QUIZ 8 MUSCLE ACTIONS

Question 1

dorsiflexes

inverts the foot (inverting the foot supinates the subtalar joint)

Answer 1

TIBIALIS ANTERIOR M.

Question 2

dorsiflexes / extends the lesser digits

aids in dorsiflexion and eversion of the foot (eversion of the foot causes pronation of the subtalar joint)

Answer 2

EXTENSOR DIGITORUM LONGUS M.

Question 3

dorsiflexes / extends the hallux at both the interphalangeal and metatarsophalangeal joints

aids in dorsiflexion of the ankle

Answer 3

EXTENSOR HALLUCIS LONGUS M.

Question 4

dorsiflexion of the foot

aids in eversion of the foot (pronating the subtalar joint)

Answer 4

FIBULARIS TERTIUS/PERONEUS TERTIUS M.

Question 5

everts and plantar flexes the foot (pronates the subtalar and midtarsal joints and plantar flexes the ankle joint)

stabilizes the first metatarsal during the propulsive phase of gait (rising on the toes and pushing forward)

Answer 5

FIBULARIS LONGUS/PERONEUS LONGUS M

Question 6

eversion and plantar flexion of the foot (pronation of the subtalar joint and flexion of the ankle joint)

Answer 6

FIBULARIS BREVIS/PERONEUS BREVIS M

Question 7

pronation of the subtalar joint

Answer 7

FIBULARIS QUARTUS/PERONEUS QUARTUS M.

Question 8

plantar flexion of the foot; flexion of the leg

Answer 8

GASTROCNEMIUS M

Question 9

aids in plantar flexion of the ankle joint;

aids in flexion of the knee joint

Answer 9

PLANTARIS M

Question 10

plantar flexion of the ankle joint

Answer 10

SOLEUS M

Question 11

medially rotates the leg (on the thigh) and flexes the leg

- these occur simultaneously when the knee is extended and is called unlocking the knee

Answer 11

POPLITEUS M

Question 12

plantar flexes the lesser digits

Answer 12

FLEXOR DIGITORUM LONGUS M

Question 13

plantar flexes the hallux
aids in inversion of the foot;
aids in plantar flexion of the ankle joint

Answer 13

FLEXOR HALLUCIS LONGUS M

Question 14

inverts and adducts the foot (inverting the foot supinates the subtalar and midtarsal joints)

aids in plantar flexing the ankle joint

Answer 14

TIBIALIS POSTERIOR M