pathology of colon Flashcards
1
Q
length of small bowel
A
~6m
2
Q
3 parts of SI?
A
duodenum
jejunum
ileum
3
Q
6 parts of large bowel?
A
caecum ascending colon transverse colon descending colon sigmoid colon rectum
4
Q
how is ascending colon peritonised?
A
retro
5
Q
how is descending colon peritonised?
A
retro
6
Q
how is rectum peritonised?
A
outside of peritoneal cavity - extraperitoneal
7
Q
length of rectum?
A
15cm
8
Q
LB - stem cell turnover?
A
~1 week
9
Q
LB - surface?
A
columnar absorptive cells
no villi therefore flat
10
Q
crypts in LB?
A
long tubular crypts
11
Q
faeces before and after LB?
A
before - wet and not solid
after - dry and solid
12
Q
SB - 3 types of cells?
A
goblet cells
columnar absorptive cells
endocrine cells
13
Q
SB - villi?
A
present on surface
14
Q
SB - location of nerves and vessels?
A
submucosa
15
Q
SB and LB - intrinsic mechanism for peristalsis?
A
myenteric plexus
