Exam 3 - Digestion - Non-ruminants

Question 1

Intestinal accessory organs

Answer 1

Salivary glands, liver, pancreas

Question 2

Gastrointestinal motility

Answer 2

Smooth muscle in the wall of gastrointestinal tract provides the force to move digests through the tract

Question 3

Another name for swallowing

Answer 3

Deglutition

Question 4

Three stages of deglutition

Answer 4

1. Passage of food or water through the mouth
2. Passage through the pharynx
3. Passage through esophagus into the stomach

Question 5

Where mechanical digestion starts

Answer 5

Saliva and chewing

Question 6

Enzyme in saliva responsible for antibacterial action

Answer 6

Lysozyme

Question 7

Enzyme in saliva responsible for starch digestion (absent in ruminants and carnivores)

Answer 7

Amylase

Question 8

Saliva and salivary glands contain

Answer 8

Water, mucus, electrolytes and enzymes

Question 9

Three mechanisms that regulate gastrointestinal motility

Answer 9

1. Autonomic nervous system
2. Gastrointestinal hormones
3. Enteric nervous system

Question 10

_________ is the alternate relaxation and contraction of rings of muscle in the wall coupled with regional contraction of longitudinal muscles in the area of the bolus

Answer 10

Peristalsis

Question 11

__________ (emesis) is a protective response to remove potentially harmful ingest from the stomach and small intestine

Answer 11

Vomiting

Question 12

Gastric juice

Answer 12

Combination of substances secreted into he stomach lumen by gastric glands and epithelial cells of the stomach mucosa

Question 13

What does gastric juice contain

Answer 13

Water, hydrochloride acid, mucus, intrinsic factor, pepsinogen, and rennin

Question 14

Gastric juice regulation has three phases