CPT Poultry Anatomy & Physiology

Question 1

What is the cloaca in poultry?

Accepted Answer

A common chamber where the digestive, urinary, and reproductive tracts converge and exit the body

Answer

The cloaca is a single terminal chamber that receives products from the digestive, urinary, and reproductive systems, all of which exit the body through a single opening called the vent.

Question 2

Which organ in the avian digestive system is equivalent to a glandular stomach and secretes hydrochloric acid and pepsin?

Accepted Answer

Proventriculus

Answer

The proventriculus is the glandular stomach of birds, responsible for secreting digestive enzymes and hydrochloric acid before feed passes to the muscular gizzard.

Question 3

What is the primary function of the bursa of Fabricius in young chickens?

Accepted Answer

It is a primary lymphoid organ responsible for B-lymphocyte (B-cell) maturation

Answer

The bursa of Fabricius is a cloacal lymphoid organ unique to birds where B-lymphocytes mature and differentiate, making it critical to humoral immunity in young poultry.

Question 4

How many chambers does the avian heart have?

Accepted Answer

Four — two atria and two ventricles

Answer

Like mammals, birds have a four-chambered heart with complete separation of oxygenated and deoxygenated blood, supporting their high metabolic demands.

Question 5

What is the primary function of the gizzard (ventriculus) in poultry?

Accepted Answer

Mechanical grinding and trituration of feed

Answer

The gizzard is a highly muscular organ that mechanically grinds feed, often aided by ingested grit, reducing particle size before further digestion in the small intestine.

CPT - Certified Poultry Technician Practice Test

CPT - Certified Poultry Technician Practice Test

CPT Poultry Anatomy & Physiology