Digestive System

Front 1

organs or the digestive system are divided into 2 groups

Back 1

alimentary canal and accessory organs

Front 2

What is peristalsis

Back 2

wavelike contractions made by the organs in the alimentary canal to push food down through the tube

Front 3

what begins at the mouth and ends at the anus?

Back 3

alimentary canal

Front 4

list the accessory organs

Back 4

teeth, tongue, salivary glands, liver, gallbladder, pancreas

Front 5

exocrine secretions are released into __________. examples are____________

Back 5

body cavities, saliva, tears, sweat, digestive enzymes

Front 6

what is a bolus?

Back 6

a lump of grinded food in the mouth moistened by saliva

Front 7

What is amylase?

Back 7

a digestive enzyme in saliva that helps digest starch (carbohydrates)

Front 8

gastric glands in the stomach secrete ________and _____

Back 8

hydrochloric acid and pepsin (enzyme that breaks down proteins)

Front 9

pepin is secreted as_______and activated by

Back 9

pepsinogen, stomach acid

Front 10

Ulcers result when...

Back 10

there is insufficient mucus lining the stomach

Front 11

food leave the stomach in a pile of mush called____

Back 11

chyme

Front 12

Bile is produced in the ______ and stored in the _________. What does it do?

Back 12

liver, gallbladder. it breaks down fats in chyme

Front 13

How does bile break down fats?

Back 13

It emulsifies the fat by breaking them down into tiny pieces that mix well with chyme (hydrophilic). Lipases then digest the fat with the chyme

Front 14

What does the liver do aside from making bile?

Back 14

stores glycogen, produce glucose, metabolizes fats, produce blood proteins, stores vitamins and detoxifies the blood

Front 15

What enzymes do the pancreas secrete?

Back 15

amylase(carbohydrates), protease(proteins),lipase (fats)

Front 16

Is the pH in the intestines acidic?Why or why not?

Back 16

it is close to neutral because the pancreas secretes bicarbonate (a base that neutralizes chyme)

Front 17

Almost all digestion and absoption occur in _________-

Back 17

the small intestine

Front 18

how does the small intestine increase amount of absorption?

Back 18

having many internal folds

Front 19

What is the hepatic portal system?

Back 19

a system of capillaries (portal veins)that transport nutrients directly from the intestines to the liver.

Front 20

The large intestine is also called the ____and it does what?

Back 20

colon, reabsorbs water from chyme

Front 21

vitamin K is provided by ____________

Back 21

bacteria in the large intestine