CCAT Anatomy & Physiology 3

Question 1

In feline anatomy, which vertebral region typically has the greatest number of vertebrae compared to dogs?

Accepted Answer

Caudal/coccygeal

Answer

Cats typically have more caudal vertebrae (20-23) than dogs (20-23 variable), with the tail being proportionally longer and more mobile in cats.

Question 2

Which structure forms the floor of the vertebral canal and directly contacts the intervertebral discs in dogs?

Accepted Answer

Dorsal longitudinal ligament

Answer

The dorsal longitudinal ligament lines the floor of the vertebral canal and is in direct contact with the dorsal surface of intervertebral discs.

Question 3

What type of muscle fiber predominates in postural muscles responsible for prolonged low-intensity activity in companion animals?

Accepted Answer

Type I (slow-twitch oxidative)

Answer

Type I slow-twitch oxidative fibers are fatigue-resistant and predominate in postural muscles requiring sustained, low-intensity contractions.

Question 4

During the canine gait cycle, the 'swing phase' refers to which portion of limb movement?

Accepted Answer

When the limb is lifted and moving forward off the ground

Answer

The swing phase is the period when the paw is off the ground and the limb advances forward in preparation for the next stance phase.

Question 5

Which layer of the joint capsule is responsible for producing synovial fluid in companion animals?

Accepted Answer

Synovial membrane (stratum synoviale)

Answer

The synovial membrane (inner layer of joint capsule) contains synoviocytes that produce synovial fluid for lubrication and nutrition.

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