Test 2 HIM - Chapters 3, 4, & 5 part 1 Flashcards
gastr/o-
stomach
intestin/o-
intestine
-al
pertaining to
Other terms for Gastrointestinal System:
- gastrointestinal tract
- digestive system
- digestive tract
- alimentary canal
digest/o-
break down food; digest
-ive
pertaining to
aliment/o-
food; nourishment
-ary
pertaining to
or/o-
mouth
Gastrointestinal system begins where?
In the mouth or oral cavity
What is contained in the oral cavity?
Teeth, gums, tongue, hard palate, soft palate, and uvula
lingu/o-
tongue
gloss/o-
tongue
gustat/o-
sense of taste
-ory
having the function of
Receptors on the tongue perceive taste and send this sensory information where?
Gustatory cortex in the brain
Lubricant that moistens food as it is chewed and swallowed
saliva
What enzyme is contained in saliva?
Amylase
saliv/o-
saliva
Three pairs of salivary glands:
- parotid glands
- sublingual glands
- submandibular glands
Process of chewing food
mastication
par-
beside
ot/o-
ear
-id
origin; resembling; source
sub-
below; underneath
lingu/o-
tongue
mandibul/o-
lower jaw; mandible
mastic/o-
chewing
-ation
being; having; process
Process of swallowing food
deglutition
degluti/o-
swallowing
-tion
being; having; process
pharyng/o-
pharynx; throat
-eal
pertaining to
How does the body prevent swallowed food from going into the larynx and into the lungs?
When the food is swallowed, muscles in the neck pull the larynx upward towards the epiglottis. This seals off the opening so that the food does not enter into the larynx.
flexible, muscular tube that connect the pharynx to the stomach
esophagus
esopha/o-
esophagus
What process does the esophagus use to move food towards the stomach?
peristalsis
peri-
around
stal/o-
contraction
-sis
condition; process
pylor/o-
pylorus
-ic
pertaining to
large, elongated sac in the upper abdominal cavity
stomach
Four regions of the stomach
- Cardia
- Fundus
- Body
- Pylorus
Gastric mucosa is arranged in thick, deep folds called
Rugae
Two sphincters in the stomach
- Lower esophageal sphincter
* Pyloric sphincter
Semisolid mixture of partially digested food, saliva, digestive enzymes, and fluids in the stomach
Chyme
Long, hollow tube that receives chyme from the stomach
Small intestine or small bowel
Three parts of the small intestine:
- Duodenum
- Jejunum
- Ileum
duoden/o-
duodenum
10-inch, C shaped segment that begins at the stomach and ends at the jejunum
duodenum
Second part of the small intestine; 8-foot segment that repeatedly twists and turns in the abdominal cavity
jejunum
Final part of the small intestine; 12-foot long segment where absorption of nutrients is completed
ileum
jejun/o-
jejunum
ile/o-
ileum
Ileum contains thousands of these small, thin structures
villi
Central, open area
lumen
Larger tube that receives undigested material and some water from the small intestine
Large intestine or large bowel
Four parts of the large intestine:
- cecum
- colon
- rectum
- anus
short sac; appendix hangs from it
cecum
cec/o-
cecum
appendic/o-
appendic
-ix
thing
The walls of the large intestine contain these puckered pouches that can greatly expand as needed
haustra
Longest part of the large intestine; travels through all 4 quadrants of the abdomen
colon
4 parts of the colon:
- ascending colon
- transverse colon
- descending colon
- sigmoid colon
colon/o-
colon
short, straight segment that connects to the outside of the body
rectum
the external opening of the rectum located between the buttocks
anus
rect/o-
rectum
an/o-
anus
proct/o-
rectum and anus
celi/o-
abdomen
This cavity contains the largest organs of the GI system
abdominopelvic cavity
double-layer serous membrane; one later lines the walls of the abdominopelvic cavity and the other later surrounds each of the organs
peritoneum
peritone/o-
peritoneum
periton/o-
peritoneum
watery fluid that fills the spaces between organs and allows them to slide past each other during the movements of digestion; secreted by the peritoneum
paritoneal fluid
Supports the stomach and hangs down as a broad, fatty apron to cover and protect the small intestine; extension of the peritoneum
omentum
The peritoneum also becomes this thick, fan-shaped sheet that supports the jejunum and ileum
mesentery
meso-
middle
The blood supply to the stomach, small intestine, liver, gallbladder, and pancreas comes from this branch of the aorta
celiac trunk
Accessory organs of digestion
liver, gallbladder, and pancreas
Large, dark red-brown organ located in the upper abdomen.
Liver
hepat/o-
liver
-cyte
cell
yellow-green, bitter-tasting, thick fluid
bile
Bile is a combination of what?
bile acids, mucus, fluid, and two pigments, bilrubin and biliverdin
all of the bile ducts are collectively known as
biliary tree
Bile produced by the liver flows through the ____ and into the ____ towards the duodenum
common hepatic duct; common bile duct
bili/o-
bile; gall
rub/o-
red
-in
substance
teardrop-shaped, dark green sac posterior to the liver; concentrates and stores bile
gallbladder
The presence of what in the duodenum causes the gallbladder to contract and release it’s bile
fatty chyme
yellow gland shaped like an elongated triangle
pancreas
Duct that the pancreas secrets its digestive enzymes through to the duodenumo
pancreatic duct
Two types of digestion:
- mechanical
* chemical
What processes are involved in mechanical digestion?
- mastication
- deglutition
- peristalsis
- emulsification
Hormone secreted by the duodenum that causes the gallbladder to contract and release bile
cholecystokin
cholecyst/o-
gallbladder
kin/o-
movement
emulsific/o-
liquid with suspended particles
Chemical digestion uses what to break down foods?
- enzymes
* acid
3 substances the stomach secretes during chemical digestion
- hydrochloric acid (HCl)
- pepsinogen
- gastrin
strong acid that breaks down food fibers, converts pepsinogen to the digestive enzyme pepsin, and kills microorganisms in food
HCl
inactive substance converted by HCl to pepsin
pepsinogen
digestive enzyme that breaks down protein foods into protein molecules
pepsin
hydr/o-
fluid; water
chlor/o-
cholide
pepsin/o-
pepsin
-gen
that which produces
peps/o-
digestion
hormone that stimulates the release of more HCl and pepsinogen
gastrin
Chemical digestion continues in the small intestine as cholecystokin from the duodenum stimulates the pancreas to secrete what?
- amylase
- lipase
- protein-digesting enzymes
amyl/o-
carbohydrate; starch
-ase
enzyme
lip/o-
fat; lipid
lact/o-
milk
villi of the small intestine produce this digestive enzyme
lactase
This enzyme breaks down the sugars in carbohydrates, starches, and milk to the simple sugar glucose
lactase
What is absorbed through the intestinal wall and into the blood in the small intestine?
nutrients and water
What is absorbed through the intestinal wall and into the blood in the large intestine?
any remaining water
absorpt/o-
absorb; take in
chez/o-
pass feces
fec/o-
feces; stool
fec/a-
feces; stool
This occurs when undigested materials and water are eliminated from the body in a solid waste form known as feces
elimination; defecation
de-
reversal of; without
mucous membrane that lines the GI system and produces thin mucus
mucosa
hard bone and posterior soft tissues that form the roof of the mouth
palate
first part of the stomach just after the esophagus
cardia
rounded, top part of the stomach
fundus
narrowed, last part of the stomach just before it joins the duodenum
pylorus
decreased appetite because of disease or gastrointestinal side effects of a drug
anorexia
an-
not; without
orex/o-
appetite
-ia
condition; state; thing
difficult or painful eating or swallowing
dysphagia
dys-
painful; abnormal; difficult
phag/o-
swallowing; eating
excessive overeating due to an overactive thyroid gland, diabetes mellitus, or a psychiatric illness
polyphagia
poly-
many; much
inflammation and cracking of the lips and corners of the mouth due to infection, allergies, or a nutritional deficiency
cheilitis
cheil/o-
lip
-itis
infection of; inflammation of
stone that forms in the salivary gland and becomes lodged in the duct, blocking the flow of saliva
sialolithiasis
sial/o-
saliva; salivary gland
lith/o-
stone
-iasis
process; state
-lith
stone
inflammation of the oral mucosa
stomatitis
stomat/o-
mouth
consists of reccuring outbreaks of small, painful ulcers (canker sores) on the lips or oral mucosa
aphthous stomatitis
aphth/o-
ulcer
-ous
pertaining to
inflammation that involves only the tongue
glossitis
Indigestion with mild, temporary epigastric pain, sometimes with gas or nausea
dyspepsia
Swollen, protruding veins in the mucosa of the lower esophagus or stomach
esophageal varices
Acute or chronic inflammation of the stomach due to spicy foods, excess acid production, or a bacterial infection
gastritis
Acute inflammation or infection of the stomach and intestines due to a virus (flu) or bacterium
gastroenteritis
Chronic inflammation and irritation due to reflux of stomach acid back into the esphagus because the LES does not close tightly.
gastroesophageal reflux disease (GERD)
Temporary inflammation of the esophagus due to reflux of stomach acid.
heartburn; pyrosis
pyr/o-
burning; fire
-osis
condition; process
Vomitting of blood because of bleeding in the stomach or esophagus
hematemesis
eme/o-
vomitting
emet/o-
vomitting
Expelled food or chyme
vomitus
reflux of small amounts of food and acid back into the mouth, but without vomitting
regurgitation
regurgitat/o-
backward flow
Excessive vomitting during the first months of pregnancy
hyperemisis gravidarum
Chronic irritation, burning pain, and erosion of the mucosa to form an ulcer (stomach, esophagus, and duodenum)
peptic ulcer disease (PUD)
cancerous tumor of the stomach that begins in the glands in the gastric mucosa
stomach cancer
stomach cancer is categorized as an?
adenocarcinoma
cancer/o-
cancer
aden/o-
gland
carcin/o-
cancer
-oma
mass; tumor
abnormal absence of peristalsis in the small and large intestines.
ileus
occurs after the intestines are manipulated during abdominal surgery and peristalsis is slow to return
postoperative ileus
post-
after; behind
operat/o-
perform a procedure; surgery
Telescoping of one segment of intestine inside the lumen of the next segment
intussusception
intussuscept/o-
receive within
twisting or rotating of the intestine around itself because of a structural abnormality of the mesentery
volvulus or malrotation
mal-
bad; inadequate
rotat/o-
rotate
inflammation and infection of the appendix
appendicitis
common disorder in babies; crampy abdominal pain soon after eating
colic
cancerous tumor of the colon
colon cancer or colorectal adenocarcinoma
weakness in the wall of the colon where the mucosa forms a pouch or tube
diverticulum
condition of multiple diverticula
diverticulosis or diverticular disease
Inflammation, abdominal pain, infection, and fever caused by feces trapped inside of diverticulum
diverticulitis
diverticul/o-
diverticulum
bacterial infection caused by an unusual strain of E. coli; there is watery diarrhea mixed with blood and mucus
dysentery
-entery
condition of the intestine
autoimmune disorder and toxic reaction to the gluten found in certain grains; damages the small intestine
gluten sensitivity enteropathy
-pathy
disease
Gluten sensitivity enteropathy is also known as
celiac disease
-ac
pertaining to