Large Intestines

Question 1

what is the main function of the large intestines

Answer 1

fluid absorption

Question 2

what are the 3 parts of the large intestine

Answer 2

1 - caecum - appendix joined to this
2 - colon - ascending, transverse, desscending and sigmoid region
3 - rectum - followed by anal canal

Question 3

hepatic flexure

Answer 3

bend of large intestines at liver (between ascending and transverse parts )

Question 4

splenic flexure

Answer 4

bend of large intestines at spleen (between transverse and descending parts)

Question 5

taenia coli

Answer 5

band of longitudnal muscle found on the large intestines (except rectum)

Question 6

appendicies epiploicae

Answer 6

fatty tags around taenia coli

Question 7

haustra(e)

Answer 7

pouches of colon in large intestine

Question 8

what are the two sphincters in the anal canal

Answer 8

internal sphincter - smooth muscle , involuntary

external sphincter - skeletal muscle, voluntary

Question 9

ileo-caecal valve

Answer 9

fold of mucosa that allows chyme to pass from S.I to L.I but not vice versa

Question 10

what does overabsorption and failure to reabsorb in the colon result in

Answer 10

overabsorption - constipation

failure - diarrohea

Question 11

peristalsis in large intestine

Answer 11

happens frequently, moves fecal matter towards rectum

Question 12

mass movements in large intestine

Answer 12

infrequent, prolonged peristalsis contraction, breaks big things down and rapidly moves them from transverse colon to rectum

Question 13

ileostomy, colonostomy

Answer 13

either ileum or colon brought to skin surface via opening called stoma. Faeces is collected in a bag that needs changed regularly