Exercise 7: The Muscular System (Pelvic Floor and Perineum I)

Question 1

Origin of pubococcygeneus

Answer 1

pubis

Question 2

Origin of iliococcygeus

Answer 2

iliac spine

Question 3

Origin of coccygeus

Answer 3

ischial spine

Question 4

Origin of superficial transverse perineus

Answer 4

ischial tuberosity

Question 5

Origin of bulbospongiosus

Answer 5

central tendon of perineum

Question 6

Origin of ischiocavernosus

Answer 6

ischial tuberosity

Question 7

Insertion of ischiocavernosus

Answer 7

penis/clitoris

Question 8

Insertion of bulbospongiosus (male)

Answer 8

corpus spongiosusm of penis

Question 9

Insertion of bulbospongiosus (female)

Answer 9

pubic arch,

clitoris

Question 10

Insertion of superficial transverse perineus

Answer 10

central tendon of perineum

Question 11

Insertion of coccygeus

Answer 11

lower sacrum and coccyx

Question 12

Insertion of iliococcygeus

Answer 12

coccyx

Question 13

Insertion of pubococcygeus

Answer 13

coccyx,
anal canal,
urethra,
central tendon of perineum

Question 14

Action of puboccocygeus

Answer 14

constricts anus, urethra and vagina,
resists increased intra-abdominal pressure,
supports fetal head during childbirth

Question 15

Action of coccygeus

Answer 15

supports pelvic viscera,
resists intra-abdominal pressure,
pulls coccyx anteriorly after defecation or child birth

Question 16

Action of superficial transverse perineus

Answer 16

stabilizes central tendon of perineum

Question 17

Action of bulbospongiosus (male)

Answer 17

aids in urine and semen expulsion and erection of penis

Question 18

Action of bulbospongiosus (female)

Answer 18

constricts vaginal orifice,

assists in erection of clitoris

Question 19

Action of ischiocavernosus

Answer 19

erection