The digestive system

Question 1

Alimentary canal

Answer 1

A tube running through the body from the mouth to the anus

Question 2

Peristalsis

Answer 2

A coordinated motion of contraction between the longitudinal and circular muscles that moves food down the alimentary canal.

Question 3

Segmentation

Answer 3

A process of mixing that occurs in the small intestine

Question 4

Ingestion

Answer 4

The process by which food is taken into the alimentary tract.

Question 5

Salivary amylase

Answer 5

An enzyme that causes the initial breakdown of carbohydrates

Question 6

Rugae

Answer 6

Thick folds in the stomach lining that disappear when the stomach is full.

Question 7

Pyloric sphincter

Answer 7

Regulates the releasing of food from the stomach into the duodenum.

Question 8

Gastric pit

Answer 8

Small pores in the stomach where tubular gastric glands are found

Question 9

pepisnogen

Answer 9

Inactive form of digestive enzyme, converted to pepsin

Question 10

Parietal cells

Answer 10

Secrete hydrochloric acid and intrinsic factor

Question 11

intrinsic factor

Answer 11

important molecule to allow absorption of vitamin B12

Question 12

Pepsin

Answer 12

Converts protein to polypeptides

Question 13

gastrin

Answer 13

A hormone that is released to increase gastric gland secretion

Question 14

Pancreatic amylase

Answer 14

Produced in the pancreas and digests polysaccharides into disaccharides

Question 15

Pancreatic lipase

Answer 15

Produced in the pancreas and coverts fats and fatty acids to glycerol.

Question 16

Nucleases

Answer 16

Produced in the pancreas and digests DNA and RNA

Question 17

Bile

Answer 17

responsible for the emulsification (Break down) of fats.

Question 18

Billirubin

Answer 18

A waste product from the breaking down of red blood cells.

Question 19

mescentery

Answer 19

A double layer of peritoneal membrane between the peritoneal perineum and the visceral peritoneum.

Question 20

Greater omentum

Answer 20

A double fold of the peritoneum that covers the stomach, transverse colon, and the intestine to provide protection.

Question 21

Lacteal

Answer 21

Lymphatic capillary

Question 22

Nutrients

Answer 22

The chemicals supplied from the environment that an organism requires for survival.

Question 23

Triglyceride

Answer 23

Lipid composed of three fatty acids and a glycerol molecule

Question 24

minerals

Answer 24

inorganic elements that are essential for metabolism

Question 25

vitmains

Answer 25

organic compounds required in small amounts for normal metabolism.