Ch 17 Digestive System Flashcards
Exam 2
Digestive system carries out what processes?
(hint: Id Die Apple Pie)
Id Die Apple Pie
mechanical, chemical, ingestion, propulsion, adsorption, defecation
A system that includes the mouth, tongue, teeth, pharynx, salivary glands, esophagus, stomach, liver, pancreas, gall bladder, small intestine, and large intestine.
Digestive System
Another name for gastrointestinal tract
Alimentary Canal
What is included in the alimentary Canal ?
-Mouth
-Pharynx
-Esophagus
-Stomach
-Small intestine
-Large Intestine
-Anal canal(anus)
-rectum
What does the Mucosa membrane secret and absorb?
ABSORB: Dietary nutrients
SECRETS: mucus, enzymes
What is included in the accessory organs?
-Salivary Glands
-Pancreas
-Liver
-Gallbladder
What does the gallbladder store
Bile
lumen
The space inside structure, such as where blood is transported within a blood vessel
Describe the three stages in the swallowing mechanism
1st stage(skeletal muscle)
Voluntary, mastication occurs, physical breakdown of foods
breakdown of Azucar
Bolus FORMED
2nd stage(skeletal muscle)
Involuntary, actual swallowing occurs
3rd Stage
involuntary bolus traveling down esophagus to stomach
NO enzymes are created here
Most nutrients are absorbed in the _____________
Small intestine
________ are rings that prevent food from going back
Sphincter
which nervous system action influences the INCREASE of the digestive system
PARA sympathetic
What does the Bicarbonate secretion do in the pancreas
It makes the acidic content coming from the stomach neutral
What is the pancreatic juice made of?
Trypsin
Lipase
Amylase
Bicarbonate?
What is the function of the serosa layer?
To reduce friction
Describe the differences between peristalsis and segmentation
Peristalses moves in one direction, while segmentation creates a churning motion for the mixture of contents “back/foward movement”
What is the function of the digestive enzymes & ions each pancreatic juice?
(Anne Smiles Gladly Daily
Lilly Tries but Frowns
Thomas Poops
+1more)
Amylase-breakdown of Starch (CARBS)
Lipase- breakdown of triglycerides fats
Trypsin- The break down of PROTEINS
ANNNNND
Bicarbonate ion- neutralize stomach acid thats on the chyme
the nasopharynx is ___ part of the digestive system
NOT
The ____ MAKES bile while the ______ STORES bile
Liver; gallbladder
Bile is an enzyme
True or False
FALSE
The _____ is the largest salivary gland
PARO - TID
_____ is the outermost layer
SER O SA
Teeth is not part of the skeletal system
True or False
TRUE
The first teeth during childhood are called
Primary or deciduous (20 count)
The new pair of teeth you get after milk teeth is called?
Secondary(permanent) teeth
What is not part of the gastrointestinal system?
LIVER
______ is the conical projection from posterior soft palate
uvula
- basically uvula is right at the end tip of the soft palate, the soft palates extension*
The transport of digested food into the blood of lymph is ________
Absorption
_________ system ingests food, propels food, mechanically and chemically breaks down food, absorbs nutrients, and defecates the remainder
DIGESTIVE
DUHHH
what are the functions of the large intestine?
ABSORPTION of
water
Electrolytes
vitamins
Define Deamination
major step in extracting energy from proteins
_______ is the boundary between the skinof the face and the mucous membrane inside the mouth
LIPS yall
lips yall
The # of teeth in the moth is called?
Dentition
2 types of salivary SECRETIONS their function, are they a digestive enzyme, and characteristic
Salivary SECEREtions
Serous CELLS
salivary amylase
DIGESTIVE ENZYME (breaks down sugars)
is watery
Mucous CELLS
Binds foods + lubricates
mucus
NOT digestive enzyme
What parts in the oral cavity move ,close, ect. describe them pwease 0w0 in stage 2 which is swallowing
soft palate + uvula RISEgo up
Why? so no food goes into the nasal cavity
Hyphiod bone + larynx rise = epiglottis flap to close
why? No food into the trachea
__________ completes the breakdown of food, performs complete absorption
a. Small intestine b. large intestine
SMALL intestine
The ______ is a thick, muscular organ that occupies the floor of the mouth and nearly fits the oral cavity
TOnGUE
The tongue literally takes up the whole space of the oral cavity doyy
The pharynx is commonly known as the
Throat
Which of the pharyngeal regions serve as part of the digestive passageway?
A) Laryngopharynx
B) Nasopharynx, oropharynx, and laryngopharynx
C) Nasopharynx and oropharynx
D) Oropharynx
E) Oropharynx and laryngopharynx
OROpharynx & LARYNGOpharynx
nasal no bc it for breathing.. we ARENZT breathing food
What is the role of the laryngopharynx
TRANSPORTATION\
from esophagus to esophagus
What is the role of the oropharynx?
SWAlloWING & Prevention of entering other cavaties
nono to nasal cavity
nono to the entrance into the trachea
Name the three sphincters present and location on role
Cardiac Sphincter
keeps stomach stuff from coming back into esophagus
Pyloric Sphincter
join stomach to duodenum, keep duodenum stuff from going back to stomach
———-
-mixes food with gastric juice
-digestion of proteins
-limited absorption
What organ has all these functions?
the Stomach
What are the names to the parts of the stomach
Candy Finds Boys Poopy
(Superioir)Cardia
Fundus
Body
(inferiori)Pylorus
What are the four types of secretory cells found in the mixture of gastric juice?
Mami Cocina Pollo Entero
Mucus Neck
Chief
Parietal
Enteroendocrine
Mami Cocina Pollo Entero
What is the function of the small intestine?
BREAK DOWN, ABSORB nutrients, EXCRETE
Describe the secretion and function of Parietal Cells
secretes hyDROcholric acid(aka missing thing to ACTIVATE the pepsinogen to turn into PEPSIN)
FUNC? keeps the acid environment in the stomach
Describe the secretion and function of ENTERODOCRINE CELLS
secretion of Chemical messengers
FUNC? the hormones and messengers get to have control over digestive processes
Describe the secretion and function of mucus neck cells in the gastric juice
Mucus secretion
FUNC? Protect stomach from STOMACH acidity
Describe the secretion and function of CHIEF CELLS
Pepsinogen secretion(which is inactive from of real deal pepsin)
fun? just there waiting for activation
wtf does pepsin do?
its an enzyme that breakdown proteins
Proteins —->Polypeptides
What controls the stomach?
-Brain (thought of food or getting food)
-stomach(when food ENTERS stomach)
-small intestine (When food leaves the stomach & starts entering small intestine)
the layers of the wall of the digestive tract in order, starting with the innermost (deepest) layer at the top.
a. mucosa b. serosa c. submucosa
Mucosa
Submucosa
Muscularis
Serosa
Folds in some areas to increase surface areas
Which best describes which layer of the alimentary wall is this?
a. mucosa b. serosa c. submucosa
Mucosa
movement of the tube
Which best describes which layer of the alimentary wall is this?
a. mucosa b. serosa c. submucosa
Muscularis
