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Flashcards in Large Intestine Deck (17):
1

Name the parts of the l.intestine

Cecum
Ascending colon
Transverse colon
Descending colon
Sigmoid colon
Rectum
Anal canal

2

Which part of the PERITONEUM is the l.intestine attached to?

Posterior abdominal wall by the mesocolon

3

Bend between the ascending colon and transverse colon

Right colic flexure

4

Bend between the transverse colon and spleen

Left colic flexure

5

Epithelium in the l.intestine

Non keratinised stratified squamous epithelium
@ Hilton's line becomes keratinised

6

Parts of the l.intestine that are RETROPERITONEAL

Ascending colon
Descending colon
Rectum

7

Parts of the l.intestine that are INTRAPERITONEAL

Transverse colon
Sigmoid colon

8

Blood supply to the l.intestine

First 2/3 SMA/SMV
Last 1/3 IMA/IMV

9

What is the GASTROILEAL REFLEX

Occurs after a meal to intensify peristalsis
Forces chyme into the cecum

10

Sphincter between the ileum and l.intestine

Ileocecal sphincter

11

Absorption that occurs in the l.intestine

Water
Ions
Vitamins

12

Process of chemical digestion in the l.intestine

Mucus secreted
Chyme eliminated by bacteria
Bacteria cause excess atoms to be released as flactulence
Decomposition of Bilirubin

13

Defecation reflex

Sensory nervous response due to the sacral spinal cord
Impulses travel via the PNS to the descending colon, sigmoid colon, rectum, anus
Contraction of longitudinal muscles
Opening of sphincters

14

Histology of l.intestine

Mucosa
Submucosa
Serosa

15

Function of the colon

Water absorption
Faeces formation
Vitamin B production

16

Stem cells differentiate to produce these 4 types of cell

Paneth
Goblet
Absorptive
Enteroendocrine

17

Role of PANETH cells

Breakdown bacteria due to containing lysosomes