GI: Anatomy and Function

Question 1

What is the role of the Duodenum?

Answer 1

Neutralizes acid in food from the stomach and mixes pancreatic and biliary secretions

Question 2

What is the role of the Jejumum?

Answer 2

Absorbs water, electrolytes and nutrients

Question 3

What is the role of the Ileum?

Answer 3

Absorbs bile and intrinsic factors to be recycled

Question 4

What is the role of the Ascending/Transverse/Descending colon, sigmoid colon, rectum and anus?

Answer 4

Continue to absrob water and electrolytes, stores and eliminates undigested food as feces

Question 5

What is the role of the Gallbladder?

Answer 5

Stores and releases bile into the duodenum to assist with digestion

Question 6

What is the role of the Liver?

Answer 6

Bile is produced and is necessary for absorption of lipid soluble substances, assist with red blood cell and vitamin K production, regulates serum level of carbohydrates, proteins, and fats

Question 7

What is the role of the Pancreas?

Answer 7

• Exocrine: Secretes bicarbonate and digestive enzymes into the duodenum
• Endocrine: Secretes insulin, glucagon, and other hormones into the blood to regulate serum glucose level