Chapter 8 Flashcards
Or/o
Stomat/o
Mouth. Begins preparation of food for digestion
Pharyng/o
Pharynx
Transports food from the mouth to the esophagus
Esophag/o
Esophagus
Transports food from the pharynx to the stomach
Gastr/o
Stomach, belly
Breaks down food and mixes it with gastric juices
Enter/o
Small intestine
Mixes chyme coming from the stomach with digestive juices to complete the digestionand absorption of most nutrients
Col/o
Colon/o
Large intestine
Absorbs excess water and prepares solid waste for elimination
An/o
Proct/o
Rect/o
Rectum and anus
Control the excretion of solid waste
Hepat/o
Liver
Secretes bile and enzymes to aid in the digestion of fats
Cholecyst/o
Gallbladder
Stores bile and releases it into the small intestine as needed
Pancreat/o
Pancreas
Secretes digestive juices and enzymes into the small intestine as needed
An/o
Anus, ring
Chol/o
Bile, gall
Col/o
Colon/o
Colon, large intestine
-emesis
Vomiting
-lithiasis
Presence of stones
-pepsia
Digest, digestion
-phagia
Eating, swallowing
Rect/o
Rectum, straight
Sigmoid/o
Sigmoid colon
Aerophagia
The excessive swallowing of air while eating or drinking, and is a common cause of gas in the stomach. Aer/o means air, -phagia means swallowing
Anastomosis
A surgical connection between two hollow or tubular structures. Plural anatomoses.
Antiemetic
Medication administered to prevent or relieve nausea and vomiting. Anti- means against, emet means vomit, -ic means pertaining to
Aphthous ulcers
Gray-white pits with a red border that appear in the soft tissues lining the mouth, also known as canker sores or mouth ulcers. Although the exact cause is unknown, the appearance of these very common sores is associated with stress, certain foods or fever
Ascites
An abnormal accumulation of serous fluid in the peritoneal cavity. This condition is usually the result of severe liver disease creating pressure on the liver’s blood vessels
Bariatrics
The branch of medicine concerned with the prevention and control of obesity and associated diseases
Borborygmus
The rumbling noise caused by the movement of gas in the intestine
Cachexia
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
Celiac disease
An inherited autoimmune disorder characterized by a severe reaction to food containing gluten, also known as gluten intolerance . This common disorder damages the villi of the small intestine and can cause malabsorption
Cheilosis
A disorder of the lips characterized by cracklike sores at the corners of the mouth. Also known as cheilitis. Cheil means lips, -osis means abnormal condition or disease
Cholangiography
A radiographic examination of the bile ducts with the use of a contrast medium. Cholangi/o means bile duct, -graphy means the process of recording. This test is used to identify obstructions in the liver or bile ducts that show or block the flow of bile from the liver
Cholangitis
An acute inflammation of the bile duct characterized by pain in the right upper quadrant of the abdomen, fever, and jaundice . Cholang means bile duct, -itis means inflammation. The most common cause is bacterial infection
Cholecystectomy
The surgical removal of the gallbladder. Cholecyst means gallbladder, -ectomy means surgical removal.
Cholecystitis
Inflammation of the gallbladder, usually associated with gallstones blocking the flow of bile. Cholecyst means gallbladder, -itis means inflammation
Choledocholithotomy
An incision into the common bile duct for removal of gallstones. Choledoch/o means the common bile duct, lith means stone, -otomy means surgical incision
Cholelithiasis
The presence of gallstones in the gallbladder or bile ducts. Chole means bile or gall, -lithiasis means presence of stones
Cirrhosis
A progressive degenerative disease of the liver characterized by scarring. Cirrh means yellow or orange, -osis means abnormal condition or disease. Often caused by excessive alcohol abuse or by viral hepatitis B or C. The progress of cirrhosis is marked by the formation of areas of scarred liver tissue that are filled with fat. The liver damage causes abnormal conditions throughout the other body systems
Colonoscopy
The direct visual examination of the inner surface of the entire colon, from the rectum to the cecum using the colonoscope. Colon/o means colon, -scopy means visual examination
Colostomy
The surgical creation of an artificial excretory opening between the colon and the body surface. Col means colon, -ostomy means surgically creating an opening. The segment of the intestine below the ostomy is usually removed, and the fecal matter flows through the stoma into a disposable bag. Can be temporary to divert feces from an area that needs to heal
Crohn’s disease
A chronic autoimmune disorder that can occur anywhere in the digestive tract, however it is most often found in the ileum and in the colon. Generally penetrates every layer of tissue in the affected area. This can result in scarring and thickening of the walls of the affected structures. The most common complication is blockage of the intestine due to swelling and scarring
Dental prophylaxis
The professional cleaning of the teeth to remove plaque and calculus
Diverticulitis
Inflammation or infection of one or more diverticula in the colon. Sometimes develops as a result of diverticulosis. Diverticul means duverticulum, -itis means inflammation. Symptoms of this condition can include sudden abdominal pain, cramping, and nausea
Diverticulosis
The chronic presence of an abnormal number of diverticula in the colon. Diverticul means diverticulum, -osis means abnormal condition or disease. Often has no symptoms, is believed to be related to a low-fiber diet
Dyspepsia
Pain or discomfort in digestion, also known as indigestion. Dys-means painful, -pepsia means digestion
Dysphagia
Difficulty in swallowing. Dys- means difficult, -phagia means swallowing
Enema
The placement of a solution into the rectum and colon to empty the lower intestine through bowel activity. Is sometimes part of the preparation for an endoscopic examination, however, enemas are also used to treat severe constipation and as a means of injecting medication into the body
Enteritis
Inflammation of the small intestine caused by eating or drinking substances contaminated with viral or bacterial pathogens. Enter means small intestine, -itis means inflammation
Eructation
The act of belching or raising gas orally from the stomach
Esophageal varices
Enlarged and swollen veins at the lower end of the esophagus. Singular varix. Severe bleeding occurs if one of these veins ruptures
Esophagogastroduodenoscopy
An endoscopic procedure that allows direct visualization of the upper GI tract, this includes the esophagus, stomach, and upper duodenum. Esophag/o means esophagus, gastr/o means stomach, duoden/o means duodenum, -scopy means visual examination
Gastroduodenostomy
The establishment of an anastomosis between the upper portion of the stomach and the duodenum. Gastr/o means stomach, duoden means first part of the small intestine, -ostomy means surgically creating an opening. This procedure is performed to treat stomach cancer or to remove a malfunctioning pyloric valve
Gastroesophageal reflux disease
The upward flow of acid from the stomach into the esophagus, also known as GERD. Gastr/o means stomach, esophag means esophagus, -eal means pertaining to. When this occurs, the stomach acid irritates and damages the delicate lining of the esophagus
GERD
Gastroesophageal reflux disease
Gastrostomy tube
The surgical placement of a feeding tube from the exterior of the body directly into the stomach. Gastr means stomach, -ostomy means surgically creating an opening. This is also known as G-tube. It is permanently placed to provide nutrients for patients who cannot swallow or take sufficient nutrients by mouth
Hematemesis
The vomiting of the blood. Hemat means blood, -emesis means vomiting. The substance that is vomited often resembles coffee grounds
Hemoccult test
A laboratory test for hidden blood in the stools, also known as fecal occult blood test. Hem means blood, -occult means hidden. The test kit is used to obtain the specimens at home, and the results are then evaluated in a laboratory.
Hepatitis
Inflammation of the liver usually caused by a viral infection. Hepat means liver, -itis means inflammation.
Herpes labialis
Blisterlike sores on the lips and adjacent tissue caused by the oral herpes simplex virus type 1 (HSV-1), also known as cold sores or fever blisters
Hiatal hernia
An anatomical abnormality in which a portion of the stomach protrudes upward into the chest through an opening in the diaphragm . Hiat means opening, -al means pertaining to. This condition can cause GERD and pyrosis
Hyperemesis
Extreme, persistent vomiting that can cause dehydration. Hyper- means excessive, -emesis means vomiting. During the early stage of pregnancy, this is known as morning sickness
Ileus
The partial or complete blockage of the small intestine, large intestine, or both caused by the stopping of normal peristalsis. Also known as paralytic ileus. Symptoms can include severe pain, cramping, abdominal distention, vomiting and the ability to pass gas or stools
Inguinal hernia
The protusion of a small loop of bowel through a weak place in the lower abdominal wall or groin. Inguin means groin, -al means pertaining to. This condition can be caused by obesity, pregnancy, heavy lifting, or straining to pass a stool
Jaundice
A yellow discoloration of the skin, mucous membranes, and eyes caused by greater-than-normal amounts of bilirubin in the blood
Leukoplakia
An abnormal white precancerous lesion (sore) that develops on the tongue or the inside of the cheek. Leuk/o means white, -plakia means plaque. These lesions develop in response to chronic irritation in the mouth such as constant rubbing against a broken tooth
Melena
The passage of black, tarry, and foul-smelling stools that is caused by the presence of digested blood and often indicates bleeding in the upper part of the gastrointestinal tract
Morbid obesity
The condition of weighing two or more times the ideal weight or having a body mass index value greater than 40, also known as severe obesity
Nasogastric intubation
The placement of a feeding tube through the nose and into the stomach. NG tube. Nas/o means nose, gastr means stomach, -ic means pertaining to. This tube which is placed temporarily, provides nutrition for patients who cannot take sufficient nutrients by mouth
Obesity
An excessive accumulation of fat in the body. Frequently present as a comorbidity with conditions such as hypertension
Palatoplasty
The surgical repair of a cleft palate or cleft lip. Palat/o means palate, -plasty means surgical repair
Peptic ulcers
Sores that affect the mucous membranes of the digestive system caused by the bacterium Helicobacter pylori by medications, such as aspirin, that irritate the mucous membranes. The condition of having peptic ulcers is referred to as peptic ulcer disease
Peristalsis
A series of wavelike contractions of the smooth muscles in a single direction that moves the food forward into the digestive system. In the esophagus, food moves downward through the action of gravity and peristalsis
Polyp
A mushroomlike growth from the surface of a mucous membrane, not all polyps are malignant
Proctologist
A physician who specializes in disorders of the colon, rectum, and anus. Proct means anus and rectum, -ologist means specialist
Regurgitation
The return of swallowed food into the mouth
Salmonellosis
An infectious disease of the intestines that is transmitted by food contaminated with feces, either through direct contact with animals, or by eating contaminated raw or undercooked meats and eggs or unpasteurized milk and cheese products. also referred to as salmonella
Sigmoidoscopy
The endoscopic examination of the interior of the rectum, sigmoid colon, and possibly a portion of the descending colon. Sigmoid/o means sigmoid colon, -scopy means visual examination
Stomatitis
An inflammation of the mucosa of the mouth. Stomat means mouth or oral cavity, -itis means inflammation.
Trismus
Any restriction to the opening of the mouth caused by trauma, surgery, or radiation associated with the treatment of oral cancer. This condition causes difficulty in speaking and affects the patient’s nutrition due to impaired ability to chew and swallow
Ulcerative colitis
A chronic condition of unknown cause in which repeated episodes of inflammation in the rectum and large intestine cause ulcers (lesions in the mucous membrane) and irritation. Col means colon, -itis means inflammation. Usually starts in the rectum and progressesupward to the lower part of the colon, however it can affect the entire large intestine. Affects only the innermost lining and not the deep tissues of the colon
Volvulus
Twisting of the intestine upon itself, causing the obstruction. Volvulus is a Latin word meaning rolled up ot twisted. This condition can caused necrosis of the affected segment of the bowel
Xerostomia
The lack of adequate saliva due to diminished secretions by the salivary glands, also known as dry mouth. Xer/o means dry, stom means mouth or oral cavity, -ia means pertaining to. This condition can be due to medications or radiation of the salivary glands, and can cause discomfort, difficulty in swallowing, changes in the taste of food, and dental decay
Gastrointestinal tract
Also known as GI tract. Digestive system consists primarily of GI tract. Gastr/o means stomach, intestin means intestine, -al means pertaining to. These organs work in cooperation with accessory organs
Accessory organs
Of the digestive system include the liver, gallbladder, and pancreas
Upper GI tract
Consists of the mouth, pharynx (throat) , esophagus, and stomach. This transports food from entry into the body until digestion begins in the stomach
Lower GI tract
Sometimes is referred to as the bowels. Is made up of the small and large intestines plus the rectum and anus. Here digestion is completed and waste material is prepared for expulsion from the body
Oral cavity
Also known as the mouth, major structures are the lips, hard and soft palates, salivary glands, tongue, teeth, and periodintium
Lips
Also known as labia, surrounds the opening to the oral cavity. Singular labium. During eating, the lips, tongue and cheeks hold the food in the mouth. The lips also have important roles in breathing, speaking, and the expression of emotions
Palate
Forms the roof of the mouth,
3 major parts of the palate
- Hard palate
- Soft palate
- Uvula
Hard palate
Anterior portion of the palate. This area is covered with specialized mucous membrane
Rugae
Irregular ridges or folds in this mucous membrane. Singular ruga
Soft palate
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
Uvula
It hangs from the free edge of the soft palate. During swallowing, it moves upward with the soft palate. It also plays an important role in snoring and in formation of some speech sounds
Tongue
Very strong, flexible, and muscular. The posterior portion of the tongue is attached. The anterior end of the tongue moves freely and is flexible. It is the structure of the tongue that makes it important for chewing, speaking, and swallowing
Dorsum
Upper surface of the tongue. This surface have a tough protective covering
Papillae
Small bumps on the upper surface of the tongue. Singular papilla. Contain taste buds
Taste buds
Sensory receptors for the sense of taste
Sublingual surface
Of the tongue and the tissues that lie under the tongue are covered with delicate highly vascular tissues. The presence if this rich blood supply under the tongue makes it suitable for administering certain medications sublingually by placing them under the tongue, where they are quickly absorbed into the bloodstream
Sublingual
Under the tongue
Highly vascular
Containing many blood vessels
Lingual frenum
Band of tissue that attaches the tongue to the floor of the mouth. This frenum limits the motion of the tongue
Periodontium
Describes the structures that surround, support, and are attached to the teeth. Peri- means surrounding, odonti means the teeth, -um means noun ending. This consists of the bone of the dental arches and the soft tissues that surround and support the teeth
Gingiva
Also known as masticatory mucosa or the gums. Specialized mucous membrane that covers the bone of the dental arches and surrounds the neck of the teeth. Plural gingivae
Sulcus
An area of space between a tooth and the surrounding gingiva. Plural sulci. A buildup of food debris and bacteria in the sulcus can lead to infection.
Dental arches
The bony structures of the oral cavity. These arches hold the teeth firmly in position to facilitate chewing and speaking
Maxillary arch
Commonly known as the upper jaw and consists of bones of the lower surface of the skull. This such does not move
Mandibular arch
Commonly known as the lower jaw. A separate bone and is the only movable component of the joint
Temporomandibular joint
Commonly known as TMJ. Formed at the back of the mouth where the Maxillary and mandibular arches come together
TMJ
Temporomandibular joint
Dentition
Refers to the natural teeth arranged in the upper and lower jaws
4 types of teeth
- Incisors
- Canines
- Premolars
- Molars
Incisors
Canines
Canines are also known as cuspids.
These teeth are used for biting and tearing
Premolar
Molars
Premolar are also known as bicupsids
These teeth are used for chewing and grinding
Primary dentition
Also known as deciduous dentition or baby teeth. 20 teeth erupt during early childhood. Consists of 8 incisors, 4 canines, 8 molars but no premolars
Permanent dentition
Consists of 32 teeth designed to last a lifetime. 20 replace primary dentition and 12 erupt at back of the mouth. Include 8 incisors, 4 canines, 8 premolars, and 12 molars
Occlusion
Used in dentistry to describe any contact between the chewing surfaces of the upper and lower teeth
Crown
The portion of the tooth that is visible in the mouth. It is covered with enamel
Enamel
Hardest substance in the body
Roots
Of the tooth hold it securely in placecwithin the dental arches. Roots are protected by cementum
Cementum
Substance is hard but it is not as strong as enamel
Cervix
Also known as the neck of the tooth. Where the crown and root meet
Dentin
Makes up the bulk of the tooth. The portion that is above the gum line is covered with enamel . The root area is covered with cementum
Pulp cavity
The area within the crown and roots of the tooth that is surrounded by the dentin to protect the delicate Pulp of the tooth. In the roots, the Pulp continues in the space known as the root canals
Root canals
The space in the roots where the Pulp continues
Pulp
Consists of a rich supply of blood vessels and nerves that provide nutrients and innervation to the tooth
Saliva
Colorless liquid that maintains the moisture in the mouth. It helps maintain the health of the teeth, and it begins the digestive process by lubricating food during chewing and swallowing (mechanical digestion). Also contains the digestive enzyme amylase and is the first step in chemical digestion
Amylase
Digestive enzyme that is found in saliva and is the first step in chemical digestion
3 pairs of salivary glands
Secrete saliva that is carried by ducts into the mouth
1. Parotid glands
2. Sublingual glands
3. Submandibular glands
Parotid glands
Located on the face, slightly in front of each ear. The ducts for these glands are on the inside of the cheek near the upper molars
Sublingual glands
Along with their ducts are located on the floor of the mouth under the tongue
Submandibular glands
Along with their ducts are located on the floor of the mouth near the mandible
Pharynx
Common passageway for both respiration and digestion. Plays an important role in deglutition
Deglutition
Commonly known as swallowing
Epiglottis
A lid-like structure that closes off the entrance to the trachea (windpipe) to prevent food and liquids from moving from the pharynx during swallowing
Esophagus
The muscular tube through which ingested food passes from the pharynx to the stomach
Lower esophageal sphincter
Also known as cardiac sphincter. A muscular ring between the esophagus and stomach. During swallowing, it relaxes to allow food to enter the stomach. This sphincter normally opens to allow the flow of food into the stomach and closes to prevent the stomach contents from regurgitating into the esophagus
Regurgitating
Flowing backward
Stomach
A sac-like organ composed of the fundus, body, antrum
Fundus
Part of stomach that is upper, rounded part
Body
Part of stomach that is the main portion
Antrum
Part of stomach that is lower part
Rugae
The folds in the mucosa lining of the stomach. These folds allow the stomach to increase and decrease in size. Glands located within these folds produce gastric juices
Gastric juices
Made up of enzymes and hydrochloric acid aid in the beginning of food digestion. Mucus produced by glands in the stomach create a protective coating on the lining of the stomach
Pyloric sphincter
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
Pylorus
The narrow passage that connects the stomach with the small intestine
Small intestine
Extends from the pyloric sphincter to the first part of the large intestine. This coiled organ is up to 20 feet in length and consists of 3 sections where food is digested and the nutrients are absorbed into the bloodstream
3 sections of small intestine
- Duodenum
- Jejunum
- Ileum
Duodenum
The first portion of the small intestine. Extends from the pylorus of the stomach to the jejunum
Jejunum
Middle portion of the small intestine. Extends from the duodenum to the lieum
Ileum
Last and longest portion of the small intestine. Extends from the jejunum to the cecum of the large intestine
Large intestine
Extends from the end of the small intestine to the anus. It is about twice as wide as the small intestine, however it is only 1/4 as long. It is here that the waste products of digestion are processed in preparation for excretion through the anus. Major parts of the large intestine are cecum, colon, rectum, anus
4 major parts of the large intestine
- Cecum
- Colon
- Rectum
- Anus
Cecum
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
Ileocecal sphincter
The ring-like muscle that controls the flow from the ileum of the small intestine into the cecum of the large intestine
Vermiform appendix
Commonly called the appendix, hangs from the lower portion of the cecum. Appendix consists of lymphoid tissue