GI Salivary/Gastric Secretions

Question 1

What kind of gland is the Parotid Gland?

Answer 1

1. Serous (lack mucin)

Question 2

What kind of glands are the Submandibular and Sublingual glands?

Answer 2

1. Mixed: Serous and Mucus

Question 3

Saliva pH?

Answer 3

8

Question 4

Saliva enzyme in charge of CHO digestion?

Answer 4

1. Alpha-amylase

Question 5

Following substances protect the lining of the stomach?

Answer 5

1. Mucin

2. HCO3-

Question 6

Oxyntic glands are composed by the following most important cells?

Answer 6

1. Parietal Cells

2. Chief Cells

Question 7

Parietal Cells are stimulated by the following substances?

Answer 7

1. ACh
2. Histamine
3. Gastrin

Question 8

Parietal cells secrete the following substances ?

Answer 8

1. HCl-

2. Intrinsic Factor

Question 9

IF is necessary for the absorption of ________ in the ___________?

Answer 9

1. Vitamin B12

2. Distal Ileum

Question 10

Pepsinogen is secreted by the following cells?

Answer 10

1. Chief Cells

Question 11

Pepsinogen —-> pepsin by the following substance?

Answer 11

1. H+

Question 12

Pepsin is necessary for the digestion of what substance ?

Answer 12

1. Proteins —-> peptides !!

Question 13

Hormone that inhibits Gastrin through negative feedback as pH 👀⬇️⬇️?

Answer 13

1. Somatostatin

Question 14

Why is enteric venous blood alkaline after a meal?

Answer 14

1. Because there’s an ⬆️demand of CO2 to be converted to —> H+ via C.A.