Alimentary Controls

Question 1

What does the hormone CCK trigger?

Answer 1

The contraction of the gallbladder and the release of bile

Question 2

What are the 2 actions of saliva?

Answer 2

Chemical and mechanical

Question 3

What are 4 factors that affect saliva production?

Answer 3

Visual, olfactory, mechanical, and chemical

Question 4

What factor is the most significant in saliva production?

Answer 4

Chemical (taste of food)

Question 5

When does the cephalic phase of digestion occur?

What are its stimuli?

Answer 5

Occurs before food enters the stomach.

‘Head’ stimuli - includes mechanical (chewing), chemical (taste and smell), and psychic (visual and emotional)

Question 6

What phase activates gastric activity and what are 2 changes that occur as a result?

Answer 6

Gastric phase.

Stomach expands and pH increases.

Question 7

What are the 3 phases of gastric activity during the digestive process?

Answer 7

Cephalic phase

Gastric phase

Intestinal phase