris muscle
2. Short head 3. Lateral head 4. Semimembranosus muscle 5. Popliteal vessels and tibial nerve 6. Gastronemius muscle 7. Medial head 8. Lateral head |
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Where and why is the genicular anastomosis important?
What could cause bipassing to occur? |
- for collateral circulation bypassing politeal artery
- knee fully flexed for too long - narrowed or occluded popliteal vessels |
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What are the terminal branches of the popliteal artery?
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1. anterior tibial artery
2. Posterior tibial artery |
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What is the origin of the popliteal vein and what does it become?
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from small saphenous vein and becomes femoral vein after traversing adductor hiatus
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What are the two nerves of the politeal fossa and where did they come from?
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From branches of sciatic nerve
Tibial Common fibular nerve (peroneal)- |
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If there was a fracture to the head or neck of the fibula what nerve might we be worried for?
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a. common fibular nerve- due to passing behind head of fibula and winds laterally to neck.
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Damage to common fibular nerve could cause loss of sensation to what?
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dorsum of foot, lateral aspect of leg, all anterior and lateral compartments of leg
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What does common fibular nerve terminate into?
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deep fibular nerve and superificial fibular nerve
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Patient presents the following what nerve damage is most likely?
a. loss of plantar flexion and clawing of the toes b. loss of dorsal flexion (2) c. trouble getting heel off the ground |
a. tibial nerve
b. common fibular nerve, deep fibular nerve |
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What is the origin and role of the sural nerve?
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formed by union of medial and lateral sural nerves (communicating branch of lateral sural nerve)
- innervates skin on back of leg and lateral side of ankle, heel, and foot |
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Name the nerve damaged in he following...
a. unable to invert foot after falling (possibly 2) b. wreck that causes avulsion of skin over anterolateral leg and ankle |
a. deep fibular (peroneal) and tibial
b. superficial fibular nerve |
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Name the muscle most likely damaged due to following situations...
a. no flexing or medial rotation of thigh while running and climbing b. weak abduction and medial rotation of thigh after falling in tub |
a. tensor fasciae latae
b. gluteus minimus or medius |
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Which nerve or artery is the cause or solution to the following situations...
a. knife wound penetrates superficial vein that terminates in popliteal... Where does bleeding occur from? b. blood clot in popliteal artery at proximal end... which artery allow blood to reach foot? c. which artery could be be damagd from fracture of head and neck of fibula? |
a. lesser saphenous vein
b. lateral circumflex femoral a. c. anterior tibial |
