Large intestine

Question 1

Length of transverse colon

Answer 1

38 cm

Question 2

Length of sigmoid colon

Answer 2

25 to 38 cm

Question 3

Length of descending colon

Answer 3

25 cm

Question 4

Length of Rectum

Answer 4

13 cm

Question 5

Length of Ascending colon

Answer 5

13 cm

Question 6

Length of Anal Colon

Answer 6

4 cm

Question 7

Length of cecum

Answer 7

6 cm

Question 8

Blood supply of cecum

Answer 8

anterior and posterior cecal artery from ileocolic from SMA

Question 9

Venous drainage of cecum

Answer 9

anterior and posterior cecal vein from ileocolic vein from SMV

Question 10

Length of appendix

Answer 10

6 to 10 cm

Question 11

Most common position of appendix

Answer 11

retrocecal

Question 12

blood supply of appendix

Answer 12

appendicular artery from ileocolic artery from SMA

Question 13

venous drainage of appendix

Answer 13

appendicular vein from posterior cecal vein from SMV

Question 14

what nerve maybe injured in appendectomy

Answer 14

iliohypogastric nerve

Question 15

most common cause of appendicitis

Answer 15

children: hyperplasia of lymphatic tissue
adult: fecalith

Question 16

blood supply of ascending colon

Answer 16

Ileocolic and right colic artery from SMA

Question 17

venous drainage of ascending colon

Answer 17

ileocolic and right colic vein from SMV

Question 18

blood supply of transverse colon

Answer 18

right colic from SMA
middle colic from SMA
left colic from IMA

Question 19

venous drainage of transverse colonc

Answer 19

right colic from SMV
middle colic from SMV
left colic from IMV

Question 20

blood supply of descending colon

Answer 20

left colic from IMA

left sigmoid from IMA

Question 21

venous drainage of descending colon

Answer 21

left colic from IMV

left sigmoid from IMV

Question 22

relations of sigmoid colon

Answer 22

anterior
1. male - urinary bladder
2. female - uterus and vagina
posterior
1. rectum
2. sacrum

Question 23

blood supply of sigmoid colon

Answer 23

sigmoid artery from IMA

Question 24

venous drainage of sigoid colon

Answer 24

sigmoid vein from IMV

Question 25

location of sigmoid colon

Answer 25

iliac fossa to S3

Question 26

location of rectum

Answer 26

S3 to tip of coccyx

Question 27

It is a mucosal infolding that divides the rectum in to 3 parts

Answer 27

valves of houston

Question 28

blood supply of rectum

Answer 28

1. superior rectal from IMA 2. middle rectal from Internal iliac artery 3. inferior rectal from internal pudendal artery

Question 29

venous drainage of rectum

Answer 29

1. superior rectal to IMV 2. middle rectal to Internal iliac vein 3. inferior rectal to internal pudendal vein to internal iliac vein

Question 30

separates the anal canal into superior and inferior part

Answer 30

dentate line pectinate line anorectal line

Question 31

location of anal canal

Answer 31

from puborectalis to anus

Question 32

location of hemorrhoids

Answer 32

1. left lateral 2. right anterior 3. right posterior

Question 33

characteristics of the upper part of anal canal

Answer 33

1. hindgut 2. columnar epithelium 3. with anal columns 4. sensitive to stretch 5. superior rectal vessels 6. inferior mesenteric LN 7. internal hemorrhoids

Question 34

characteristic of the lower part of anal canal

Answer 34

1. ectoderm 2. stratified squamos epithelium 3. no anal columns 4. sensitive to pain, temperature, pressure, touch 5. inferior rectal vessels 6. superficiial inguinal LN 7. external hemorrhoids

Question 35

Foregut nerve supply

Answer 35

parasympathetic: vagus nerve sympathetic: T5 - T9

Question 36

Midgut nerve supply

Answer 36

parasympathetic: vagus nerve sympathetic: T5 - T12

Question 37

Hindgut nerve supply

Answer 37

parasympathetic: pelvic splanchnic nerves S2 - S4 sympathetic: T11 - L2

Question 38

Pain in foregut

Answer 38

epigastric region

Question 39

pain in midgut

Answer 39

periumbilical region

Question 40

pain in hindgut

Answer 40

hypogastric region