CCAT Canine Anatomy and Biomechanics 4

Question 1

The thoracolumbar fascia in dogs functions primarily to:

Accepted Answer

Transfer forces between the epaxial muscles and the hindlimbs

Answer

The thoracolumbar fascia acts as a passive tensile structure that transfers loads and forces between the epaxial muscles, hindlimbs, and spine during locomotion.

Question 2

Which nerve is responsible for innervating the flexors of the canine elbow (biceps brachii and brachialis)?

Accepted Answer

Musculocutaneous nerve

Answer

The musculocutaneous nerve innervates the biceps brachii and brachialis muscles, which are the primary flexors of the elbow joint.

Question 3

In canine biomechanics, the term 'ground reaction force' refers to:

Accepted Answer

The equal and opposite force the ground exerts on the dog's paw

Answer

Ground reaction force (GRF) is Newton's third law response — the equal and opposite force the ground exerts upward on the dog's foot in response to the dog's foot pushing down.

Question 4

The fibula in dogs is best described as:

Accepted Answer

A slender non-weight-bearing bone fused to the tibia distally

Answer

The canine fibula is a slender bone that bears minimal weight; it articulates with and is often fused to the tibia distally and helps form the ankle mortise.

Question 5

Which muscle group constitutes the 'hamstrings' in dogs and contributes to hip extension and stifle flexion?

Accepted Answer

Biceps femoris, semitendinosus, and semimembranosus

Answer

The canine hamstrings consist of the biceps femoris, semitendinosus, and semimembranosus, which extend the hip and flex the stifle as biarticular muscles.

CCAT Practice Test

CCAT Practice Test

CCAT Canine Anatomy and Biomechanics 4