Lesson 6B (Part 2)

Question 1

What makes up the urogenital triangle? (3)

Answer 1

1. Bulbospongiosus
2. Ischiocavernosus
3. Transversus perineal
   - transverse perinei

Question 2

What makes up the anal triangle?

Answer 2

Sphincter ani muscle

Question 3

What does the pelvic diaphragm muscles line?

Answer 3

The pelvic floor

Question 4

What does the pelvic diaphragm do?

Answer 4

Provides support for the pelvic organs

• holds the uterus
• rotates the bladder up

Question 5

Where does the levator ani muscle lie?

Answer 5

Its a hammock like portion of the pelvic floor

Question 6

What does the levator ani muscles help with?

Answer 6

In contraction of the vagina and the rectum

Question 7

What are the true pelvis muscles?

Answer 7

The pelvic floor muscles

• pelvic diaphragm muscles
• levator ani muscles

Question 8

What are the deepest muscles considered as in the pelvis?

Answer 8

The most superficial

Question 9

What are the paired pelvic diaphragm muscles? (3)

Answer 9

1. Pubococcygeus muscles
2. Iliococcygeus muscles
3. Coccygeus muscles

Question 10

Where is the pubococcygeus muscles located?

Answer 10

Most medial and anterior muscles of the pelvic diaphragm

Question 11

Where does the pubococcygeus muscles extend?

Answer 11

From the pubic bone to the coccyx

Question 12

Where does the iliococcygeus muscles lie?

Answer 12

Posterolateral to the pubococcygeus

Question 13

Where does the iliococcygeus muscles extend?

Answer 13

From the lateral pubic bone and the ischial spine to coccyx

Question 14

Where are the coccygeus muscles located?

Answer 14

Most posterior muscle pair of the pelvic diaphragm

Question 15

Where does the diaphragm extend?

Answer 15

From the ischial spine to the coccyx

Question 16

What is another term for deep transverse perineal?

Answer 16

Transverse perinei

Question 17

Where is deep transverse perineal located?

Answer 17

Originates on the ischial tuberosities and passes medially to insert on the central perineal tendon

Question 18

Which way does the transverse perinei muscle run?

Answer 18

Horizontally

Question 19

What kind of movement does the external urethral sphincter do?

Answer 19

Voluntary

Question 20

What kind of movement does the internal urethral sphincter do?

Answer 20

Involuntary

Question 21

What does the external urethral sphincter do?

Answer 21

It stops urine from exiting the bladder

Question 22

What portion does the urogenital diaphragm lay?

Answer 22

Anteriorly

Question 23

What shape is the perineal muscles?

Answer 23

Diamond

- between the pubic arch (anteriorly), the coccyx (posteriorly) and the ischia tuberosities laterally

Question 24

How is the diamond divided into the perineal muscles? (2)

Answer 24

1. Anterior urogenital region

2. Posterior anal region

Question 25

Where is the superficial transverse perineal muscles located?

Answer 25

They arise on the ischial tuberosities and they pass medially to insert on the central perineal tendons

Question 26

What does the superficial transverse perineal muscles do?

Answer 26

It divides the perineum into urogenital and the anal regions

Question 27

Where is the ischiocavernosus muscles located?

Answer 27

They arise on the ischial tuberosities that pass forward to inset on the pubic arch and crus of of the penis (males) or clitoris (females)

Question 28

Where does the ischiocavernosus insert on in males?

Answer 28

The crus of the penis

Question 29

Where does the ischiocavernosus insert on in females?

Answer 29

The clitoris

Question 30

Where is the bulbospongiosus muscle?

Answer 30

It is the medial line of the urogenital region

Question 31

What is the bulbospongiosus muscle separated by in females?

Answer 31

Urethra/vagina

Question 32

What does the bulbospongiosus muscle do in males?

Answer 32

It unites midline and encircles the corpus spongiosum of the penis