44: Pigs

Question 1

Choose the MOST correct answer. Leydig cells in the boar produce?

a] Testosterone
b] Estrogen
c] Boars don’t have Leydig cells
d] Both A and B

Answer 1

d] Both A and B

Question 2

In pigs, which teeth are especially dangerous, necessitating detusking?

a] Maxillary incisors
b] Maxillary molars
c] Mandibular canines
d] Mandibular molars
e] Maxillary incisors and canines
Submit

Answer 2

c] Mandibular canines

Both mandibular canines are extracted in the detusking procedure.

Question 3

Pigs are very difficult to intubate in part due to which of the following?
1. The presence of ventral laryngeal diverticulum
2. A narrow dental arcade
3. The inability to open the mouth wide
4. Prominent rugae on the hard palate

a] 1 is correct.
b] 1 and 2 are correct.
c] 1, 2, and 3 are correct.
d] All are correct.

Answer 3

c] 1, 2, and 3 are correct.

The presence of rugae on the hard palate does not increase the difficulty of intubation. After entering the larynx (pig in sternal recumbency), the endotracheal tube (ETT) generally needs to be rotated so that the tip of the tube is directed dorsal over the laryngeal diverticulum and into the larynx. The mouth is difficult to open and the dental arcade is relatively close together.

Question 4

Which vessel is most appropriate for collection of 10 mL of blood from a healthy, mature sow?

a] Cranial vena cava
b] Saphenous vein
c] Auricular vein
d] Tail vein
e] Jugular vein

Answer 4

a] Cranial vena cava

The cranial vena cava is the preferred site for blood collection in adult pigs.

Question 5

In which of the following parts of the sow’s reproductive tract does fertilization occur?

a] Uterus
b] Vestibule
c] Uterotubular junction
d] Isthmus
e] Oviduct

Answer 5

e] Oviduct

Ova are fertilized in the oviduct