Perineum

Question 1

bulbospongiosus
(female) origin

Answer 1

perineal body and fascia of the bulb of
the vestibule

Question 2

bulbospongiosus
(female) insertion

Answer 2

perineal membrane and corpus cavernosum of the clitoris

Question 3

bulbospongiosus
(female) innervation

Answer 3

deep branch of the perineal
nerve (from pudendal nerve)

Question 4

bulbospongiosus
(female) blood supply

Answer 4

perineal artery

Question 5

bulbospongiosus
(female) function

Answer 5

compresses the vestibular bulb
and constricts the vaginal
orifice

Question 6

bulbospongiosus
(male) origin

Answer 6

central tendinous point and the midline
raphe on the bulb of the penis

Question 7

bulbospongiosus
(male) insertion

Answer 7

perineal membrane, dorsal surface of the corpus spongiosum,
deep penile fascia

Question 8

bulbospongiosus
(male) innervation

Answer 8

deep branch of the perineal
nerve (from pudendal nerve)

Question 9

bulbospongiosus
(male) blood supply

Answer 9

perineal artery

Question 10

bulbospongiosus
(male) function

Answer 10

compresses the bulb of the
penis, compresses the spongy
urethra

Question 11

ischiocavernosus origin

Answer 11

medial surface of the ischial tuberosity
and the ischiopubic ramus

Question 12

ischiocavernosus insertion

Answer 12

corpus cavernosum and crus of the penis/clitoris

Question 13

ischiocavernosus innervation

Answer 13

deep branch of the perineal
nerve (from pudendal nerve)

Question 14

ischiocavernosus blood supply

Answer 14

perineal artery

Question 15

ischiocavernosus function

Answer 15

compresses the corpus
cavernosum

Question 16

deep transverse
perineus origin

Answer 16

medial surface of the ischial ramus

Question 17

deep transverse
perineus insertion

Answer 17

contralateral muscle and perineal body/central tendinous point

Question 18

deep transverse
perineus innervation

Answer 18

deep branch of perineal nerve
from pudendal nerve

Question 19

deep transverse
perineus blood supply

Answer 19

internal pudendal artery

Question 20

deep transverse
perineus function

Answer 20

fixes and stabilizes the perineal
body/central tendinous point

Question 21

external anal
sphincter origin

Answer 21

perineal body or central tendinous point
of the perineum

Question 22

external anal
sphincter insertion

Answer 22

encircles the anal canal; superficial fibers attach to the coccyx

Question 23

external anal
sphincter innervation

Answer 23

inferior rectal nerves (from the
pudendal nerve)

Question 24

external anal
sphincter blood supply

Answer 24

inferior rectal artery

Question 25

external anal sphincter function

Answer 25

constricts the anal canal

Question 26

sphincter urethrae (female) origin

Answer 26

encircles the urethra

Question 27

sphincter urethrae (female) insertion

Answer 27

encircles urethra and vagina; extends superiorly along the urethra as far as the inferior surface of the bladder

Question 28

sphincter urethrae (female) innervation

Answer 28

deep branch of perineal nerve from pudendal nerve

Question 29

sphincter urethrae (female) blood supply

Answer 29

internal pudendal artery

Question 30

sphincter urethrae (female) function

Answer 30

compresses urethra and vagina

Question 31

sphincter urethrae (male) origin

Answer 31

encircles the urethra

Question 32

sphincter urethrae (male) insertion

Answer 32

encircles urethra, reaches lateral surface of prostate and inferior bladder

Question 33

sphincter urethrae (male) innervation

Answer 33

deep branch of perineal nerve from pudendal nerve

Question 34

sphincter urethrae (male) blood supply

Answer 34

internal pudendal artery

Question 35

sphincter urethrae (male) function

Answer 35

compresses urethra

Question 36

superficial transverse perineus origin

Answer 36

medial surface of the ischial ramus

Question 37

superficial transverse perineus insertion

Answer 37

contralateral muscle and the perineal body/central tendinous point

Question 38

superficial transverse perineus innervation

Answer 38

deep branch of perineal nerve from pudendal nerve

Question 39

superficial transverse perineus blood supply

Answer 39

perineal artery

Question 40

superficial transverse perineus function

Answer 40

fixes and stabilizes perineal body/central tendinous point