A | B |
gastrointestinal system | digestive system; responsible for digestion, absorption, & elimination |
absorption | passage of materials through the walls of the intestine into the bloodstream |
amino acids | building blocks of proteins; produced when proteins are digested |
amylase | enzyme secreted by the pancreas to digest starch |
anus | opening of the digestive tract to the outside of the body |
appendix | blind pouch hanging from the cecum in the RLQ |
bile | digestive juice made in the liver and stored in the gallbladder; breaks up large fat globules |
bilirubin | pigment released by the liver in bile |
bowel | intestine |
canine teeth | pointed, dog-like teeth next to the incisors AKA cuspids |
cecum | 1st part of large intestine |
colon | large intestine |
common bile duct | carriers bile from liver & gallbladder to the duodenum |
defecation | passage of feces from the body through the anus |
deglutition | swallowing |
dentin | major tissue composing teeth, covered by enamel in the crown and cementum in the root |
digestion | breakdown of complex foods into simpler forms |
duodenum | 1st part of small intestine; duo=2 den=10 (measures 12" in length) |
elimination | removal of waste material from the body |
emulsification | process of breaking large fat globs into small fat globs |
enamel | hard, outermost layer of the tooth |
enzyme | chemical that speeds up a readtion; help break down foods |
esophagus | tube connecting the throat to the stomach |
fatty acids | substances produced when fats are digested |
feces | solid watse; stools |
gallbladder | small sac under the liver; stores bile |
glucose | simple sugar |
glycogen | starch; glucose is stored as glycogen in liver cells |
hydrochloric acid | substance produced by the stomach; necessary for digestion of food |
ileum | 3rd part of small intestine (eilos = "twisted") |
incisor | one of four front teeth in the dental arch |
insulin | produced by endocrine cells of pancreas; Transports sugar from blood into cells & stimulates glycogen formation in the liver |
jejunum | 2nd part of small intestine (jejunus = "empty") |
lipase | pancreatic enzyme necessary to digest fats |
liver | large organ in the RUQ; secretes bile; stores sugar, iron, & vitamins; and destroys worn-out red blood cells |
lower esophageal sphincter | ring of muscles between the esophagus and stomach |
mastication | chewing |
molar teeth | 6th, 7th, & 8th teeth from the middle on either side of the dental arch |
premolar teeth | 4th & 5th teeth from middle, before molars |
palate | roof of mouth; hard palate is anterior the soft palate |
pancreas | organ under the stomach; produces insulin and enzymes |
papillae | small nipple-like elevations on the tongue |
parotid gland | salivary gland within the cheek, just anterior to the ear |
peristalsis | rythmn-like contractions in the GI tubes |
pharynx | throat, common passageway for foods from mouth and air from nose |
portal vein | large vein bringing blood to the liver from the intestines |
protease | enzymes that digest protein |
pulp | soft tissue within a tooth, containing nerves and blood vessels |
pyloric sphincter | ring of muscles at the distal region (bottom) of the stomach, where it joins the duodenum |
rectum | last section of the colon |
rugae | ridges on the hard palate and wall of the stomach |
saliva | digestive juice produced by the salivary glands |
salivary glands | parotid, sublingual, and submandibular glands |
sigmoid colon | lower part of colon; shaped like S |
sphincter | ring of muscles that constricts a passage or closes a natural opening |
stomach | muscular organ that receives food from the esophagus |
triglycerides | large fat molecules composed of 3 parts fatty acid & 1 part glycerol |
uvula | soft tissue hanging from the soft palate into the mouth |
villi | microscopic projections in the walls of the small intestine that absorb nutrients into the bloodstream |