ALAT Animal Health and Biology 4

Question 1

Which clinical sign most strongly suggests a mouse is experiencing respiratory distress?

Accepted Answer

Open-mouth breathing with extended neck

Answer

Open-mouth breathing with neck extension indicates severe respiratory compromise requiring immediate veterinary attention.

Question 2

The cecum in rabbits serves which primary digestive function?

Accepted Answer

Microbial fermentation of plant fiber

Answer

The rabbit cecum houses a large microbial community that ferments cellulose and produces volatile fatty acids essential for nutrition.

Question 3

A technician notices a rat has hunched posture, piloerection, and half-closed eyes. These signs collectively indicate:

Accepted Answer

Pain or general malaise

Answer

Hunched posture, piloerection, and half-closed eyes (the rat grimace scale indicators) are recognized signs of pain and distress.

Question 4

What is the correct term for the surgical removal of the ovaries and uterus in laboratory animals?

Accepted Answer

Ovariohysterectomy

Answer

Ovariohysterectomy refers specifically to the removal of both ovaries and the uterus, providing complete reproductive sterilization.

Question 5

Which of the following best describes the function of neutrophils in the immune response?

Accepted Answer

Phagocytizing bacteria as a first-line defense

Answer

Neutrophils are the primary phagocytic cells of innate immunity, rapidly migrating to infection sites to engulf and destroy bacteria.

ALAT - Assistant Laboratory Animal Technician Practice Test