Mouth and Esophagus Flashcards Preview

Physiology Exam V > Mouth and Esophagus > Flashcards

Flashcards in Mouth and Esophagus Deck (22):
1

Serous secretion

contains enzymes and water

2

Mucus secretion

contain water, electrolytes and mucin

3

how are water and salt secreted into lumen of salivary gland

Ach binds to muscarinin receptors, cause an influx of Ca++, secretion of Cl- into lumen through cl- channels and Na_ and water follow

4

function of IgA, lysozyme, lactoferrin

antimicrobial to help maintain oral hygiene

5

function of lingual lipas

fat digestion
only plays a minimal role in the mouth

6

function of mucus

lubrication, protection

7

function of water

taste, swallowing, speech

8

function of Na+, K+, Cl- bicarb

alkalization
bicarb neutralizes gastric acid

9

what is the primary stimulus that incrases salivary secretion

Ach

10

what happens when Ach binds to muscarinic receptors

increases Ca++ pathways which incrase salivary secretion

11

Where is striated muscle located

upper 1/3 of esophagus, oral cavity and upper esophageal spincter

12

where is smooth muscle located

lower 2/3rd of esophagus

13

what is GERD

reflux of gastric ontents into esophagus

14

what does GERD cause

inflammation of mucosal surface of esophagus which can lead to barrett's esophagus and cancer

15

What is dysphagia

difficulty swallowing

16

what is hiatal hernia

protrustion of stomach through diaphragm and into thorax

17

what does hiatal hernia cause

reflux

18

what does paresophageal hital hernia cause

reflux esophagitis, vascular disruption, ulcer, gallstone, pancreatitis, inflammation of gallbladder

19

Barrett's esophagus

replacement of squamous epithelial cells of esophagus with gastric like columnar cells

20

what is sjogren syndrome

autoimmune disease of salivary glands

21

what does sjogren syndrome cause

dry mouth, decreased salivary secretion

22

what is cystic fibrosis

impaired salivary secretion