Salivary And GI Secretions

Question 1

Blood supplied to salivary glands is distributed by branches of what?

Answer 1

External carotid artery

Question 2

Salivary glands are ____ in origin?

Answer 2

Ectoderm all

Question 3

What in saliva begins initial digestion of carbohydrates?

Answer 3

Alpha-amylase

Question 4

What in saliva begins initial digestion of lipids?

Answer 4

Lingual lipase

Question 5

What in saliva is a protease involved in the production of bradykinin (vasodilator)?

Answer 5

Kallikrein

Question 6

K+ and HCO3- have _______ concentrations in saliva.

Answer 6

Higher

Question 7

Na+ and Cl- have ___________ concentrations in saliva.

Answer 7

Lower

Question 8

What produces the initial isotonic saliva?

Answer 8

Acinar cells

Question 9

Parasympathetics to the submandibular and sublingual glands are provided by what nerve and go through what ganglion?

Answer 9

Facial Nerve; submandibular ganglion

Question 10

Parasympathetics to the parotid gland are provided by what nerve and travel through what ganglion?

Answer 10

Glossopharyngeal nerve; Otic ganglion

Question 11

Sympathetic innervation of the salivary glands affect what?

Answer 11

Periarterial spaces (blood supply to the glands)

Question 12

Sympathetic innervation of the salivary glands originates from what spinal levels and travels through what ganglion?

Answer 12

T1-T3; Superior cervical ganglion

Question 13

What does the drug Omeprazole do to gastric parietal cells?

Answer 13

Inhibits H+/K+ ATPase therefore decreasing HCl secretion

Question 14

What 3 things regulate HCl secretion?

Answer 14

Ach, histamine, and Gastrin

Question 15

Histamine binds to what on parietal cells?

Answer 15

H2 receptors

Question 16

What blocks H2 receptors on parietal cells?

Answer 16

Cimetidine

Question 17

ACh binds to what on parietal cells?

Answer 17

M3 mAChR

Question 18

What blocks M3 mAChR on parietal cells?

Answer 18

Atropine