Abdomen Flashcards
What is the alimentary system
GI tract (27ft long) Includes mouth, esophagus, stomach, SI, LI
Function of the alimentary system
- Ingest/digest food
- Absorb nutrients, electrolytes, and h20
- Excrete waste products
How are food and products moved through the alimentary system
Via peristalsis/ANS control
What does the stomach secrete
HCL acids, breaks down food
How long is the SI
21ft long
Function of SI
Breakdown food with pancreatic enzymes and bile. Absorbs nutrients. Villi increases surface area
3 parts of the SI
- Duodenum
- Jejunum
- Ileum
What 2 ducts enter at the duodenum
- common bile duct
2. pancreatic duct
How long is the LI
4.5-5ft
Function of LI
- Absorb water
2. Transport waste
What is the hepatobiliary tract
System of organs that works together to form bile and aid in digestion
How many lobes does the liver have
4, each containing lobules
What is the liver lobule made of
Liver cells that radiate around a central vein
Path of bile secretion
Liver cells - bile ducts - hepatic duct - joins cystic duct (GB) - forms the common bile duct
which liver veins dump back into the IVC
hepatic veins
What vein receives blood from the intestine and spleen
The portal vein
Where is the GB located
Inferior surface of the liver
Function of the liver
- Metabolizes carbs, fats, proteins
- Glucose is converted and stored as glycogen
- Amino acid conversion to glucose (glucogenesis)
- Converts cholesterol to bile salts
- Stores vitamins
- Detoxifies
- Protein production
what 2 ducts for the common bile duct
cystic and hepatic ducts
What does the GB do
stores and releases bile salts to aid in digestion
Where is the pancreas
Behind and under the stomach, head rests in curve of duodenum
What kind of gland is the pancreas
exocrine(enzymes for digestion) and endocrine(insulin)
What are the cells in the pancreas
acinar cells and islet cells
What do acinar cells do
Produce enzymes for digestion of fat, protein and carbs
what is another name for pancreatic duct
duct of wirsung
What are they islet cells responsible for
Insulin and glucagon (insulin)
Where is the spleen
LUQ, above L kidney
What is the spleen made up
white pulp, very fragile (lymphoid tissue) and red pulp
What does the white pulp do
Filters blood and makes lymphocytes/monocytes
What does the red pulp do
Stores and releases blood
Why do you auscultate 2nd in abdominal exam?
Because percussion and palpation may alter the frequency and intensity of the bowel sounds
What are the types of venous patterns
- normal
- portal hypertension
- IVC obstruction