Chapter 24 Part 2

Question 1

Mucosa is dotted with ________ _______.

Answer 1

Gastric pits

Question 2

Each gastric pit communicates with several _______ _______.

Answer 2

Gastric glands

Question 3

Gastric glands are dominated by two types of secretory cells;

Answer 3

Parietal cells and chief cells

Question 4

Parietal cells secrete ________ and ___________.

Answer 4

Intrinsic factor and hydrochloric acid (HCL)

Question 5

Chief cells produce _____________.

Answer 5

Pepsinogen

Question 6

G cells produce___________.

Answer 6

Gastrin

Question 7

Gastrin stimulates _________ and ___________

Answer 7

Chief and parietal cells

Question 8

New born infants’ stomach produce ________ and _______.

Answer 8

Rennin and gastric lipase

Question 9

These two enzymes help infants digest milk.

Answer 9

Rennin and Gastric lipase

Question 10

Kills microbes, stops action of amylase and activates lipase from saliva.

Answer 10

HCL

Question 11

Activates pepsin and activates hormones for secretion of bile and pancreatic enzymes.

Answer 11

HCL

Question 12

Stomach empties into ________ 2-6 hours after eating.

Answer 12

Duodenum

Question 13

_______ Phase

Phase initiated by smell, taste, or thought of food.
Cerebral cortex and hypothalamus sends signals to medulla.
Impulse is sent along vagus nerve to stomach to begin secretion.

Answer 13

Cephallic

Question 14

Gastric Phase

Phase initiated by _______ receptors and chemoreceptors.
Controlled through negative feedback.
Contractions of stomach causes some chyme to be ejected into duodenum.
As chyme leaves, pH and distension decreases, therefore less secretions.

Answer 14

stretch

Question 15

________ Phase

Phase that functions to prevent overfilling of duodenum.
Initiated by receptors in duodenum.
Has inhibitory effect on the stomach and its secretions.
Serves to inhibit secretion, smooth muscle contraction, and stomach emptying.

Answer 15

Intestinal

Question 16

Lies beneath stomach, empties into duodenum, and has enzymes involved in carbohydrate, protein, fat, and nucleic acid.

Answer 16

Pancreas

Question 17

Largest gland in the body, contains hepatocytes, maintains blood glucose level, and stores some fats and makes cholesterol.

Answer 17

Liver

Question 18

The liver de-aminates amino acids, removes drugs and

_______, stores vitamins and glycogen.

Answer 18

hormones

Question 19

Contains water, bile salts, cholesterol, bile pigments, ions. Main pigment is bilirubin.

Answer 19

Bile

Question 20

Small sac under liver, stores and releases bile, releases contents into cystic duct empties into duodenum.

Answer 20

Gallbladdder

Question 21

3 segments of small intestine.

Answer 21

Duodenum, jejunum, ileum.

Question 22

2 types of muscular movement in small intestine

Answer 22

Segmentations and MMCs

Question 23

Begins in mouth;enzymes break down polysaccharides into simple sugars fro absorption.

Answer 23

Carbohydrate digestion

Question 24

Four pancreatic enzymes that finish protein digestion begin in stomach.

Answer 24

Protein digestion

Question 25

Bile salts emulsify fats and enzymes break triglycerides down into fatty acids and glycerol.

Answer 25

Lipid digestion

Question 26

Nucleic acid digestion is the nucleus that break down nucleus acids down into ____________.

Answer 26

nucleotides

Question 27

Intestinal hormone that increases bile secretion

Answer 27

Secretin

Question 28

Chloecytokinin (CCk) __________ the production and secretion of all digestive enzymes.
Helps release bile.

Answer 28

accelerates

Question 29

In small intestine, carbohydrates are absorbed as monosaccharides and proteins are absorbed as ________ and __________.

Answer 29

amino acids

small polypeptides

Question 30

4 parts of the colon

Answer 30

Ascending, transverse, descending, and sigmeidal.

Question 31

Large intestine is separated from small intestine by ________

Answer 31

Ileocecal valve

Question 32

Mucosal layer of large intestine has ___ villi and _____ goblet cells.

Answer 32

No, many

Question 33

Longitudinal layer of muscularis is reduced to 3 bands of muscle called _______________

Answer 33

Teniae Coli