Large Intestine

Question 1

Where is the cecum located

Answer 1

right illiac fossa

Question 2

what are the borders of the large intestine

Answer 2

illocecal junction to anus

Question 3

how long is large intestine

Answer 3

1.5 m

Question 4

is the rectum and anal canal part of the the large intestine

Answer 4

yes

Question 5

what are the 2 most common positons of the appendix

Answer 5

rectal and retocecal

Question 6

the worm like diverticulum on the appendix is callled

Answer 6

appendix

Question 7

the appendix arises from what wall

Answer 7

posteromedial wall

Question 8

what is the peritonial fold of the appendix

Answer 8

mesoappendix

Question 9

what is the blood supply to the appendix

Answer 9

apendicular arterty (branch of illieocolic–branch of superior mesentary (derived from midgut )

Question 10

where is mcburneys point

Answer 10

Right side, near ASIS

Question 11

What is the the significance of mcburneys point

Answer 11

max tenderness is at this point when the appendix is swollen

Question 12

a person has a + psoas test what does this mean

Answer 12

appendix is inflammed

Question 13

which nerve can be damaged in appendisectomy

Answer 13

illeohypogastric nerve

Question 14

whihc parts of the colon are retroperitonial

Answer 14

ascending and descending

Question 15

which parts of the colon are intraperitonial

Answer 15

transverse and sigmoid

Question 16

what is the name of the peritonium of the transverse colon

Answer 16

mesocolon

Question 17

***what are the 3 defining features of the large intestine as oppsed to small intestine

Answer 17

1. appendicies epiploicase- outpouching of fat
2. taenia coli- longitudinal muscle fiber
3. haustra

Question 18

what artery supplies the ascending and transverse colon

what nerve supplies the ascendnig and transverse colol

Answer 18

superior mesenteric artery

vegas nerve

Question 19

what artery supplies the descending and sigmoid

what nerve supplies the descending and sigmoid

Answer 19

inferioir mesentaric arterty

splanchnic nerve

Question 20

hirschprungs disease usually affects what part of the colon

Answer 20

descending colon and rectal junction

Question 21

what went wrong in Hirschsprung’s disease

Answer 21

postgangiolinic parasympthathetic neurons are lost

Question 22

the missing post ganglionic neurons are in hirschprungs disease are derivatives of what cells

Answer 22

neural crest cells

Question 23

what is a tell tale sign that a child has congenital mega colon aka hirshcprungs

Answer 23

no passage of meuconium

Question 24

if operating on the appendix what 2 arteries need to be blocked

Answer 24

marginal artery and ileocolic artery

Question 25

Where does the rectum begin

Answer 25

S3

Question 26

A MAN gets a rectal exam, what structures will be felt anterior

Answer 26

prostate and seminal vesicles

Question 27

a WOMAN gets a rectal exam, what structures willbe felt anterior

Answer 27

posterior vaginal wall and cervix

Question 28

what structure is found posterior in both sexes on a rectal exam

Answer 28

piriformis and sacral plexus

Question 29

which part of the rectum is covered with peritonium

Answer 29

upper 1/3

Question 30

is there periotoimun on the lower 1/3 of the rectum

Answer 30

no

Question 31

superior rectal artery is a branch of what artery

Answer 31

inferior mesentaric artery

Question 32

middle rectal artery is a branch of what artery

Answer 32

internal illiac artery

Question 33

inferior rectal artery is a branch of

Answer 33

internal pudundal

Question 34

the external anal spinctor is made of what kind of muscle

Answer 34

skeletal muscle

Question 35

what nerve inervates the external anal sphinctor

Answer 35

inferior anal/rectal nerve

Question 36

above the pectinate line what is the artery and the vein

Answer 36

above:
artery = inferior mesentaric artery 
vein= portal venous system
Nerves: autonomic 
pain= insenstive 
Lymph = internal illiac nodes (CANCER GO HERE)

Below:
Nerves: somatic
Pain = SENSITIVE
Lymph= Superficial inguinal nodes (CANCER GO HERE)