Digestive Tract

Front 1

Mouth

Back 1

chews and mixes food with saliva

Front 2

Tongue

Back 2

Allows you to move food around and facilitate chewing

Front 3

Pharynx

Back 3

passageway from mouth to esophagus, directs food from mouth to there

Front 4

Epiglottis

Back 4

cartilage in throat that protects airway during swallowing

Front 5

Esophagus

Back 5

FOod pipe: connects mouth to stomach

Front 6

Lower esophageal sphincters

Back 6

allows passage from esaphagus to stomach

Front 7

Upper esophageal sphincter

Back 7

allows passage from mouth to esophagus

Front 8

stomach

Back 8

contains both rings and long muscles, grinds and churns swallowed food, mixing it with acid and enzymes to form chyme. force chyme downwards, when it is liquefied, chyme leaves

Front 9

pyloric sphincter

Back 9

allows passage from stomach to small intestine as well as prevents backflow from small intestine

Front 10

liver

Back 10

creates bile salts to help digest fats

Front 11

gallblader

Back 11

stores bile until needed

Front 12

bile duct

Back 12

conducts bile from gallbladder to small intestine

Front 13

appendix

Back 13

stores lymph cells

Front 14

small intestine

Back 14

secretes enzymes that digest all energy-yielding nutrients to smaller nutrient particles. cells of wall absorb nutrients into blood and lymph. major site of digestion and absorbtion of nutrients

Front 15

pancreas

Back 15

gland that secretes digestive enzymes and juices into the duodenum.
hormones and blood to help maintain glucose homeostasis

Front 16

duodenum

Back 16

top portion of small intestine

Front 17

jejunum

Back 17

first two/fifths of small intestine beyond duodenum

Front 18

ileum

Back 18

last segment of small intestin

Front 19

ileocecal valve (sphincter)

Back 19

allows passage from small to large intestine. prevents backflow

Front 20

pancreatic duct

Back 20

conducts pancreatic juice from pancreas to small intestine

Front 21

large intestine (colon)

Back 21

reabsorbs water and minerals, passes waste along with water to the rectum

Front 22

rectum

Back 22

stores waste prior to elimination

Front 23

bolus

Back 23

mouthful of food swallowed

Front 24

peristalsis

Back 24

when rings relax and contract and long muscles do the opposite, forcing the tube to bulge and chyme to be forced along

Front 25

bicarbonate/pancreatic juice

Back 25

basic, contains pancreatic juices to neutralize acidic chyme. has enzymes that act on fats, proteins and carbs

Front 26

emulsifier

Back 26

substance with both water=soluble and fat-soluble portions that promote mixing of oils and fats in a watery solution