Digestive System

Question 1

saliva contains what enzyme

Answer 1

salivary amylase

Question 2

alcohol in the stomach

Answer 2

can cross lining so it gets into the bloodstream quickly

Question 3

digestive system

Answer 3

Mouth > pharynx > asophagus > stomach > small intestine > large intestine

Question 4

epiglottis

Answer 4

closes to prevent food from going in

Question 5

second class lever

Answer 5

load is the middle between fulcrum and effort

Question 6

what kind of joint is the ankle joint

Answer 6

hinge joint

Question 7

first class lever

Answer 7

fulcrum or pivot point is located on the lever between effort and load

Question 8

third class lever

Answer 8

effort is in the middle between fulcrum and load

Question 9

trypsin

Answer 9

breaks down protein into amino acids

Question 10

3 parts of small intestine

Answer 10

duodenum, jejunum, ilium

Question 11

after food enters small intestine

Answer 11

mixes with pancreatic enzymes that break down carbs, protein and fat

Question 12

digestion times

Answer 12

meat and fish- up to 2 days

fruit and veg- less than a day

Question 13

what is poop

Answer 13

undigested food and fiber

Question 14

large intestine

Answer 14

• final stage of digestion
• partial breakdown of cellulose (soluable)
• reabsorbs water from undigested food

Question 15

center of villi

Answer 15

lacteal, connects to lymphatic system

Question 16

small intestine

Answer 16

• major site for digestion and absorption of nutrients
• 7 meters long
• transport nutrients to bloodstream
• water absorption

Question 17

pharynx

Answer 17

• part of digestive and respiratory

- epiglottis acts as a switch for food and air

Question 18

protein and fat breakdown

Answer 18

• pepsin breaks protein into smaller amino acids

- peptides and gastric lipase are released to break down short chain triglycerides into fatty acids and monoglycerides

Question 19

3 enzymes produced in pancreas

Answer 19

lipase, amylase, trypsin

Question 20

acid secretion

Answer 20

• controlled by nerve impulses and hormone gastrin in response to nerve impulses
• stimulated when you think about food

Question 21

asophagus

Answer 21

food pushed through by peristalsis

Question 22

pancreas

Answer 22

inferior and posterior to stomach, secretes digestive enzymes to small intestine

Question 23

peristalsis

Answer 23

rhythmic waves of muscles contraction which push food to stomach

Question 24

ulcers

Answer 24

too much acid or not enough mucus

Question 25

HCL in stomach can

Answer 25

dissolve stomach lining, other cells produce mucus to coat stomach

Question 26

aspirin can

Answer 26

be absorbed in the stomach, too much can cause irritation and bleeding

Question 27

gastric lipase

Answer 27

breaks down fats into fatty acids

Question 28

amylase

Answer 28

breaks down carbs into glucose

Question 29

how much does liver weigh

Answer 29

3lbs, second largest organ

Question 30

where is the liver

Answer 30

right of stomach, inferior to diaphragm, superior to small intestine

Question 31

surface of small intestine

Answer 31

• covered with villi and microvilli

- covered in capillaries for absorption

Question 32

how long does full digestion take

Answer 32

6-8 hours for food to pass to long intestine, but can stay in LI for up to 72 hours

Question 33

galbladder

Answer 33

stores and recycles excess bile from SI to be released

Question 34

liver’s function in digestion

Answer 34

production of bile acids and secretion into SI

Question 35

how big is stomach

Answer 35

empty- 15-30cm/50ml

can expand to 4 liters