Pelvic Walls, Joints, Vessels and Nerves

Question 1

The pelvic walls consist of?

Answer 1

Sacrum
Coccyx
Pelvic bones
Two ligaments
Two muscles

Question 2

Two ligaments that define the apertures between pelvic cavity and adjacent regions are?

Answer 2

1. Sacrotuberous ligament

2. Sacrospinous ligaments

Question 3

What are the 4 walls of the pelvis?

Answer 3

Anterior.
Posterior.
Lateral.
Inferior or floor. 
- The walls are formed by bones and ligaments that are lined with muscles covered with fascia and parietal peritoneum

Question 4

Describe the anterior pelvic wall?

Answer 4

It is the shallowest wall and is formed by the posterior surfaces of the bodies of the pubic bones, the pubic rami, and the symphysis pubis.

Question 5

Describe the posterior pelvic wall?

Answer 5

It is large and formed by sacrum, coccyx , piriformis muscles and their covering of parietal pelvic fascia

Question 6

Describe the pririfromis?

Answer 6

Origin: Pelvic surface of the middle 3 sacral vertebrae.
- It leaves the pelvis through the greater sciatic foramen.
Insertion: Greater trochanter of the femur.
Action: Lateral rotator of the femur at the hip joint.
Nerve supply: Sacral plexus.

Question 7

Describe the lateral pelvic wall?

Answer 7

formed by:
1- Upper part of the hip bone below the pelvic inlet,
2- Obturator internus and its covering fascia & the obturator fascia.
3- Sacrotuberous ligament.
4- Sacrospinous ligament