unit 5

Question 1

Uvula

Answer 1

keeps you from swallowing something too big

Question 2

Frenulum

Answer 2

holds down tongue

Question 3

Esophagus

Answer 3

Tube from pharynx to stomach
10 inches long
4 layers
Mucosa
Submucosa
Muscularis externa
Serosa

Question 4

Cardiosophageal Sphincter

Answer 4

The valve between the esophagus and stomach
Involved in heartburn

Question 5

Pyloric Sphincter

Answer 5

Valve that connects stomach and small intestine
Allows food to go to small intestine

Question 6

small intestine

Answer 6

23 feet long
Purpose: absorb nutrients
Filled with microvilli (tiny folds with little holes)
Three parts: duodenum, jejunum, ileum
Stays 3-6 hours

Question 7

large intestine

Answer 7

5 feet long
Purpose: reabsorbs water
Five parts: cecum, appendix, colon, rectum, anal canal

Question 8

microvilli

Answer 8

Tiny folds with little holes

Question 9

Pancreas

Answer 9

Makes a base solution which neutralizes stomach acid
Makes enzymes which break food into small segments
Makes insulin

Question 10

liver

Answer 10

Largest organ
4 lobes
Detoxifies blood
Die in 24 hours if it fails
Makes bile

Question 11

gallbladder

Answer 11

Small green sack
Stores and concentrates bile
Produces gallstones

Question 12

enamel

Answer 12

The hard outside layer of the tooth

Question 13

dentin

Answer 13

The chalky white stuff inside of the tooth; it makes up most of the tooth

Question 14

insulin

Answer 14

Allows sugar to go into cells