Download Digestive System

Digestive System

made of a ________
o
_________ at both ends
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____ feet long

also called


o
______________ ___________
o
___________________ (GI) tract
technically food inside _____________ _______ is not __________ body
o
___________ through
o
if a person eats a quarter what happens?
function
o
___________ _________ or ____________ __________

______________ break down
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
_____________ broken down
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___________ of stomach
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____________ in mouth
o
_____________ food _____________ in walls of tube
o
food goes ____, has to come ____
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______________ _____________ is elimination organ
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
___________
feces aka “______”
food undergoes 3 kinds of processing in body
o
_______________
o
_______________
o
_______________
Wall of the digestive tract
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made of ______ layers of _________
o
mucosa or __________ _______________

esophagus – tough _______________
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remainder of _________ – delicate layer of ______________

o
_______________ and _______________
submucosa
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just below _______________
o

_______________tissue
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many blood _______________ and _______________
musclaris
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______ layers of muscle _______________
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creates rhythmic _______________
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
o
_______________
assists in _______________breakdown of food
serosa
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_______________ covering or coating
Mouth
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hallow ____________with __________, ___________, and __________
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_______________point of _______________
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lined with _______________ _______________
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roof
o
_______________ palate
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_______________ structure
_______________ palate
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mainly _______________
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connected to _______________
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_____________and _____________ ____________prevent food from entering
_____________ _____________
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floor
o
_______________
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_______________ muscle
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______________ connects tongue to ____________of mouth
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_______________ – elevations on tongue
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
o
contain taste buds
o
_______________
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_______________
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_______________
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_______________
largest are _______________type
also made of _______________
Teeth
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act of _______________ – _______________
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_______________types of teeth
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incisors
o
canines
o
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aka _______________
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_______________or tear food
premolars
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o
molars
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o
_______________
_______________
molars and _______________have flat _______________on the surface to
_______________and crush
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after food has been _______________it becomes a mass called a _______________
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_____ baby teeth
o
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_____ permanent teeth
o
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usually by _______________years
between _______________ years
teeth are _______________into _______________parts
o
crown
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exposed or _______________in mouth
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covered by _______________
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
_______________tissue in the body
two other _______________tissues
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dentin
o
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cementum
o
o
o
_______________ portion of tooth
_______________ and _______________areas
neck
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_______________ portion
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surrounded by _______________ tissue or ______________
root
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_______________ of jaw
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_______________ membrane

o
lines each tooth _______________
tooth _____________ is disease of _______________, _______________, and
_______________
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results in _______________
Salivary Glands
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_______________pairs
o
parotid
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_______________
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____________ and in ____________ of each ear at the angle of
_____________
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when people get _____________ becomes _____________
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you can see them by looking at the _____________ side of you ______________
second molar
o
submandibular
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sublingual
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on either _______________ of _______________
_______________ of mouth
saliva contains _______________ _______________
o
begins _______________ digestion of _______________
o
allows food to pass with less ___________ through _____________
Pharynx
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_______________
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lined with _______________ _______________
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part of _______________ and _______________ systems
Esophagus
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connects _______________ to _______________
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____ inches long
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_______________
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pushes _______________ towards _______________
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produces _______________ for easy _______________
Stomach
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just under _______________
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when empty as _______________ as a _______________
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large after a _______________
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o
_______________ after a large meal
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_______________ is pushing against _______________
food enters stomach through _______________ or _______________ _______________
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sphincter is a _______________ of _______________ tissue
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___________ sphincter keeps food from reentering ____________

o
_______________ inside of diaphragm allows _______________ to pass through
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if reenters – ______________ ____________disease (GERD)
if stomach bulges through hole ______________ ________________
food is broken down with _______________ _______________and _______________
_______________
o
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becomes _______________mixture called _______________
_______________ layers of _______________ muscle in the stomach wall
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oblique
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circular
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lengthwise – _______________
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makes the ______________ one of the _______________ muscles
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muscle _______________ in stomach called _______________
_______________ membrane lines stomach
o
contains _______________ glands
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secrete _______________ juice and _______________ acid
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when stomach is _______________, folds called _______________
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_______________ divisions of _______________
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fundus
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_______________ portion
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_____________ of and above opening of _______________ into
_______________
o
body
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_______________ part of _______________
pylorus
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_______________, _______________ part
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joins with _______________ _______________
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_______________ digestion of food by _______________ _______________
muscle
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_______________ _______________ border of stomach is _______________ curvature
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_______________ _______________ border _______________ curvature
Small intestine
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_____________feet long
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smaller in _____________than _____________intestine
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_____________different sections
o
_____________
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C – _____________
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_____________around head of _____________
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site of frequent _____________
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____________place acid ____________enters
contains site for ducts to empty _____________ digestive juice and
_____________ from the _____________
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o
jejunum
o
ileum
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_____________ duodenal papillae
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_____________ duodenal papillae
mucous lining contains _____________ glands
o
secrete intestinal _____________ juice
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not _____________
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arranged in _____________ folds called _____________
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plicae have tiny “_____________” called _____________
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project into _____________ of small intestine
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_____________
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_____________ network of _____________ capillaries
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Liver
o
_____________ proteins and _____________
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increases _____________ _____________
contain a _____________
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small _____________vessel
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absorbs _____________ and _____________ materials
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fills entire _____________ _____________ section of the body
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secretes _____________
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_____________ gland
o
largest _____________ in the body
liver -> _____________ and _____________ hepatic duct -> common _____________ duct ->
common _____________ duct -> _____________
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bile
o
contain _____________ and bile _____________
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_____________up or _____________fats
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_____________are in large _____________
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_____________ is also lost in _____________
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way for body to get rid of _____________
primary functions
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_____________ fats
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_____________ cholesterol
Gallbladder
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_____________ bile in-between _____________
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_____________in _____________ trigger a release of the hormone cholecystokinin (CCK) in the
_____________
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then stimulates _____________ of _____________
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_____________ goes into small intestine
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gallstones block _____________ _____________ duct
o
liver -> _____________-> cystic _____________ XXX common bile duct -> duodenum
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_____________ appear gray-_____________
o
_____________ amounts of bile are absorbed in _____________
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results in _____________skin discoloration
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_____________
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also occurs when _____________ _____________ duct is blocked
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if cystic duct is blocked no _____________
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why?
Pancreas
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lies _____________ stomach
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_____________ gland
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secretes _____________ juice
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most _____________ digestive juice
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contain _____________ that digest 3 major types of _____________
_____________ gland
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secretes _____________ into blood
Large Intestine
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_____________ feet
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_____________ and _____________ food
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passes from small intestine through _____________ _____________
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food in no longer _____________ , a “soupy” mixture
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changes to the _____________ of fecal _____________
o
_____________ is absorbed
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_____________ matter acted upon by _____________
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normal passage _____________ days
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rate _____________
o
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_____________
rate _____________
o
_____________
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even more _____________ is removed
o
reduces bowel emptying _____________
cecum -> _____________ colon -> _____________ colon -> _____________ colon ->
_____________ colon -> _____________ -> _____________ canal
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_____________ sphincter muscles stay _____________ to keep anus _____________ except
during defecation
o
_____________ anal sphincter
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o
_____________
_____________ anal sphincter
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_____________
Appendix
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no _____________ functions in humans
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_____________ tissue
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minor role in _____________mechanisms
o
_____________– appendicitis