Ch.62 Vulva, Vestibule, Vagina and Cervix

Question 1

Where should the ventral commisure of the labia be positioned

Answer 1

Caudal and ventral to the ischial arch

Question 2

How much of the vulval cleft should be ventral to the ischial arch

Answer 2

2/3

Question 3

The vulva should be no more than how many degrees of deviation from the horizontal plane

Answer 3

10*

Question 4

Where is the constrictor vulae muscle

Answer 4

deep to the skin of the labia

Question 5

Blood supply to vulva, labia and clitoris

Answer 5

Internal pudendal vessels

Question 6

Innervation to the muscles of the vestibule and vulva

Answer 6

Pudendal n.
Caudal rectal n.

Question 7

What is the perineum formed by

Answer 7

1. Fibres of the external anal sphincter
2. Constrictor vulvae mm

Question 8

Dimensions of clitoris

Answer 8

2.5 cm wide
5 cm long

Question 9

What is the terminal part of the genital tract, what are its extremities and how long is it

Answer 9

Vestibule

cranial - transverse fold
Lateral and ventral - constrictor vestibuli (incomplete dorsally)

12 - 15cm

Question 10

What forms the vestibular sphincter?

Answer 10

1. Pillars of the hymen
2. Constrictor vestibuli mm
3. Floor of the pelvis

Question 11

Where does the vagina extend to and from

Answer 11

From transverse fold
To vaginal fornix around the cervix

Question 12

Vascular supply of the vagina

Answer 12

Internal pudendal vessels

Question 13

Three protective barriers in the caudal reproductive tract

Answer 13

1. Constrictor vulvae mm of labia
2. Vestibular sphincter
3. Cervix