Rectum

Question 0

Descends along the sacrococcygeal concavity

Answer 0

Rectum

Question 1

Fixed terminal part of the large intestine

Answer 1

Rectum

Question 2

Part of the colon that has

• no sacculation
• no appendices epiplocae
• no mesentery
• no taenia coli

Answer 2

Rectum

Question 3

In males, it is the part of the rectum that is related anteriorly to the urinary bladder

Answer 3

Upper third

Question 4

In females, the upper third of the rectum is related anteriorly to

Answer 4

Cervix and body of the uterus

Question 5

Part of the rectum covered by peritoneum in its anterior aspect

Answer 5

Middle third

Question 6

In males, the peritoneum covering the rectum is folded onto the urinary bladder to form

Answer 6

Recto vesical pouch

Question 7

On the posterior vaginal wall in females, the peritoneum of the rectum folds to form

Answer 7

Recto uterine pouch

Question 8

Semilunar transverse or horizontal folds in the rectum is called

Answer 8

Valves of houston

• 2 on L: superior, inferior
• 1 on R: middle

Question 9

Valve of houston that occasionally encircles the rectal lumen

Answer 9

Superior fold

Question 10

Largest and most constant valve of houston that is found immediately above the rectal ampulla

Answer 10

Middle fold

Question 11

From the embryological hindgut that is enclosed by the mesorectal fascia

Answer 11

Mesorectum

Question 12

Mesorectal fascia continues with a denser condensation of fascia anteriorly called

Answer 12

Males: rectovesical fascia of Denonvillier
Females: fascia of rectovaginal septum

Question 13

Mesorectum contains what structures?

Answer 13

Superior rectal a & branches
Superior rectal v & tributaries
Lymph vessels and nodes along SRA
Branches from IMPlexus

Question 14

Arterial supply to the upper 2/3 of the rectum

Answer 14

Superior Rectal Artery

Question 15

Superior rectal artery is a continuation of

Answer 15

IMA

Question 16

Superior rectal a divides into 2 branches at what level of the spinal cord

Answer 16

S3

Question 17

Provides arterial supply to the muscle of the mid and lower rectum

Answer 17

Middle rectal arteries

Question 18

Middle rectal a arise from

Answer 18

Ante division of internal iliac a

Question 19

Terminal branches of the internal pudendal a

Answer 19

Inferior rectal a

Question 20

Supplies the internal and external anal sphincters, anal canal below its valves, and perianal skin

Answer 20

Inferior rectal a

Question 21

Inferior rectal a is a branch of

Answer 21

Internal pudendal a

Question 22

Anastomose with the terminal branch of the superior rectal a

Answer 22

Ascending branches of inferior rectal a

Question 23

Venous drainage of the rectum

Answer 23

Rectal venous plexus

Question 24

Rectal venous plexus connects anteriorly with what plexuses?

Answer 24

Male: vesical plexus
Female: utero-vaginal plexus

Question 25

Rectal venous plexus drains to

Answer 25

Superior rectal v

Question 26

External part of the rectum: inferior portion is drained by

Answer 26

Inferior rectal vein

Question 27

External part of the rectum: middle portion is drained by

Answer 27

Middle rectal v

Question 28

External part of the rectum: superior part is drained by

Answer 28

Superior rectal v

Question 29

Inferior rectal v drains to

Answer 29

Internal pudendal v

Question 30

Middle rectal v is a drains to

Answer 30

Internal iliac v - anterior division

Question 31

Superior rectal v drains to

Answer 31

IMV

Question 32

T or F: There is a communication between portal and systemic venous systems

Answer 32

True

Question 33

Superior rectal veins are formed from the

Answer 33

Internal rectal plexus

Question 34

Lymph drainage of the rectum and upper anal canal above dentate line drains into

Answer 34

Epirectal nodes in mesorectum