Male Pelvic Anatomy & Organs

Question 1

What seven things are present in a ventral (lateral) shot of the male pelvis, starting from the superior position?

Answer 1

1. Alae of iliac bones (either side)
2. False pelvis
3. Pelvic brim
4. True pelvis
5. Levator ani muscle
6. Perineal membrane
7. Obturator membrane

Question 2

What is the abdominipelvic cavity bound to superiorly and inferiorly, respectively?

Answer 2

1. Thoracic diaphragm

2. Pelvic diaphragm

Question 3

In a proximal shot of the male pelvis, what are six important bony components and three other areas of interest to note (starting from the superior anterior position)?

Answer 3

1. Right os coxa
2. Ilium
3. Sacrum
4. Acetabulum
5. Ischium
6. Pubis
7. ASIS
8. Plane of inguinal ligament
9. Pubic tubercle

Question 4

What five things are important to know about the bony pelvic inlet (brim)?

Answer 4

1. False pelvis
2. Sacral ala
3. Arcuate line of ilium
4. Iliopectineal line
5. True pelvis

Question 5

What are the two foramen in the pelvic region?

Answer 5

Greater & lesser sciatic foramen.

Question 6

What separates the two foramen in the pelvis?

Answer 6

Sacrospinous ligament

Question 7

What two ligaments define the lesser sciatic foramen?

Answer 7

Sacrospinous ligament (superior) and sacrotuberous ligament (inferior)

Question 8

Where is the sacroiliac joint found?

Answer 8

Visible from the anterior and posterior view; parallel and proximal to the sacrum; with the iliolumbar apparent superiorly.

Question 9

Name the two main muscles in the pelvic wall.

Answer 9

1. Piriformis (superior)

2. Obturator internus (inferior)