TOPIC 11C. The hindgut of carnivores and horses, blood supply and innervation

Question 1

what is the hindgut

Answer 1

caudal part of embryonic gut:

cecum, colon and rectum

Question 2

where does the hindgut start and end

Answer 2

ostium ileocecale to anus

Question 3

where does the caecum lie in car

Answer 3

right half abdomen except in sus

Question 4

is the caecum in direct communication with the ileum in car?

Answer 4

no - joins it via plica ileocaecalis

Question 5

describe shape of caecum in car and feq

Answer 5

spiral and comma shapes

Question 6

arrangement of colo in ca and fe

Answer 6

colon ascendens, 
right colic flexure
transverse colon
left colic flexure
descending colon
rectum

Question 7

which part of colon connects with ascending duodenum and via what

Answer 7

descending colon - via plica duodenocolica

Question 8

what artery supplies the caecum in car

Answer 8

a caecalis ex a ileocolica

Question 9

which artery supplies the colon ascendens in car

Answer 9

r colicus ex a ileocoelica

a colica dextra ex a. mes cran

Question 10

which artery supplies the transverse colon in car

Answer 10

a colica media (ex a mes cran)

Question 11

which artery supplies the descending colon in car

Answer 11

a colica sinistra (ex a mes caud)

Question 12

which artery supplies the rectum in car

Answer 12

a rectalis cran (ex a mes caud)

Question 13

which nerves innervate the colon in car and eq

Answer 13

S - plpexus mesenterica cran and caud

PS - vagus and pelvic

Question 14

caecum in horses

Answer 14

30 L

cellulose digestion

Question 15

where does ileum open in eq

Answer 15

papilla ilealis - ostium ilealis

Question 16

where does caecum open into colon in eq

Answer 16

ostium caecocolicum

Question 17

what bands/sacs does eq caecum have

Answer 17

4 and 4

Question 18

what are the bands in eq and what do they create

Answer 18

dorsal, ventral, medial and lateral
dorsal - plica ileocaecalis
lateral - plica caecocolica

Question 19

how is the colon arranged in eq

Answer 19

2x U shaped loops - colon ascendens
transverse short and
desc long and thin

Question 20

what does large colon consist of in eq

Answer 20

ascending and transverse

Question 21

what does small colon consist of in eq

Answer 21

descending colon

Question 22

how many taniae in ascending colon of eq

Answer 22

8

Question 23

name parts of ascending colon in horse

Answer 23

right ventral colon
sternal flexure
left ventral colon
pelvic flexure
left dorsal colon
diaphragmatic flexure
right dorsal colon

Question 24

what do the ventral parts of the eq colon do

Answer 24

digest and absorb

Question 25

what do the dorsal parts of the eq colon do

Answer 25

transport ingesta

Question 26

which direction does eq transverse colon travel

Answer 26

from right to left

Question 27

colon descendens in eq

Answer 27

linger than in any other species

has 2x taenia and haustra

Question 28

what artery supplies eq caecum

Answer 28

a caecalis med and lat

Question 29

what artery supplies eq colon transverse

Answer 29

a colica dextra and media

Question 30

what artery supplies eq colon ascendens

Answer 30

r colicus and a colica dextra

Question 31

what artery supplies eq colon descendens

Answer 31

a colica sin