Chapter 11 (The Muscular System XI)

Question 1

How are leg muscles divided ?

Answer 1

Divided by deep fascia into three compartments: Anterior
Lateral
Posterior (Superficial or Deep)

Question 2

Anterior compartment

Answer 2

Muscles the dorsiflex the foot

Question 3

Lateral compartment

Answer 3

Muscles that plantar flex & evert the foot

Question 4

Posterior compartment

Answer 4

Muscles are split between superficial and deep groups.

Superficial muscles share a common tendon of insertion, the calcaneal (Achilles) tendon.

Question 5

Anterior compartment muscles

Answer 5

Tibialis Anterior
Extensor Hallucis Longus
Extensor Digitorum Longus
Peroneus (Fibularis) Tertius

Question 6

Lateral compartment muscles

Answer 6

Peroneus Longus

Peroneus Brevis

Question 7

Superficial Posterior compartment muscles

Answer 7

Gastrocnemius
Soleus
Plantaris

Question 8

Deep Posterior compartment muscles

Answer 8

Popliteus
Tibialis Posterior
Flexor Digitorum Longus
Flexor Hallucis Longus

Question 9

Intrinsic Muscles of the Foot

Answer 9

Somewhat like those of the Hand
Quadratus Plantae deep to the Flexor Digitorum Brevis
Adductor Hallucis deep to the Quadratus Plantae