0.1 Intro

Question 1

compare the structure of jejunum and ileum

Answer 1

• ileum is thinner
• ileum has less internal folds

Question 2

how does the mouth contribute to infection control?

Answer 2

lysozymes in saliva

Question 3

describe the chemical breakdown in stomach

Answer 3

-proteases create and acidic environment which denatures proteins
-intrinsic factor aids absorption of B12

Question 4

what is chyme?

Answer 4

fluid that passes out from stomach containing gastric secretions and partly digested food

Question 5

how do liver and pancreas connect to duodenum?

Answer 5

connect to second part through a common entrance to deliver bile and pancreatic secretions into gut tube

Question 6

why are short chain fatty acids made in large bowel?

Answer 6

to aid the correct environment for bacteria

Question 7

does large or small bowel absorb more water?

Answer 7

small

Question 8

what is the peritoneum made from?

Answer 8

layers of mesothelium: simple squamous epithelium

Question 9

what does the peritoneum secrete?

Answer 9

serous fluid into peritoneal cavity

Question 10

define intra peritoneal structures

Answer 10

peritoneum rests on surface of viscera of stomach, small intestine, liver… and envelops them

Question 11

define retroperitoneal structures

Answer 11

anterior viscera of kidneys, large bowel…. covered only.
forms a retroperitoneal space

Question 12

what’s a mesentery?

Answer 12

double layer of peritoneum which allows passage of blood vessels and lymph from retroperitoneal space to viscera without breaching peritoneal cavity

-main one is to small intestine

Question 13

why is the passage to the stomach NOT a mesentery?

Answer 13

too short

Question 14

peritoneal ligament

Answer 14

double folds of peritoneum connecting viscera e.g. liver to stomach

Question 15

benefit of mesentery

Answer 15

holds small bowel in place; prevents twisting on itself