Lp 35

Question 1

-mucosa-lined cavity
-physical & chemical digestion

Answer 1

Mouth

Question 2

-incisors
-canine (cuspids/eye-teeth)
-premolars (bicuspids)
-molars

Answer 2

Teeth

Question 3

-mechanical digestion
-special sense organ

Answer 3

Tongue

Question 4

-mixing foods;food & saliva
-pushing bolus to back of mouth
-imitating swallowing

Answer 4

Tongue functions

Question 5

Salivary glands activated by

Answer 5

-ingestion
-sight
-smell
-though of food

Question 6

Chemical digestion begins in mouth?

Answer 6

Break down of carbs

Question 7

-food into esophagus
-air into trachea

Answer 7

Pharynx

Question 8

-posterior to trachea
-food to stomach
-collapsed when not in use
-

Answer 8

Esophagus

Question 9

Esophagus connected to stomach at lower?

Answer 9

Esophageal *sphincter
Aka Gastroesophageal/cardiac

Question 10

Actively moves food along

Answer 10

Peristalsis

Question 11

-thick muscular organ:
-mechanical digestion: forceful contractions of smooth m
-chemical digestion

Answer 11

Stomach

Question 12

Food into stomach causes secretion of?

Answer 12

Enzymes & HCI into stomach lumen

Question 13

HCI activates enzymes?

Answer 13

Activated enzymes-digestion of proteins & some lipids

Question 14

Initial site of limited absorption

Answer 14

Stomach

Question 15

Small intestine 3 sections

Answer 15

-duodenum
-jejunum
-ileum

Question 16

Enzymatic secretion

Answer 16

Duodenum

Question 17

-final sites of digestion
-major sites of absorption

Answer 17

Jejunum & ileum

Question 18

Breakdown products absorbed in?

Answer 18

SI

Question 19

Large intestine aka colon & rectum 3 segments

Answer 19

-ascending colon
-transverse colon
-descending colon

Question 20

Wider and shorter than SI
-absorbs h2O & electrolytes
Eliminates waste
Bacteria: complete digestion & produce vit. B & K

Answer 20

Large intestine

Question 21

-triggered by reflex
-controlled voluntarily by CNS

Answer 21

Large intestine defercation

Question 22

-closing of glottis
-contraction of diaphragm & abdominal muscles
-levator ani

Answer 22

Defecation requires skeletal mm

Question 23

Salivary glands 3 pairs

Answer 23

-parotid
-submandibular
-sublingual

Question 24

-cleanses mouth
-moistens & dissolves food
-chemical digestion of carbs

Answer 24

Saliva Fxn

Question 25

-largest gland in body -major metabolic center -bile production (contains bile alts that emulsify lipids

Answer 25

Liver

Question 26

-thin-walled sac -in shallow fossa under liver -concentrates & stores bile

Answer 26

Gallbladder

Question 27

Dural function: -exocrine: production/secretion of digestive enzymes -endocrine: production/secretion of insulin & glucagon (regulate blood sugar levels)

Answer 27

Pancreas

Question 28

Digestive secretions from pancreas & gallbladder enter duodenum via

Answer 28

Common duct

Question 29

-breaks food down -mixes food w/ digestive juices

Answer 29

Mechanical digestion

Question 30

Reduces food to absorbable nutrients

Answer 30

Chemical digestion

Question 31

Function of smooth mm

Answer 31

Motility (peristalsis)

Question 32

-nutrients brought into body & delivered to cells for use

Answer 32

Assimilation

Question 33

Assimilation involves 3 processes

Answer 33

-absorption -metabolic conversion -transport

Question 34

Specific enzymes break chemical bonds & reduce large molecules

Answer 34

Chemical enzymes

Question 35

enzymes are sensitive to?

Answer 35

-temp -pH -electrolytes

Question 36

Accessory glands in GI tract are exocrine?

Answer 36

-salivary -pancreas -gallbladder/ liver

Question 37

Exocrine glands in stomach & intestines secrete digestive juices into

Answer 37

Lumen

Question 38

Secretions into GI tract at

Answer 38

-mouth (saliva) -stomach (gastric juice) -duodenum (bile & pancreatic juice) -intestine (intestinal juice)