ch10

Which of the following muscles may be palpated on the upper one-half of the posterior aspect of the lower leg?

Gastrocnemius

Proximal interphalangeal joint motion occurs about the _____ axis.

frontal

Triceps surae refers to the _____.

gastrocnemius and soleus

The flexor hallucis longus performs which of the following actions?

All of the answers are correct.

Which of the following muscles does not perform plantar flexion?

Peroneus tertius

Which of the following muscles only performs plantar flexion?

Soleus

Which of the following muscles can perform flexion of the great toe when concentrically contracting?

Flexor hallucis longus

Which of the following muscles can perform knee flexion when concentrically contracting?

Gastrocnemius

Which of the following statements is not true regarding "shin splints"?

May be partially prevented by stretching the plantar extensors

The soleus muscle can perform muscular actions only in the sagittal plane.

true

Inversion is turning the ankle and foot outward away from the midline of the body where the weight is on the medial edge of foot.

false

The medial malleolus is an anatomical landmark located on the fibula.

false

Pronation is a combination of ankle dorsiflexion, subtalar eversion, and forefoot abduction.

true

The tibialis anterior muscle performs dorsiflexion of the ankle in the sagittal plane.

true

Which of the following muscles can perform extension of the great toe when concentrically contracting?

Extensor hallucis longus

Which of the following muscles can perform flexion of the four lesser toes when concentrically contracting?

Flexor digitorum longus

Which of the following muscles has its insertion on the base of the distal phalanx of each of the four lesser toes?

Flexor digitorum longus

Which of the following muscles does not perform eversion of the foot?

Flexor hallucis longus

Which of the following is the correct order starting from the most posterior aspect of the distal lower leg/ankle and moving medially?

Flexor hallucis longus, flexor digitorum longus, tibialis posterior

Which of the following muscles has its insertion on the posterior surface of the calcaneus?

Soleus

Which of the following muscles can perform inversion of the foot when concentrically contracting?

Tibialis anterior

Which of the following is not considered to be a muscular compartment of the lower leg?

Medial compartment

Which of the following muscles has its insertion on the base of the 5th metatarsal?

Peroneus tertius

Which of the following muscles has its origin on the distal third of the anterior fibula?

Peroneus tertius

Which of the following muscles is included in the anterior compartment?

Peroneus tertius

Which of the following muscles can perform extension of the lesser toes when concentrically contracting?

Extensor digitorum longus

An ankle sprain is a common injury that involves the stretching or tearing of one or more tendons.

false

During both walking and running, there is a point where neither foot is touching the ground.

false

Each toe has three interphalangeal joints, except for the great toe, which has only two.

false

Immediately prior to and during normal toe-off, the foot should be in pronation and the leg should be in external rotation.

false

The most prominent tendon crossing the ankle anteromedially and the easiest to palpate is the _____.

tibialis anterior

Dorsiflexion is the dorsal aspect of the foot moving toward the anterior tibia.

true

Each toe has three phalanxes, except for the great toe, which has only two.

true

Heel-strike normally occurs by landing on the heel with the foot in supination and the leg in external rotation.

true

Motions of the metatarsophalangeal joints of toes include flexion, extension, abduction, and adduction.

true

The ankle and foot joints are composed of 26 bones in each foot.

true

The distal malleoli of the tibia and fibula serve as pulleys for the posterior tendons to increase the mechanical advantage of the respective muscles in performing inversion and eversion actions.

true

The extensor hallucis longus muscle can perform weak inversion of the foot.

true

Toe flexion is movement of toes toward the plantar surface of the foot.

true