Section 8 - Gray Flashcards
1
Q
Describe how villi are adapted for absorption
A
One cell wall thick for diffusion, high surface area to volume ratio due to shape, supply of blood capillaries to maximise concentration gradients for absorption;
2
Q
Name the organ that produces lipase, proteases, maltase and amylase.
A
Pancreas
3
Q
Into which part of the alimentary canal does the pancreas secrete pancreatic juice?
A
duodenum
4
Q
Name the two parts of the small intestine
A
Duodenum and ileum
5
Q
Name the two parts of the large intestine
A
Colon and rectum
6
Q
Describe the role of the colon
A
Bulk water and salt reabsorption
7
Q
Describe the role of the rectum
A
Storage of faeces
8
Q
By what process is faeces removed from the anus?
A
Egestion
