Female Internal Genital Organs: Vagina

Question 1

What are the female internal genital organs?

Answer 1

Vagina
Uterus
Uterine tubes
Ovaries
Rectum

Question 2

What is the vagina?

Answer 2

7-9cm distensible tube extending from uterine cervix to vestibule of vagina

Question 3

What surrounds the vagina superiorly?

Answer 3

uterine cervix

Question 4

What does the vagina pass through?

Answer 4

medial parts of Levator Ani m. (Puborectalis)

Question 5

What is the vestibule of the vagina?

Answer 5

cleft between the Labia Minora

Question 6

Where is the vagina located?

Answer 6

posterior to urethra/urinary bladder and anterior to rectum

Question 7

The walls of the vagina are normally collapsed and open up where?

Answer 7

Superiorly where cervix holds walls apart

Question 8

What is the vaginal fornix?

Answer 8

Superior recess surrounding uterine cervix and is divided into anterior, lateral, and posterior regions.

Question 9

Which region of the vaginal fornix is the deepest part?

Answer 9

the posterior fornix and is associated with the rectouterine pouch

Question 10

What four muscles compress the vagina and act like a sphincter?

Answer 10

Pubovaginalis m.
External urethral sphincter
Urethrovaginal sphincter
Bulbospongiosus m.

Question 11

What is the function of the vagina?

Answer 11

• Excretory duct for menstrual fluid
• Receive penis and semen during sexual intercourse
• Inferior portion of birth canal

Question 12

What arteries supply the vagina? which portion?

Answer 12

uterine a. (superior vagina)
vaginal a. (middle vagina)
internal pudendal a. (inferior vagina)

Question 13

What is the venous drainage for the vagina and where does it go to?

Answer 13

Vaginal venous plexus drains to internal iliac v.

Question 14

What is the lymphatic drainage for the superior portion of the vagina?

Answer 14

Drains to internal /external iliac lymph nodes

Question 15

What is the lymphatic drainage for the middle portion of the vagina?

Answer 15

Drains to internal iliac lymph nodes

Question 16

What is the lymphatic drainage for the inferior portion of the vagina?

Answer 16

Drains to the sacral, common iliac and superficial inguinal lymph nodes

Question 17

What is the innervation of the superior 80% of the vagina and what is it an extension off?

Answer 17

Uterovaginal plexus (travels with the uterine a.) and is an extension of inferior hypogastric plexus

Question 18

Sympathetics to the vagina are supplied via

Answer 18

lumbar splanchnic n.

Question 19

Parasympathetics to the vagina via

Answer 19

pelvic splanchnic n.

Question 20

What doe the visceral afferents of the vaginal accompany and what is it responsible for?

Answer 20

accompany pelvic splanchnic n. back to S2-S4

- Responsive only to distension ini upper 80% of vagina

Question 21

What is the somatic innervation via?

Answer 21

Deep perineal n. (branch of pudendal n.)

Question 22

What portion of the vagina does the Deep perineal n. provide somatic innervation and what is it responsive to?

Answer 22

Only to lower 20% of vagina and responsive to touch and temperature