Flashcards in Perineum and External Genitalia Deck (21)
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1
covered with very thin skin that contains numerous nerve-endings and is therefore very sensitive to touch
glans or head of penis
2
anterior boundary of perineum
-inferior border of the symphysis pubis
3
posterior boundary of perineum
coccyx
4
lateral boundary of perineum
pubic arch, ischial tuberosities, sacrotuberous ligaments
5
external boundary of perineum
skin
6
internal boundary of perineum
separated from the pelvic cavity by the pelvic diaphragm
7
perineum divided into 2 triangles:
Urogenital
Anal
8
SURROUNDED BY AREOLAR ADIPOSE TISSUE WHICH OCCUPIES THE ISCHIORECTAL FOSSA
POSTERIOR OR ANAL TRIANGLE
9
Fibromuscular tissue at median plane between lower end of vagina and anal canal
Attachment for the external anal sphincter, pulbospiongosus, and superficial and deep transverse perineal muscles
PERINEAL BODY
10
SUPERFICIAL PERINEAL POUCH
Lined by Colles’ fascia inferiorly [superficially] and the perineal membrane superiorly [internally].
In the female, it lines the labia major, pudendal cleft, vestibule and labia minora; interrupted only by the urethral and vaginal openings.
11
Muscles of female superficial pouch
Ischiocavernosus
Bulbocavernosus (Bulbospiongosus)
Superficial Transverse Perineal
12
pair of small masses of erectile tissue [venous plexuses - Gray] on each side of the vaginal orifice, covered by the bulbo-spongiosus [bulbo-cavernosus] muscles of the perineum. They are the small homologues of the male’s bulb of the penis.
Bulbs of the Vestibule
13
are small [pea-sized] glands covered by the bulbs of the vestibule. Their slender ducts open externally at the sides of the vaginal orifice at about 4 and 8 o’clock.
Greater Vestibular Glands [of Bartholin] -
14
Inferior Boundary of Deep Perineal Pouch
perineal membrane
15
Superior Boundary of Deep Perineal Pouch
blending of the superior fascia of the urogenital diaphragm and the inferior fascia of the pelvic diaphragm
16
Contents of deep perineal pouch
1. sphincter urethra muscle
2. deep transverse perineal
muscle
17
Muscles of FEMALE DEEP PERINEAL POUCH
Muscles
1. External Sphincter urethra
2. Deep Transverse perineal
18
MALE SUPERFICIAL POUCH
Muscles
1. Ischiocavernosus
2. Bulbospiongiosus (bulbocavernosus)
3.Superficial transverse perineal
19
BRANCHES OF THE INTERNAL PUDENDAL ARTERY:
1.Transverse perineal
2.Posterior labial
3.Deep artery of the clitoris
4.Dorsal artery of the clitoris
5.Inferior rectal
20
MALE DEEP PERINEAL POUCH
Muscles
1. External sphincter Urethra m
2. Deep transverse
perineal m.
21
