Digestive System

25 terms by zharp04

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alimentary canal

long, muscular tube that begins at the mouth and includes the mouth, pharynx, esophagus, stomach, small intestine, large intestine, and anus

anus

opening in the anal canal that expells fecal material, or stool, the final waste product of the digestive process

colon

the large intestine

digestive system

also known as the gastrointestinal system; responsible for the physical and chemical breakdown of food so that it can be taken into the bloodstream and used by body cells and tissues

duodenum

the first nine to ten inches of the small intestine; bile and pacreatic juice enter this section through ducts, or tubes

esophagus

muscular tube dorstal to the trache; receives the bolus from the pharynx and carries the bolus to the stomach

gallbladder

a small, muscular sac located under the liver and attache to it by connective tissue; stores and concentrates bile

hard palate

bony structure that forms the roof of the mouth and separates the mouth from the nasal cavities

ileum

the final 12 feet of the small intestine; connects with the large intestine at the cecum

jejunum

is approximately eight feet in length and forms the middle section of small intestine

large intestine

final section of the alimentary canal; approximately five feet in length and two inches in diameter; funcitons include absorption of water and any remanining nutrients, storage of indigestible materials before they are eliminated from the body...

liver

the largest gland in the body and is an accessory organ to the digestive system; located under the diaphragm and in the upper right quadrant of the abdomen; secretes bile and stores sugar, iron, and certain vitamins; produces hparin and detoxifies substances such as acohol, ect.

mouth

buccal cavity, receives food as it enters the body

pancreas

a glandular organ located behind the stomach; produces pancreatic juices, which contain enzymes to digest food.

peristalsis

rhythmic, wavelike, involuntary movement of muscles to move food in a forward motion

pharynx

a tube that carries both air and food

rectum

the final six to eight inches of the large intestine and is a storage area for indigestible and wastes

salivary glands

glands of the mouth that produce saliva, a digestive secretion

small intestine

a coiled section of the alimentary canal; it is approximately 20 feet in length and one inch in diameter, and is divided into 3 sections

soft palate

separates the mouth from the nasopharynx

stomach

an enlarged part of the alimentary canal; receives the food from the espohagus

teeth

special structures in the mouth that physically break down food by chewing and grinding

tongue

a muscular organ that contatins special receptors, called taste buds

vermiform appendix

small projection of the ileum

villi

lines the walls of the small intestine; contain blood capillaries and lacteals

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