Question

Which layers of the alimentary canal have nerve plexuses? select all apply

submucosa

muscular mucosa

lamina propria

muscularis externa

brush border enzyme are produced in the ?

a. stomach

b. pancrease

c.small intestine

d. large intestine

3. The cat has ________ lung lobes than the human; the cat has ________ teeth than the adult human

Answer 1

1. Which layers of alimentary canal have nerve plexuses?​​​​​​​

• Submucosa
• Muscularis externa

[The enteric nervous system consist of:

1. Myenteric or Auerbach's plexus present between circular and longitudinal layers of muscularis externa
2. Submucosal or Meissner's plexus present in the submucosa]

2. Brush border enzymes are produced in-

• c)Small intestine

[Brush border enzymes are present in the microvilli of the small intestine for digestion of carbohydrates

Though large intestine have enterocytes lined with microvilli, they donot posses brush border enzymes]

3. The cat has 1more lung lobes than the humans; the cat has 2 less teeth than adult humans.

[The cat have 4 right lung lobes and 2 left lung lobes whereas humans have 3 right lung lobes and 2 left lung lobes.

The cat have 30 teeth as adult unlike the 32 in humans]