Lecture 2 Flashcards
Dysphagia
difficulty swallowing Causes: Esophageal stenosis or stricture Esophageal diverticula Esophageal tumors Stroke Cerebral damage
Dysphasia
difficulty speaking
Emesis
vomitus
Hematemesis
blood in the vomit
Has a characteristic “coffee grounds” appearance resulting from protein in the blood being partially digested
Blood is irritating to the gastric mucosa
Upper GI bleeding is often the cause
Colic
pain in the abdomen, usually caused by gas
Leukocytosis
increased white blood cells in blood
Jaundice
yellowing of tissues due to increased levels of bilirubin
“Frank” Blood
obvious blood
Occult Blood
“hidden” blood, not obvious
Melena
black “tarry” feces from blood
Exudate
drainage produced from infection or inflammation
Gangrene
death of body tissue
sepsis
infection in the blood
Ascites
fluid collection in the abdomen
Steatorrhea
high fat content in the feces
Hepatic
of the liver
Peritoneum
space around abdominal organs
Stenosis
narrowing
Peristalsis
movement of colonic smooth muscle
Intrathoracic
inside the chest
Carcinoma
cancerous
Atrophic
wasting of body tissue
Epigastric
upper central region of abdomen
Perforation
a hole made by “piercing”
Arthralgia
joint pain
Calculi
stone in the body
Autoimmune
abnormal immune response to the body’s own tissues
Hyperplasia
increase in tissue cell production
Percutaneous
through the skin
Permucosa
through the muscosa
Fibrosis
excessive formation of connective tissue
Encephalopathy
brain disease
“Chole”
of the gallbladder
Malabsorption
poor absorption
Gastrointestinal System
Consumes, digests, and eliminates food
Includes
Upper Division: oral cavity, pharynx, esophagus, and stomach
Lower Division: small intestine, large intestine, and anus
Hepatobiliary System: liver, gallbladder, and pancreas
Four Layers
mucosa, submucosal(contains blood vessels, nerve), muscle, serosa
Peritoneum
large serous membrane that lines the abdominal cavity – IS STERILE!
Peritoneal cavity
space between the two layers
Gastric motility
Peristalsis
Small intestinal motility
Segmentation and peristalsis
Colonic motility
Haustrations and propulsive mass movement
Oral phase
swallowing
voluntary
Pharyngeal phase
involuntary; prevents from food entering the nasopharynx when a patient is eating
Esophageal phase
involuntary
Initiates peristalsis
Primary versus secondary
The mesentery contains the intestine’s blood supply.
True
Bilirubin
is the byproduct of the breakdown and release of hemoglobin from old red blood cells becomes unconjugated bilirubin.
Liver
links unconjugated bilirubin in blood to glucuronide –> conjugated bilirubin–> bile
Excess unconjugated bilirubin in blood
bilirubinemia–> jaundice
What causes jaundice?
Increase in bilirubin levels
Liver
Main functions
- Metabolize carbohydrates, protein, and fats
- Metabolize medications to prepare them for excretion
- Synthesize glucose, protein (Albumin), cholesterol, triglycerides, and clotting factors.
- Detoxify blood of potentially harmful chemicals
- Maintain intravascular fluid volume – Colloidal ONCOTIC PRESSURE (Albumin)!
- Produce bile
- Remove damaged or old erythrocytes to recycle iron and protein (this cycle produces the waste product bilirubin).
- Serve as a blood reservoir-VERY VASCULAR
Pancrease
Exocrine functions: produces enzymes (lipase, amylase, protease), electrolytes, sodium bicarbonate, and water necessary for digestion
Endocrine function: produces hormones to help regulate blood glucose (glucagon, insulin, amylin) – key organ in blood glucose regulation
Gall Bladder
stores bile produced by the liver
Lower GI tract
Continues digestion
Absorbs nutrients and water
Cleft lip and Palate
Common congenital defects of the mouth and face
Apparent at birth and vary in severity
Usually develop in the 2nd or 3rd month of gestation
Multifactoral in origin
Can affect the one’s appearance
May lead to problems with feeding, speech, ear infections, and hearing problems
May occur separately or together
Cleft palate results from failure of the hard and soft palate to fuse in development
Teeth and nose malformations may also be present
Cleft lip and palate treatment
Temporary measures (e.g., special nipples or dental appliances) Surgical repair, cosmetic plastic surgery, Speech therapy, orthodontist consultation, and multidisciplinary case management
Pyloric Stenosis
Narrowing and obstruction of the pyloric sphincter.
May be present at birth or develop later in life
The exact cause of pyloric stenosis is unknown
Most common in Caucasians and males
Pyloric Stenosis Manifestations
Dysphagia: difficulty swallowing A hard mass in the abdomen, Regurgitation, Projectile vomiting, Wavelike stomach contractions, Small and infrequent stools, Failure to gain weight, Dehydration
Dysphagia
Sensation of food being stuck in the throat Choking Coughing “pocketing” food in the cheeks Difficulty forming a food bolus Delayed swallowing
Vomiting
Involuntary or voluntary forceful ejection of chyme from the stomach up through the esophagus and out the mouth
Vomiting causes
protection, reverse peristalsis, increased intracranial pressure, and severe pain
Involuntary vomiting sequ
A deep breath is taken.
The glottis closes and the soft palate rises.
Respirations cease to minimize the risk of aspiration.
The gastroesophageal sphincter relaxes.
Abdominal muscles contract, squeezing the stomach against the diaphragm and forcing the chyme upward into the esophagus.
Reverse peristaltic waves eject chyme out of the mouth.
Involuntary vomiting sequence
A deep breath is taken.
The glottis closes and the soft palate rises.
Respirations cease to minimize the risk of aspiration.
The gastroesophageal sphincter relaxes.
Abdominal muscles contract, squeezing the stomach against the diaphragm and forcing the chyme upward into the esophagus.
Reverse peristaltic waves eject chyme out of the mouth.
Yellow or green colored vomitus
Usually indicates the presence of bile
GI tract obstruction