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Chapter 8 - Vocabulary
Basic Vocabulary
155
Medical
Undergraduate 1
10/30/2012

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Term
Gastrointestinal Tract
Definition
GI Tract; makes up most of the digestive system
Term
Oral Cavity
Definition
Mouth; the lips, hard and soft palates, salivary glands, tongue, teeth, and the periodontium
Term
Lips
Definition
Labia; surround the opening to the oral cavity.
Term
Palate
Definition
forms the roof of the mouth, consists of three major parts:
- Hard Palate
- Soft Palate
- Uvula
Term
Hard Palate
Definition
the anterior portion of the palate. covered with a specialized mucous membrane.
Term
Soft Palate
Definition
the flexible posterior portion of the palate. During swallowing, it has the important role of closing off the nasal passage to prevent food and liquid from moving upward into the nasal cavity
Term
Uvula
Definition
the third part; hangs from the free edge of the soft palate. During swallowing, it moves upward with the soft palate.
Term
Tongue
Definition
very strong, flexible, and muscular. Located in the mouth.
Term
Papillae
Definition
the small bumps covering the tongue
Term
Periodontium
Definition
describes the structures that surround, support, and are attached to the teeth
Term
Gingiva
Definition
Gums; the specialized mucous membrane that covers the bone of the dental arches and surrounds the neck f the teeth
Term
Dental Arches
Definition
the bony structures of the oral cavity; hold the teeth firmly in place to faciltate chewing and speaking
Term
Temperomandibular Joint
Definition
TMJ; fored at the back of the mouth where the maxillary and mandibular arches come together
Term
Dentition
Definition
refers to natural teeth arranged in the upper and lower jaws
Term
Occlusion
Definition
when used in dentistry, describes any contact between the chewing surfaces of the upper and lwer teeth
Term
Saliva
Definition
a colorless liquid that maintains the moisture in the mouth; helps maintain the teeth and starts the digestive process by lubricating the food during chewing and swallowing
Term
Salivary Glands
Definition
three pairs; secrete saliva that is carried by ducts into the mouth
Term
Esophagus
Definition
the muscular tube through which ingested food passes from the pharynx to the stomach
Term
Lower Esophageal Sphincter
Definition
Cardiac Sphincter; a muscular ring between the esophagus and stomach. During swallowing, it relaxes to allow food to enter the stomach.
Term
Stomach
Definition
a sac-like organ composed of the fundus (Upper, Rounded part), body (Main Part)and antrum (Lower Part)
Term
Rugae
Definition
the folds in the mucosa lining of the stomach. Allows the stomach to increase and decrease in size.
Term
Gastric Juices
Definition
aid in the beginning of food digestion. Mucus produced by glands in the stomach create a protective coating on the lining of the stomach
Term
Pyloric Sphincter
Definition
the ring-like muscle at the base of the stomach that controls the flow of partially digested food from the stomach to the duodenum of the small intestine
Term
Pylorus
Definition
the narrow passage that connects the stomach with the small intestine
Term
Small Intestine
Definition
extends from the pyloric sphincter to the first part of the large intestine. Consists of:
- Duodenum
- Jejunum
- Ileum
Term
Duodenum
Definition
the first portion of the small intestine. The duodenum extends from the pylorus of the stomach to the jejunum
Term
Jejunum
Definition
the middle portion of the small intestine, extends from the duodenum to the ileum
Term
Ileum
Definition
the last and longest part of the small intestine, extends from the jejunum to the cecum of the large intestine
Term
Large Intestine
Definition
extends from the end of the small intestine to the anus. Twice as wide as the small intestine but only one-fourth as long. the waste products of digestion are processed in preparation for excretion through the anus.
Term
Cecum
Definition
a pouch that lies on the right side of the abdomen. it extends from the end of the ileum to the beginning of the colon
Term
Ileocecal Sphincter
Definition
the ring-like muscle that controls the flow from the ileum of the small intestine into the cecum of the large intestine
Term
Vermiform Appendix
Definition
Appendix; hangs from the lower portion of the cecum
Term
Colon
Definition
the longest portion of the large intestine, is subdivided into 4 parts:
- Ascending Colon
- Transverse Colon
- Descending Colon
- Sigmoid Colon
Term
Ascending Colon
Definition
travels upward from the cecum to the undersurface of teh liver
Term
Transverse Colon
Definition
passes horizontally across the abdominal cavity from right to left toward the spleen
Term
Descending Colon
Definition
travels down the left side of the abdominal cavity to the sigmoid colon
Term
Sigmoid Colon
Definition
an S-shaped structure that continues from the descending colon above and joins the rectum below
Term
Rectum
Definition
the widest division of the large intestine. Makes up the last four inches of the large intestine and ends at the anus
Term
Anus
Definition
the lower opening of the digestive tract
Term
Anorectal
Definition
refers to the anus and rectum as a singular unit
Term
Accessory Organs
Definition
the liver, gallbladder, and pancreas
Term
Liver
Definition
the largest organ in the body; removes toxin from the blood and turns food into the fuel and nutrients the body needs
Term
Bilirubin
Definition
a yellow to green fluid, commonly known as bile, that is manufactured by the liver and is essential in the digestion of fat
Term
Bile
Definition
aids in the digestion of fats, is a digestive juice secreted by the liver
Term
Biliary Tree
Definition
Provides the channels through which bile is transported from the liver to the small intestine
Term
Gallbladder
Definition
a pear-shaped organ about the size of an egg located under the liver. It stores and concentrates bile for later use
Term
Pancreas
Definition
a soft, 6-inch long oblong gland that is located behind the stomach. produces and secrete pancreatic juices that aid in digestion and contain digestive enzymes and sodium bicarbonate to help neutralize stomach acids
Term
Digestion
Definition
the process by which complex foods are broken down into nutrients in a form the body can use
Term
Metabolism
Definition
includes all of the processes involved in the body's use of nutrients
Term
Anabolism
Definition
the building up of body cells and substances from nutrients
Term
Catabolism
Definition
the breaking down of body cells or substances, releasing energy and CO2
Term
Absorption
Definition
the process by which completely digested njutrients are transported to the cells throughout the body
Term
Mastication
Definition
Chewing; breaks food down into smaller pieces, mixes it with saliva, and prepares it to be swallowed
Term
Bolus
Definition
a mass of food that has been chewed and is ready to swallow
Term
Peristalsis
Definition
a series of wave-like contractions of the smooth muscles in a single direction that moves the food forward into the digestive system
Term
Chyme
Definition
the semifluid mass of partly digested food that passes out of the stomach, through the pyloric sphincter, and into the stomach
Term
Feces
Definition
expelled through the rectum and anus
Term
Defecation
Definition
the evacuation or emptying of the large intestine
Term
Borborygmus
Definition
the rumbling noise caused by the movement of gas within the intestine
Term
Flatulence
Definition
the passage of gas out of the body through the rectum
Term
Bariatrics
Definition
the branch of medicine concerned with the prevention and control of obesity and associated diseases
Term
Dentist
Definition
specializes in diagnosing and treating diseases and disorders of the teeth and tissues of the oral cavity
Term
Oral or Maxillofacial Surgeon
Definition
specializes in surgery of the face and jaws to correct deformities, treat diseases, and repair injuries
Term
Orthodontist
Definition
a dental specialist who prevents or corrects malocclusion of the teeth and related facial structures
Term
Periodontist
Definition
a dental specialist who prevents or treats disorders of the tissues surrounding the teeth
Term
Aphtosus ulcers
Definition
gray-white pits with a red border in the soft tissues lining the mouth
Term
Cheilosis
Definition
a disorder of the lips characterized by crack-like sores at the corners of the mouth
Term
Herpes Labialis
Definition
cold sores; blister-like sores on the lips and adjacent facial tissue that are caused by the oral herpes simplex virus type 1
Term
Leukoplakia
Definition
an abnormal white precancerous lesion that develops on the tongue or the inside of the cheek. these lesions develop due to chronic irritation
Term
Stomatitis
Definition
the inflammation of the mucosa of the mouth
Term
Stomatomycosis
Definition
any disease of the mouth due to a fungus
Term
Oral Thrush
Definition
a type of stomatmycosis that develops when the fungus Candida Albicans grows out of control; causes creamy white lesions to form on the tongue or inner cheeks
Term
Trismus
Definition
describes any restriction to the opening of the mouth caused by trauma, surgery, or radiation associated with the treatment of oral cancer
Term
Cleft Lip
Definition
Harelip; a birth defect in which there is a deep groove of the lip running upward to the nose as a result of the failure of this portion of the lip to close during prenatal developement
Term
Cleft Palate
Definition
the failure of the palate to close during the early developement of the fetus
Term
Bruxism
Definition
the involuntary grinding or clenching of the teeth that usually occurs during sleep and is associated with tension or stress
Term
Dental Caries
Definition
Cavity; a infectious disease caused by bacteria that destroy the enamel and dentin of teh tooth
Term
Dental Plaque
Definition
a major cause of cavities and periodontal disease, forms as soft deposits in sheltered areas near the gums and between the teeth
Term
Edentulous
Definition
Without teeth
Term
Halitosis
Definition
an unpleasant odor coming from the mouth that can be caused by dental diseases or respiratory or gastric disorders
Term
Malocclusion
Definition
any deviation from the normal positioning of the upper teeth against the lower teeth
Term
Periosontal Disease
Definition
an inflammation of the tissues that surround and support the teeth
Term
Dental Calculus
Definition
dental plaque that has calcified on teh teeth
Term
Acute Necrotizing Ulcerative Gingivitis (ANUG)
Definition
caused by the abnormal growth of bacteria in the mouth
Term
Acute Necrotizing Ulcerative Gingivitis (ANUG)
Definition
caused by the abnormal growth of bacteria in the mouth
Term
Gastroesopageal Reflux Disease (GERD)
Definition
the upward flow of acid from the stomach into the esophagus
Term
Esophageal Varices
Definition
enlarged swollen veins at the lower end of the esophagus
Term
Hiatal Hernia
Definition
an anatomical abnormality in which a portion of the stomach protrudes upward into the chest, through an opening in the diaphragm
Term
Peptic Ulcers
Definition
sores that affect the mucous membranes of the digestive system; caused by the bacterium Helicobacter Pylori or by medications that irritate the mucous membranes
Term
Anorexia
Definition
the loss of appetite for food, especially when caused by disease
Term
Anorexia Nervosa
Definition
an eating disorder characterized by a false perception of body appearance
Term
Bulimia Nervosa
Definition
an eating disorder characterized by frequent episodes of binge eating followed by compensatory behaviors such as self-induced vomiting or the misuse of laxatives, diuretics, or other medications
Term
Cachexia
Definition
a condition of physical wasting away due to the loss of weight and muscle mass that occurs in patients with diseases such as advanced cancer or AIDS
Term
Pica
Definition
an abnormal craving or appetite for nonfood substances, such as dirt, paint, or clay that lasts for one month
Term
Obesity
Definition
an excessive accumulation of fat in the body.
Term
Morbid Obesity
Definition
condition of weighing two times or more than the ideal weight or having a body mass index value greater than 40
Term
Body Mass Index (BMI)
Definition
a number that shows the body weight adjusted for height
Term
Eructation
Definition
the act of belching or raising gas orally from the stomach
Term
Emesis
Definition
Vomiting
Term
Nausea
Definition
the urge to vomit
Term
Regurgitation
Definition
the return of swallowed food into the mouth
Term
Celiac Disease
Definition
an inherited autoimmune disorder characterized by a severe reaction to foods containing gluten
Term
Colorectal Carcinoma
Definition
Colon Cancer; first manifests itself in polyps in the colon
Term
Polyp
Definition
a mushroom-like growth from the surface of a mucous membrane
Term
Diverticulum
Definition
a small pouch, or sac, found in the lining or wall of a tubular organ such as the colon
Term
Ischemic Colitis
Definition
occurs when part of the large intestine is partially or completely deprived of blood
Term
Ileus
Definition
the partial or complete blockage of the small or large intestine
Term
Irritable Bowel Syndrome (IBS)
Definition
a common condition of unknown cause with symptoms that can include intermittent cramping, abdominal pain, bloating, constipation, and diarrhea
Term
Inflammatory Bowel Disease (IBD)
Definition
the general name for diseases that cause inflammation and swelling in the intestines
Term
Ulcerative Colitis
Definition
a chronic condition of unknown cause in which repeated episodes of inflammation in the rectum and large intestine cause ulcers
Term
Crohn's Disease
Definition
a chronic autoimmune disorder that can occur anywhere in the digestive tract
Term
Intestinal Obstruction
Definition
the partial or complete blockage of the small or large intestine caused by a physical obstruction
Term
Volvulus
Definition
the twisting of the intestine on itself, causing an obstruction
Term
Intussusception
Definition
the telescoping of one part of the small intestine into the openings of an immediately adjacent part
Term
Inguinal Hernia
Definition
the protrusion of a small loop of bowel through a weak place in the abdominal wall or groin; can be caused by obesity, pregnancy, heavy lifting, or straining to pass a stool
Term
Strangulated hernia
Definition
occurs when a portion of the intestine is constricted inside the hernia, causing ischemia in this tissue by cutting off its blood supply
Term
Clostridum Difficile
Definition
C. diff.;a bacterial infection common to older adults in hospitals or long-term care facilities, typically following the use of antibiotics that wipe out competing bacteria
Term
Dysentery
Definition
a bacterial infection, occurs most frequently in hot countries where it is spread through food or water contaminated by human feces
Term
E. coli
Definition
caused by the bacterium Escherichia coli, transmitted through contaminated foods that have not been cooked properly
Term
Salmonellosis
Definition
transmitted by feces, either through direct contact with animals or by eating contaminated raw or undercooked meats
Term
Anal Fissure
Definition
a small crack-like sore in the skin of the anus that can cause severe pain during a bowel movement
Term
Bowel Incontinence
Definition
is the inability to control the excretion of feces
Term
Constipation
Definition
defined as having a bowel movement fewer than three times a week; stools are usually hard, dry, small in size, and hard to eliminate
Term
Hemorrhoids
Definition
occur when a cluster of veins, muscles, and tissues slip near or through the anal opening.
Term
Hematochetzia
Definition
the flow of bright red blood in the stool
Term
Melena
Definition
the passage of black, tarry, and foul-smelling stools
Term
Steatorrhea
Definition
the presence of an excess of fat in the stool
Term
Ascites
Definition
an abnormal accumulation of serous fluid in the peritoneal cavity; usually the result of severe liver disease
Term
Jaundice
Definition
a yellow discoloration of the skin, mucous membranes, and the eyes; caused by greater-than-normal amounts of bilirubin in the blood
Term
Cirrhosis
Definition
a chronic degenerative disease of the liver characterized by scarring
Term
Nonalcoholic Fatty Liver Disease(NAFLD)
Definition
describes the accumulation of fat in the liver of people who drink little or no alcohol
Term
Nonalcoholic Steatohepatitis
Definition
a more serious form of this condition since it consists of fatty accumulations plus liver-damaging inflammation
Term
Gallstone
Definition
a hard deposit formed in the gallbladder and bile ducts due to the concentration of bile components
Term
Cholelithiasis
Definition
the presence of gallstones in the gallbladder or bile ducts
Term
Abdominal Computed Tomography (CT)
Definition
a radiographic procedure that produces a detailed cross-section of the tissue structure within the abdomen
Term
Abdomainal Ultrasound
Definition
a noninvasive test used to visualize organs by using very high-frequency sound waves
Term
Enema
Definition
the placement of a solution into the rectum and colon to empty the lower intestine through bowel activity
Term
Upper and Lower GI Series
Definition
radiographic studies to examine the digestive system
Term
Stool Samples
Definition
specimens of feces that are examined for content and characteristics
Term
Capsule Endoscopy
Definition
the use of a tiny video camera in a capsule that the patient swallows. for approximately 8 hours, as it passes through the small intestine, this camera transmits images of the walls of the small intestine
Term
Hemoccult Test
Definition
a laboratory test for hidden blood in the stools
Term
Antacids
Definition
Neutralize the acids in the stomach; taken to relieve the discomfort of conditions such as pyrosis or to help peptic ulcers heal
Term
Proton Pump Inhibitors
Definition
decrease the amount of acid produced by the stomach
Term
Antiemetic
Definition
adminstered to prevent or reilive nausea or vomiting
Term
Laxatives
Definition
medications or foods given to stimulate bowel movements
Term
Intravenous Fluids (IV)
Definition
administered to combat the effects of dehydration
Term
Oral Rehydration Therapy (ORI)
Definition
treatment in which a solution of electrolytes is administered in a liquid preparation to counteract the dehydration that can accompany severe diarrhea
Term
Dental Prophylaxis
Definition
the professional cleaning of teeth to remove plaque and calculus
Term
Palatoplasty
Definition
surgical repair of a cleft palate
Term
Nasogastric Incubation
Definition
the placement of a feeding tube through the nose and into the stomach
Term
Gastrotomy Tube
Definition
a surgically placed feeding tube from the exterior of the body directly into the stomach
Term
Total Parenteral Nutrition (TPN)
Definition
administered to patients who cannot or should not get their nutrition through eating
Term
Bariatric Surgery
Definition
is performed to treat morbid obesity by restricting the amount of food that can enter the stomach and be digested
Term
Anastomosis
Definition
a surgical connection between two hollow, or tubular, structures
Term
Liver Transplant
Definition
option for a patient whose liver has failed for no reason other than liver cancer
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