CPA Animal Anatomy & Physiology 5

Question 1

What is the name of the four-chambered stomach compartment in ruminants where most protein and starch digestion occurs?

Accepted Answer

Abomasum

Answer

The abomasum is the 'true stomach' of ruminants where gastric acid and enzymes digest proteins and starches like in monogastric animals.

Question 2

In poultry anatomy, what is the function of the crop?

Accepted Answer

Temporarily storing and softening ingested food

Answer

The crop is an expandable pouch in the esophagus of birds that stores food and softens it with moisture before it passes to the stomach.

Question 3

Which component of blood plasma is primarily responsible for maintaining osmotic pressure?

Accepted Answer

Albumin

Answer

Albumin is the most abundant plasma protein and is the primary contributor to colloid osmotic pressure that keeps fluid in the bloodstream.

Question 4

What is the term for the junction between a motor neuron and a muscle fiber?

Accepted Answer

Neuromuscular junction

Answer

The neuromuscular junction is the specialized synapse where a motor neuron releases acetylcholine to trigger muscle contraction.

Question 5

In large animal anatomy, what is the 'dewclaw' and where is it located?

Accepted Answer

A vestigial toe found on the caudal aspect of the lower limb

Answer

The dewclaw is a vestigial digit located on the caudal aspect of the lower leg, above the main hooves in cattle and other species.

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