GIT ORGANIZATION POST TESTS by Dr. Castro Flashcards Preview

2ND SEM PHYSIO > GIT ORGANIZATION POST TESTS by Dr. Castro > Flashcards

Flashcards in GIT ORGANIZATION POST TESTS by Dr. Castro Deck (17)
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1
Q

GALT contribute to the immune function of GI tract. What is GALT?

A

Ans: Gut-associated lymphoid tissue

2
Q

2 layers of smooth muscle

A

Ans: inner layer- circular; outer- longitudinal

3
Q

3 Enzymes required for digestion:

A

Ans:
carbohydrate- amylase
lipids- lipase
proteins- proteases

4
Q

Location of sphincters:

A

Ans: upper esophageal sphincter, lower esophageal sphincter, pyloric sphincter, ileocecal sphincter

5
Q

What is the primary neural mechanism?

A

ENS

6
Q

Where can you see Meissner’s plexus?

A

Papillary layer

7
Q

Where is Auerbach’s plexus?

A

Myenteric plexus

8
Q

Primary site for absorption of nutrient

A

Small intestine

9
Q

Reabsorption of fluid and electrolyte

A

Large intestine

10
Q

GIT motility is unilateral smooth muscle except :

A

Ans: upper 3rd of esophagus, upper esophageal sphincter, external anal sphincter

11
Q

Problem with Hirschsprung’s disease

A

Ans: aganglionic part in large intestine

12
Q

Problem with achalasia:

A

Ans: failure of relaxation of LES

13
Q

Size of food that can pass through pylorus

A

Ans: 2mm

14
Q

Digestion in the brush border enzyme

A

Ans: membrane digestion

15
Q

Fluid load present in small intestine

A

Ans: 8-9L/day

16
Q

Ingestion of food initiates responses from endocrine, neural and paracrine. Differentiate the 3

A

Ans:

*Endocrine- release of transmitter *Neural- activation of nerves and neurotransmitters *Paracrine- sensor cell release transmitter affecting adjacent cells without entering blood or activating neurons

17
Q

Swallowing center is controlled by what nerve?

A

Ans: CN V, IX, X, XII- trigeminal, glossopharyngeal, vagus, hypoglossal