COF Human Anatomy & Physiology 3

Question 1

During the swing phase of gait, which muscle primarily responsible for dorsiflexion must contract concentrically to clear the foot from the ground?

Accepted Answer

Tibialis anterior

Answer

Tibialis anterior contracts concentrically during swing phase to dorsiflex the ankle and ensure adequate toe clearance.

Question 2

The medial collateral ligament of the knee primarily resists which force?

Accepted Answer

Valgus stress

Answer

The medial collateral ligament (MCL) is the primary restraint against valgus stress at the knee joint.

Question 3

Which vertebral level corresponds to the umbilicus dermatome, a key reference in spinal cord injury classification?

Accepted Answer

T10

Answer

T10 dermatomal level corresponds to the umbilicus and is a standard neurological landmark for assessing thoracic spinal cord injuries.

Question 4

What type of joint is the distal tibiofibular syndesmosis?

Accepted Answer

Fibrous syndesmosis

Answer

The distal tibiofibular joint is a fibrous syndesmosis held together by the anterior and posterior tibiofibular ligaments and the interosseous membrane.

Question 5

The thoracolumbar fascia is biomechanically significant for orthotic management because it:

Accepted Answer

Prevents lumbar flexion by acting as a posterior tension band

Answer

The thoracolumbar fascia functions as a posterior tension band that resists lumbar flexion and transfers loads between the trunk and lower extremities.

(COF) Certified Orthotic Fitter Practice Test

(COF) Certified Orthotic Fitter Practice Test

COF Human Anatomy & Physiology 3