Chapter 8 Flashcards
(128 cards)
esophagus
the muscular tube through which ingested food passes from the pharynx to the stomach
duodenum
first portion of the small intestine; extends from the pylorus to the jejunum
jejunum
middle portion of the small intestine; extends from the duodenum to the ileum
ileum
last and longest portion of the small intestine, extends from the jejunum to the cecum of the large intestine
glycogen
form of glucose stored in the liver and muscles
bile
digestive juice secreted by the liver that is necessary for the digestion of fat
bilirubin
a pigment formed in the liver by the breakdown of hemoglobin and excreted in bile, giving it a yellow to green color; excessive amounts can lead to jaundice
digestion
process where complex foods are broken down into nutrients in a form the body can use
metabolism
all of the processes involved in the body’s use of nutrients
anabolism
building up of body cells or substances from nutrients
catabolism
breaking down of body cells or substances, releasing energy and carbon dioxide
absorption
process where completely digested nutrients are transported to the cells throughout the body
villi
finger-like projections that cover the mucosa that lines the small intestine; each contains blood vessels and lacteals
mastication
aka chewing; breaks food down into smaller pieces, mixes it with saliva, and prepares it to be swallowed
bolus
a mass of food that has been chewed and is ready to be swallowed
chyme (KYM)
the semifluid mass of partly digested food that passes out of the stomach, through the pyloric sphincter, and into the small intestine
feces
aka solid body waste or stool; expelled through rectum and anus
defecation
aka bowel movement; evacuation or emptying of the large intestine
gut microflora/microbiota
the billions of bacteria present in the large intestine to protect against infection and help maintain the immune system
flatulence
the passage of gas (flatus) out of the body through the rectum
bariatrics
the branch of medicine for the prevention and management of obesity and associated diseases.
gastroenterologist
a physician who specializes in diagnosing and treating diseases and disorders of the stomach and intestines
orthodontist
a dental specialist who prevents or corrects malocclusion of the teeth and related facial structures
periodontist
a dental specialist who prevents or treats disorders of the tissues surrounding the teeth