GI A&P

Question 1

acetylcholine, gastrin and histamine are hormones that stimulate____?

Answer 1

Gastric secretions

Question 2

intestinal secretions are stimulated by what hormone?

Answer 2

serotonin

Question 3

somatostatin, prostaglandins and secretin ________ gastric acid secretions

Answer 3

inhibit

Question 4

pepsinogen–> pepsin-> protein metabolism. works best in _________ environment

Answer 4

acidic

Question 5

why do the prostaglandins stimulate mucus bicarbonate production?

Answer 5

to form protective mucosal layer

Question 6

what part of the nervous system stimulates salivary production?

Answer 6

Parasympathetic nervous system

Question 7

during salivation what does ptyalin stimulate?

Answer 7

the digestion of CHO

Question 8

_________ is coordinated by medulla and controlled by _____ to promote a unidirectional flow.

Answer 8

swallowing ; sphincters

Question 9

what nerve controls gastric motility?

Answer 9

vagus nerve

Question 10

gastrin and cholecystokinin are hormones that facilitate what?

Answer 10

peristalsis

Question 11

what is secretin

Answer 11

inhibitory

Question 12

where does digestion occur?

Answer 12

in the stomach and proximal intestine

Question 13

what key nutrients are absorbed?

Answer 13

water, electrolytes, proteins, fat, minerals, vitamins,

Question 14

antimicrobial peptides, antibodies, immunoglobulin A and bacteria flora are all part of the GI tracts___?

Answer 14

immune defense

Question 15

which is the largest visceral organ?

Answer 15

liver

Question 16

where is the liver located?

Answer 16

under the R diaphragm

Question 17

hepatocytes consist of

Answer 17

endothelial cells, kupffer cells, macrophages and phagocytosis

Question 18

how does the liver absorb vitamin K

Answer 18

bile

Question 19

when glucose is converted to glycogen it is known as?

Answer 19

glucogenesis

Question 20

what does the liver secrete for fat emulsification and absorption?

Answer 20

bile