Perineum

Question 1

Root of penis components

Answer 1

Bulb and crura of the penis (covered by muscles)

Question 2

Answer 2

Question 3

Answer 3

Question 4

Answer 4

Question 5

Scrotum supply and innervation, lymphatics

Answer 5

Question 6

Tunica albugenia surrounds what in scrotum

Answer 6

Seminiferous tubules in testes

Question 7

Answer 7

Question 8

Contents of spermatic cord

Answer 8

Question 9

Answer 9

Question 10

Answer 10

Question 11

Veins of external genital (penis/clit)

Answer 11

One superficial dorsal vein (drains to external pudendal vein), one deep dorsal vein (drains to prostatic venous plexus (males)/vesical venous plexus (females))

Question 12

Arteries of external genitalia

Answer 12

Dorsal artery of the penis/clitoris (arises within deep perineal pouch from internal pudendal artery either side of deep dorsal vein)

Question 13

Nerves of external genitalia

Answer 13

Question 14

Answer 14

Question 15

Layers of UG triangle

Answer 15

Question 16

Pink

Answer 16

Question 17

Superficial perineal pouch male contents

Answer 17

Root of penis

Crura of penis (erectile tissue)

Ischiocavernous muscle (covers curura)

Bulb of penis

Bulbospongiosus muscle

Question 18

Superficial perineal pouch female contents

Answer 18

Vestiobular bulbs

Crura of clitoris

Greater vestibular glands

Lesser vestibular glands

(Also have ischiocavernous m and bulbospongiosus m)

Question 19

Contents of both m and f superificial pouch

Answer 19

Question 20

• Superior boundary of superficial perineal pouch
• Inferior boundary of deep perineal pouch

Answer 20

Perineal membrane

Question 21

Answer 21

Question 22

Muscles that converge on perineal body

Answer 22

• Bulbospongiosus, superficial transverse perineal
• Deep transverse perineal, external urethral sphincter
• Levator ani, external anal sphincter
• Muscular portion of rectum

Question 23

Deep perineal pouch contents and boundaries

Answer 23

Question 24

Answer 24

Question 25

Answer 25

Question 26

Male only

Answer 26

Question 27

UG Diaphragm components

Answer 27

Question 28

Parts of male urethra

Answer 28

• Intramural (preprostatic)
• Prostatic
• Intermediate (membranous)
• Spongy

Question 29

Arteries of perineum

Answer 29

Question 30

Answer 30

Question 31

Lymphatics of perineum

Answer 31

Question 32

Nerves of perineum

Answer 32

Question 33

Perineal nerve branches and supply

Answer 33

Superficial perineal n - Supplies skin & subcutaneous tissue, Posterior scrotal/labial nn

Deep - Supplies structures of superficial & deep perineal pouches

Question 34

Para and sympathetic source for perineum

Answer 34

• Parasympathetics = “Point” – Cavernous nerves
• Sympathetics = “Shoot” – Hypogastric plexuses