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Biology 3 Chapter 24 Study Guide
Terms in this set (54)
another name for the digestive system
a compact and moist ball of food
another name for oral cavity
the first part of the large intestine, connected to ileum by ileocecal valve, appendix is here, stores chyme
encloses the root of the tooth, helps periodontal ligament attach to the tooth
food and gastric juices combined, semi-fluid paste
elimination of feces, proper term for getting rid of wastes
another name for swallowing
bulk of tooth, holds pulp cavity
frequent passage of loose, watery stools
strongest material in the body, covers the crown (part we see), made of calcium white and shiny
covers the trachea, prevents food/drink from going into the trachea/lungs
fat filled sacs on the large intestine
membrane that secures the tongue to the bottom of mouth
pouches in the large intestine
contain taste buds
ligament that anchors the tooth to the ginjiva
waves that push dry bolus down the esophagus
folds of the small intestine wall, absorb nuterients
contains blood vessels and nerves, covered by dentin
folds in stomach, allow for expansion
bands of smooth muscle that contract haustra
narrow space between the teeth, cheeks, and lips
small projections in the small intestine, increases surface area
What does the liver make?
How many lobes does the liver have?
What is the job of the liver?
sodium bicarbonate, digestive chemicals, insulin
What does the pancreas make?
adds more digestive chemicals to the chyme, regulates blood sugar
What is the job of the pancreas?
How many teeth do adults have?
How many teeth do children have?
incisors-8, cuspid-4, molar-8
Teeth in children:
incisors-8, cuspid-4, bicuspid-8, molar-12
Teeth in adults:
crown, neck, root
Three parts of a tooth:
What is the job of the gallbladder?
duodenum, jejunum, ileum
Three portions of the small intestine:
cecum, ascending colon, transverse colon, descending colon, sigmoid colon, rectum
Parts of the large intestine:
Which sphincter in the rectum is involuntary?
Which sphincter in the rectum is voluntary?
Length of time food travels in the esophagus:
What percent of nutrients absorption occurs in the small intestine?
ingestion, mechanical processing, digestion, secretion, absorption, excretion
Six functions of the digestive system:
mechanical and chemical stresses (corrosive enzymes and acids, abrasion, bacteria)
What does the lining of the stomach protect it from?
to prevent food from going into the nasal cavity
Why does the soft palate raise during swallowing?
6 months to 2 years
What is the age range in which teeth start to appear?
What causes intestinal gas?
mucous cell-mucus, chief cell- pepsin, parietal cell- hydrochloric acid
Types of stomach cells and what they produce:
ulcers, constipation, hemorrhoids, sphincters weaken, heartburn, loss of teeth, liver disease, cancer
What happens to your digestive system as you age?
buccal, pharyngeal, esophagea
What are the three stages of swallowing?
reabsorb water, create and store feces, absorb vitamins
What is the job of the large intestine?
75% water, 5% bacteria, 20% mixture of undigested food, salts, and broken cells
Breakdown of fecal waste:
primary role in absorption and digestion
What is the job of the small intestine?
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