Cells

Question 1

mucous cells

Answer 1

• mucus
• most abundant, NOT goblet cells (found in intestines and respiratory tract)

Question 2

parietal (oxyntic) cells

Answer 2

• HCl, intrinsic factor
• Ach, gastrin, histamine
• gastric region of stomach

Question 3

chief cells (peptic)

Answer 3

•pepsinogen, gastroferrin

-pepsinogen –> pepsin at pH < 5

•gastric region of stomach

Question 4

enetroendocrine cells

Answer 4

•gastrin (stomach), secretin, CCK, GIP (large - rare - and small intestine)

Question 5

stem cells

Answer 5

• regeneration
• bases of glands

Question 6

enterocytes

Answer 6

• digetion, absorption, IgG transport
• small and large intestine

Question 7

Paneth cells

Answer 7

• lysozyme, other anti-microbials
• small intestine, large intestine proximal colon only

Question 8

goblet cells

Answer 8

• mucin
• small intestine

Question 9

M cells

Answer 9

• transfer antigens from lumen –> lymphoid follicle
• Follicle Associated Epithelium (FAE) of respiratory tract and small intestine

Question 10

Langerhans cells

Answer 10

• oral antigens –> lymphocytes
• stratified squamous epithelium

Question 11

ameleoblast cells

Answer 11

• secrete enamel
• lost on tooth eruption

Question 12

odontoblast cells

Answer 12

• secrete dentin
• pulp cavity

Question 13

cementocyte cells

Answer 13

•secret cementum

Question 14

serous cells

Answer 14

• synthesize amylase, lysozyme; transport ions, fluid and antibodies
• salivary glands - serous acini and demilune acini

Question 15

mucous cell

Answer 15

• secrete mucin
• salivary glands - mucus acini and demilune acini

Question 16

myoepithelial cell

Answer 16

• within basal lamina - contractile
• salivary glands

Question 17

intercalated duct cell

Answer 17

•salivary gland

Question 18

striated duct cell

Answer 18

• ion transport
• salivary glands

Question 19

excretory duct cell

Answer 19

•salivary gland

Question 20

G cell

Answer 20

• secrete gastrin
• GRP, amino acids, Ach (indirectly, Ach stimulates enteric cells to relase GRP)
• pyloric antrum of stomach

Question 21

S cells

Answer 21

• secrete secretin
• dudenum and jejunum

Question 22

K cells

Answer 22

• secrete GIP
• throughout small intestine

Question 23

L cells

Answer 23

• secrete GLP1
• throughout small intestine and upper colon

Question 24

I cells

Answer 24

• secrete CCK
• duodenum and jejunum

Question 25

enterochromaffin cell

Answer 25

* histamine * submucosa

Question 26

mucus vs. mucin

Answer 26

Mucus is a "slimy" material that coats many epithelial surfaces and is secreted into fluids such as saliva. It is composed chiefly of mucins and inorganic salts suspended in water. Mucins are a family of large, heavily glycosylated proteins.