Digestive System 2 Flashcards
What are the 6 functions of the liver?
Bile Production
Storage
Nutrient Interconversion
Detoxification
Phagocytosis
Synthesis
What is the role of bile produced in the liver?
Neutralizes and dilutes stomach acid
Bile salts emulsify fats. Most are reabsorbed in the ileum
How much bile is produced within the liver in a day?
600 - 1000 ml / day
What are the contents of bile produced in the liver?
Bile Salts
Cholesterol
Fats
Fat-Soluble Hormones
Lecithin
What stimulates bile secretions in the liver?
Secretin (from the duodenum)
Secretin (from the d______) stimulates b_____ secretions,
increasing w_____ and b_______ ion content of the b_____
Secretin (from the duodenum) stimulates bile secretions,
increasing water and bicarbonate ion content of the bile
What contents does the liver store?
Glycogen
fat
vitamins
copper
iron.
H_____ p____ blood
comes to liver from small intestine
Hepatic portal blood
comes to liver from small intestine
What is meant by the term ‘detoxification’ as one process of the liver?
Hepatocytes remove ammonia and convert to urea
What substances does the liver also produce?
Albumins
fibrinogen
globulins
heparin
clotting factors
What is the difference between endocrine and exocrine glands in the pancreas?
Endocrine: pancreatic islets. Produce insulin, glucose, and somatostatin
Exocrine: grape-like clusters form lobules separated by septa
What does the large intestine consist of?
Consists of:
cecum
colon
rectum
anal canal
What is the movement time in the large intestine?
18-24hrs chyme (partially digested food)
What % volume of chyme is reabsorbed in the large intestine?
90%
What is the anatomy of the Cecum of the large intestine?
Blind sac
appendix attached
Located between the ileum (distal small bowel) and the ascending colon