Digestive system

Question 1

Structure of peritoneum

Answer 1

Serous membrane lining abdominal cavity -> parietal + visceral

-> contains mesentery = double layer of peritoneum connecting organs to body

Question 2

3 functions of peritoneum

Answer 2

• absorption + dialysis
• pathway for nerves, vessels + lymphatics
• allows mobility of gut

Question 3

Function, innervation + blood supply of stomach

Answer 3

• softens + mixes food w/ gastric juices in peristalsis
• vagus nerve
• gastric arteries from celiac trunk

Question 4

Function + blood supply of liver

Answer 4

• synthesises bile + detoxifies harmful substances
• hepatic vein + artery

Question 5

Gallbladder function

Answer 5

collects + stores bile

Question 6

Pancreas function

Answer 6

create + secrete digestive enzymes + hormones

Question 7

Small intestine function, structure + blood supply

Answer 7

• duodenum, jejunum (upper 2/5), ileum (lower 3/5)
• site of digestion + absorption
• celiac trunk + mesenteric arteries

Question 8

Caecum function

Answer 8

collects + stores material from small intestine

Question 9

Appendix function

Answer 9

• stores good bacteria
• blind tube

Question 10

Anal canal

Answer 10

• internal + external sphincters
• inferior mesenteric artery