Lesson 85 and 86a: Large Intestine Anatomy

cecum

1

rectum

2

colon

3

duodenocolic fold

4

cecum

1

colon

2

root of mesentery

3

duodenocolic fold

4

ileocolic sphincter

1

cecocolic sphincter

2

cecocolic fold

cecum

dog:

- twisted and traps gas that can be seen in the radiograph

- on the right side near the abdominal roof

mesocolon

peritoneum of the colon

transverse colon

1

ascending colon

2

descending colon

3

right colic/hepatic flexure

1

left colic/splenic flexure

2

transverse colon

1

right colic/hepatic flexure

2

ascending colon

3

left colic/splenic flexure

4

descending colon

5

cecum

1

rectum

2

retroperitoneal rectum

outside the peritoneum

mesorectum

peritoneum of the rectum

columnar zone

anal canal:

1

cutaneous zone

anal canal:

2

paranal sinus (anal glands)

3

external anal sphincter

1

internal anal sphincter

2

ileocolic artery/common trunk

Large intestine blood supply:

3

middle colic artery

Large intestine blood supply:

4

right colic artery

Large intestine blood supply:

5

colic branch

Large intestine blood supply:

6

antimesenteric ileal artery

Large intestine blood supply:

8

caudal mesenteric artery

Large intestine blood supply:

10

left colic artery

Large intestine blood supply:

11

cranial rectal artery

Large intestine blood supply:

12

caudal mesenteric artery

Large intestine blood supply:

1

left colic artery

Large intestine blood supply:

2

cranial rectal artery

Large intestine blood supply:

3

internal pudendal artery

Large intestine blood supply:

4

vaginal/prostatic artery

Large intestine blood supply:

5

middle rectal artery

Large intestine blood supply:

6

caudal rectal artery

Large intestine blood supply:

7

carnivores

species

pig

species

ruminant

species

horses

species

jejunal lymph nodes in mesojejunum

ruminants

2.5

Cattle have ______ turns of the ascending colon

3

Sheep have ______ turns of the ascending colon

4

Goats have ______ turns of the ascending colon

pelvic flexure

Large intestine of horse:

1

cecocolic fold

Large intestine of horse:

2

right ventral colon

Large intestine of horse:

3

right dorsal colon

Large intestine of horse:

4

sternal flexure

Large intestine of horse:

5

diaphragmatic flexure

Large intestine of horse:

6

left ventral colon

Large intestine of horse:

7

left dorsal colon

Large intestine of horse:

8

taeniae coli

Large intestine

1

haustra

Large intestine

2

4

Horse

- cecum always has _____ taeniae coli

cecocolic fold

horse cecum

cecocolic orifice

horse cecum

1

right ventral colon

horse cecum

2

base

1

- palpable per rectum

body

2

apex

3

3

Horse

- right dorsal colon always has _____ taeniae coli

4

Horse

- right ventral colon always has _____ taeniae coli

4

Horse

- left ventral colon cum always has _____ taeniae coli

1

Horse

- left dorsal colon always has _____ taeniae coli

2

Horse

- descending (small) colon always has _____ taeniae coli