CCAT Canine Anatomy and Biomechanics 3

Question 1

Which structure forms the roof of the vertebral canal and can hypertrophy to cause spinal cord compression in dogs?

Accepted Answer

Ligamentum flavum

Answer

The ligamentum flavum (yellow ligament) connects adjacent vertebral laminae and, when hypertrophied, can narrow the vertebral canal and compress the spinal cord.

Question 2

The popliteal lymph node in dogs is located in which anatomical region?

Accepted Answer

Caudal aspect of the stifle between the biceps femoris and semitendinosus

Answer

The popliteal lymph node sits in the popliteal fossa on the caudal aspect of the stifle, between the biceps femoris and semitendinosus muscles.

Question 3

During diagonal gait (trot), which limb pair moves simultaneously in dogs?

Accepted Answer

Left fore and right hind

Answer

During trotting, a diagonal gait, the left forelimb and right hindlimb move together, followed by the right forelimb and left hindlimb.

Question 4

Which muscle is the primary hip extensor in dogs and is analogous to the human gluteus maximus?

Accepted Answer

Biceps femoris

Answer

In dogs, the biceps femoris is the largest and most powerful hip extensor, taking over the role that gluteus maximus plays in bipedal humans.

Question 5

The cranial cruciate ligament in dogs resists which primary forces at the stifle?

Accepted Answer

Cranial tibial thrust and internal tibial rotation

Answer

The cranial cruciate ligament primarily resists cranial tibial thrust (forward sliding of the tibia relative to the femur) and internal rotation of the tibia.

CCAT Practice Test

CCAT Practice Test

CCAT Canine Anatomy and Biomechanics 3