Digestive system/abdominal quadrants Flashcards
Spleen
- recycles old blood cells, kills bacteria and other foreign particles, and plays an important role in the immune system.
- part of the lymphatic system
Splenomegaly
- enlargement of the spleen
- causes can be cancers because of the role the spleen plays in the immune system.
liver
functions:
- bile production;
- detoxification of drugs, metabolites, and poisons;
- storage of certain vitamins and nutrients,
- synthesis of blood plasma proteins
- 4 lobes
caudate Lobe
- on the inferior aspect of the liver
- this is posterior on the right lobe
quadrate lobes
- on the inferior aspect of the liver
- this is anterior on the right lobe
why does the inferior vena cava run through the liver
it picks up blood that has been processed by the liver on the way back to the heart
common hepatic artery
- supplies oxygenated blood to the liver
- smaller but thicker walled vessel
- a branch of the celiac trunk
hepatic portal vein
-carries blood from the digestive tract to the liver so that it can be processed and detoxifies
large intestine
-primary function is to absorb water
-has 5 sections:
cecum, ascending colon, transverse colon, descending colon, and sigmoid colon
appendix
- a small structure that shoots off the cecum
- has lymphatic and immune functions.
esophagus
located along the midline, just to the right of the descending aorta, posterior to the trachea
- transfers food to the stomach and has vertical folds that help aid in the process
inferior esophageal sphincter
- this is at the end of the esophagus
- this is also called the cardiac sphincter
rugae
-folds on the interior surface, are clearly visible that help churn and break down the food
the first region of the stomach
cardiac region
-closest to the espohagus
the most superior region of the stomach
the fundus
-this is dome shaped
