1. Which of the following pairs correctly matches the muscle and/or nerve to its

Question

1. Which of the following pairs correctly matches the muscle and/or nerve to its appropriate compartment of the lower extremity?

a.flexor hallucis longus / tibial nerve - posterior compartment of the leg

b.fibularis brevis / fibularis longus; superficial fibular nerve - lateral compartment of the leg

c.semimembranosus muscle - posterior compartment of the thigh

d.pectineus muscle / femoral nerve - anterior compartment of the thigh

e.obturator nerve - medial compartment of the thigh

f.sartorius muscle - anterior compartment of the thigh

2.The gluteus medius and gluteus minimus muscles are homologous (similar in function) to which of the muscles of the shoulder region listed below:

a.supraspinatus muscle

b.infraspinatus muscle

c. teres minor muscle

d. levator scapulae muscle

3. What do the following muscles have in common: (obturator internus muscle, piriformis muscle, and iliopsoas muscle (combined function of the psoas major and iliacus muscles)

a. insertion onto the greater trochanter

b. lateral rotation of the femur bone

c. flexion of the femur bone

d. insertion onto the lesser trochanter

Explanation / Answer

Answer

a.flexor hallucis longus / tibial nerve - posterior compartment of the leg

Correctly matched

Explanation : Flexor hallucis longus is one among three deep muscle of posterior compartment of leg

b.fibularis brevis / fibularis longus; superficial fibular nerve - lateral compartment of the leg

Correctly matched

Explanation : Lateral compartment of leg contains fibularis brevis and fibularis longus

c.semimembranosus muscle - posterior compartment of the thigh

Not correctly matched

Explanation : Semimembranosus muscle are the medial most of three hamstring muscles and located posteromedially in thigh

d.pectineus muscle / femoral nerve - anterior compartment of the thigh

Correctly matched

Explanation : Pectineus muscle/formal nerve are the most anterior duct of hip. Its function is hip flexion.

e.obturator nerve - medial compartment of the thigh

Correctly matched

Explanation : Obtuarator nerve controls adduction and rotation of thigh and is part of medial compartment of thigh

f.sartorius muscle - anterior compartment of the thigh

Correctly matched

Explanation : Sartorius muccle is the longest muscle present in the anterior compartment of thigh

2.The gluteus medius and gluteus minimus muscles are homologous (similar in function) to which of the muscles of he shoulder region listed below:

a.supraspinatus muscle

b.infraspinatus muscle

c. teres minor muscle

d. levator scapulae muscle

Answer : a,b and c

Explanation : The function of gluteus medius and gluteus minimus muscle are

In case of shoulder bones, the similar functions are done by

3. What do the following muscles have in common: (obturator internus muscle, piriformis muscle, and iliopsoas muscle (combined function of the psoas major and iliacus muscles)

a. insertion onto the greater trochanter

b. lateral rotation of the femur bone

c. flexion of the femur bone

d. insertion onto the lesser trochanter

Answer :

The given muscles have insertion onto the greater trochanter and lateral rotation of the femur bone as common.

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