Monotremes

Question 1

What quality make monotremes unique among mammals?

Answer 1

they lay shelled eggs (F8)

Question 2

What is the name of the large back muscle present in the platypus and echidna that facilitates rolling into a ball?

Answer 2

Panniculus carnosus (F8)

Question 3

What is the metabolic rate and temperature of monotremes compared to other mammals?

Answer 3

Lower metabolic rate and temperature (F8)

Question 4

What are some anatomic reasons that intubation is not possible in monotremes?

Answer 4

narrow oral cavity, small gape, difficulty visualizing the larynx, and presence of a keratinous pad on the dorsal surface of the base of the tongue in echidnas and a bulbous structure (torus linguae) at the base of the tongue in platypuses (F8)

Question 5

What is the most common venipuncture site in a platypus?

Answer 5

rostral tip of the bill (F8)

Question 6

What is the most common venipuncture site in an echidna?

Answer 6

A soft swelling on the dorsal surface of the echidna beak, just caudal to the nostrils (F8)

Question 7

Where does monotreme lactation occur?

Answer 7

expressed directly onto the skin of the abdomen in two areas called milk patches (F8)

Question 8

Name one anatomic difference between male and female platypuses (reproductive organs don’t count)

Answer 8

males have a venomos spur on each hindleg (F8, West)

Question 9

Describe the adult dentition of monotremes

Answer 9

No teeth, jsut a keratinousu pad (Terio)

Question 10

What is the cause of mycotic granulomatous dermatitis in the platypus?

Answer 10

Mucor amphibiorm (F8, Terio)