Question 1

Which muscle is primarily responsible for flexing the thigh at the hip joint and is part of the iliopsoas group?

Accepted Answer

Psoas major

Question 2

A patient presents with difficulty extending the knee. Which muscle group is most likely impaired?

Accepted Answer

Quadriceps femoris

Question 3

Which muscle acts as a lateral rotator of the thigh and originates from the sacrum?

Accepted Answer

Piriformis

Question 4

The patellar ligament is a continuation of which tendon?

Accepted Answer

Tendon of quadriceps femoris

Question 5

Which muscle is NOT part of the hamstring group?

Accepted Answer

Rectus femoris

Question 6

A soccer player suffers an injury to the lateral compartment of the leg. Which movement is most likely affected?

Accepted Answer

Eversion of the foot

Question 7

Which muscle is the primary dorsiflexor of the foot?

Accepted Answer

Tibialis anterior

Question 8

The triceps surae is composed of which muscles?

Accepted Answer

Gastrocnemius and soleus

Question 9

Which muscle is responsible for flexing the great toe and is located in the deep posterior compartment of the leg?

Accepted Answer

Flexor hallucis longus

Question 10

A patient cannot abduct their thigh. Which muscle is most likely paralyzed?

Accepted Answer

Gluteus medius

Question 11

Which muscle supports the arch of the foot and is found in the first layer of the plantar aspect?

Accepted Answer

Abductor hallucis

Question 12

Which muscle is the only intrinsic muscle on the dorsal aspect of the foot?

Accepted Answer

Extensor digitorum brevis

Question 13

A runner experiences pain when flexing the knee and extending the hip. Which muscle group is most likely involved?

Accepted Answer

Hamstrings

Question 14

Which muscle originates on the fibula and inserts on the first metatarsal and medial cuneiform, playing a key role in eversion and plantarflexion?

Accepted Answer

Fibularis longus

Question 15

Which muscle is responsible for unlocking the knee joint during flexion?

Accepted Answer

Popliteus

Question 16

Which muscle is found in the third layer of the plantar aspect of the foot and flexes the proximal phalanx of the great toe?

Accepted Answer

Flexor hallucis brevis

Question 17

Which muscle group is primarily responsible for adducting the thigh?

Accepted Answer

Adductor longus, adductor brevis, adductor magnus

Question 18

A patient with foot drop is unable to dorsiflex the foot. Which nerve and muscle are most likely affected?

Accepted Answer

Deep fibular nerve and tibialis anterior

Question 19

Which muscle is responsible for flexing the lateral four toes and is located in the deep posterior compartment of the leg?

Accepted Answer

Flexor digitorum longus

Question 20

Which muscles are found in the fourth layer of the plantar aspect of the foot and are responsible for abducting and adducting the toes?

Accepted Answer

Plantar and dorsal interossei

Muscles of the Lower Limb: Structure, Function, and Compartmentalization

Study Guide - Practice Questions