Pelvis

Question 1

What is the os coxae?

Answer 1

The adult pelvis.

Question 2

The os coxae is formed by what 3 bones?

Answer 2

Ilium, Ischium, and Pubis

Question 3

Where does the union ilium, ischium and pubis take place?

Answer 3

The acetabulum.

Question 4

A cup-shaped socket into which the ball-shaped head of the femur articulates.

Answer 4

Acetabulum.

Question 5

A hole in the os coxae between the ischium and the pubis.

Answer 5

Obturator foramen.

Question 6

A flat sheet of connective tissue that partially covers the obturator foramen.

Answer 6

Obturator membrane.

Question 7

What bundle course through the obturator foramen?

Answer 7

The obturator nerve, artery, and nerve.

Question 8

Located between the ischial spine and the iliac spine.

Answer 8

Greater sciatic notch.

Question 9

What ligament converts the greater sciatic notch into the greater sciatic foramen?

Answer 9

Sacrospinous ligament.

Question 10

What nerve courses through the greater sciatic foramen?

Answer 10

Sciatic nerve.

Question 11

What muscle course through the greater sciatic foramen?

Answer 11

Piriformis muscle.

Question 12

Located between the ischial spine and the ischial tuberosity.

Answer 12

Lesser sciatic notch.

Question 13

What ligament converts the lesser sciatic notch into the lesser sciatic foramen?

Answer 13

Sacrotuberous ligament.

Question 14

Fibrocartilage connecting the two pubic bones in the anterior midline of the os coxae.

Answer 14

Pubic symphysis.

Question 15

The superior aperture of the os coxae. (Oval-shaped)

Answer 15

Pelvic inlet.

Question 16

What are the boundaries of the pelvic inlet?

Answer 16

Ala of the anterior sacrum, arcuate line, pubis bone, and the posterior pubis symphysis.

Question 17

The inferior aperture of the os coxae. (Diamond-shaped)

Answer 17

Pelvic outlet.

Question 18

What are the boundaries of the pelvic outlet?

Answer 18

Pubis symphysis, sacrotuberous ligament, and coccyx.

Question 19

What are the 6 bony landmarks of the ilium?

Answer 19

Iliac crest, Iliac fossa, Anterior Superior iliac spine (ASIS), Anterior Inferior iliac spine (AIIS), Posterior Superior iliac spine (PSIS), and the Posterior Inferior iliac spine (PIIS).

Question 20

Thickened rim of the ilium.

Answer 20

Iliac crest.

Question 21

Concave surface on the anteromedial surface of the ilium.

Answer 21

Iliac fossa.

Question 22

Anterior prominence of the iliac crest. Serves as an attachment site for the sartorius and tensor fascia lata muscles.

Answer 22

Anterior superior iliac spine (ASIS).

Question 23

Anterior prominence of the iliac crest. Serves as an attachment for the rectus femoris muscle.

Answer 23

Anterior inferior iliac spine (AIIS).

Question 24

Posterior prominence of the iliac crest.

Answer 24

Posterior superior iliac spine (PSIS).

Question 25

Forms the posterior border of the ala of the sacrum.

Answer 25

Posterior inferior iliac spine (PIIS).

Question 26

What are the 3 bony landmarks of the ischium?

Answer 26

Ischial tuberosity, Ischial spine, and the Ischial ramus.

Question 27

A large protuberance on the inferior aspect of the ischium for the attachment of the hamstring muscles and for supporting the body when sitting.

Answer 27

Ischial tuberosity.

Question 28

A pointed projection that separates the greater and lesser sciatic notches.

Answer 28

Ischial spine.

Question 29

A bony projection that joins with the inferior pubic ramus to form the ichiopubic ramus(conjoint ramus).

Answer 29

Ischial ramus.

Question 30

What are the 3 bony landmarks of the pubis?

Answer 30

Pubic tubercle, Superior pubic ramus, and the inferior pubic ramus.

Question 31

A rounded projection on the superior ramus of the pubis.

Answer 31

Pubic tubercle.

Question 32

A bony projection of the pubis that forms a bridge with the acetabulum.

Answer 32

Superior pubic ramus.

Question 33

The crest on the superior aspect of the superior pubic ramus is the _____ ___, which serves as part of the border for the pelvic inlet and as an attachment site for muscles.

Answer 33

Pectineal line.

Question 34

A bony projection of the pubis that forms a bridge with the ischium; serves as an attachment site for lower limb muscles.

Answer 34

Inferior pubic ramus.

Question 35

True or false? The pelvic arch of females is larger than the pelvic arch of males?

Answer 35

True.

Question 36

Is a female pelvic inlet more circular-shaped or heart-shaped?

Answer 36

Circular-shaped.

Question 37

True or false? The male pelvic outlet is wider than the female pelvic outlet?

Answer 37

False.