Digestion

Question 1

epithelial tissue

Answer 1

covers surfaces of the body

Question 2

connective tissue

Answer 2

supports and protects

Question 3

muscle

Answer 3

permits movement

Question 4

nervous

Answer 4

transmits nerve impulses

Question 5

lysozyme

Answer 5

break down bacteria

Question 6

mucus

Answer 6

lubricates and hold bolus together

Question 7

amylase

Answer 7

breaks down starch

Question 8

last function of saliva

Answer 8

enhance perception of flavor

Question 9

epiglottis function

Answer 9

close over the larynx to prevent food from entering the trachea

Question 10

upper esophageal sphincter

Answer 10

muscular tube that extends to the stomach

Question 11

gastric rugae

Answer 11

allow stomach to expand when food enters
increase surface area for absorption

Question 12

glucose-dependent insulinotropic peptide

Answer 12

slow the release of chyme into the small intestine

Question 13

liver

Answer 13

• produces bile
• aids in fat digestion and absorption by acting as emulsifier

Question 14

pancreas

Answer 14

• sodium bicarbonate (neutralizes acidic chyme)
• lipases
• proteases
• amylase

Question 15

gallbladder

Answer 15

• bile storage

Question 16

segmentation

Answer 16

• inner circulation muscles contract in small intestine
• back and forth action
• mix chyme with digestive juices
• chyme in contact with absorbing cells

Question 17

peristalsis

Answer 17

• coordinated wave of contraction and relaxation
• outer longitudinal muscles push chyme forward

Question 18

enterocytes

Answer 18

• most abundant in SI
• “brush border” - lined with microvilli
• secrete enzymes and absorb nutrients

Question 19

goblet cells

Answer 19

• mucus secretion in SI

Question 20

enteroendocrine

Answer 20

secrete hormones in SI

Question 21

paneth

Answer 21

• synthesize and secrete antimicrobial peptides and proteins in SI