Pelvis

Question 1

What’s the rule of 3’s for the innominate anatomy?

Answer 1

Innominate develops in 3 parts: ischium, Illum, and pubis
Innominate has 3 articulations: 2 SI joints and pubic symphysis
45 muscles attach to the pelvis roughly 1/3 for each bone.

Question 2

How is dermatomal pain in the pelvis usually described? compare this to sclerotomal pain

Answer 2

sharp and delineated in a specific nerve root distribution

sclerotomal pain is dull and achy without defined borders

Question 3

Identify the organ or region associated with the vertebral segments that give rise to a viserosomatic reflex.

T10-L1
T10-L2
T12-L2

Answer 3

T10-L1 kidneys
T10-L2 Ureter, pelvic organs, lower extremity
T12-L2 Lower GI distal 1/3 transverse colon, sigmoid colon, and rectum.

Question 4

What is the origin insertion and action of gluteus minimus?

Answer 4

• action: abducts the hips, also rotation at the hips, stabilizes pelvis

Question 5

What is the origin insertion and action of piriformis?

Answer 5

• action: external rotation, abduction, and extension of the hip join; stabilizes the hip joint

Question 6

What is the origin insertion and action of adductor brevis?

Answer 6

• action: hip adduction and flexion; extension; stabilizes pelvis in the coronal and sagittal planes

Question 7

What is the origin insertion and action of Pectineus?

Answer 7

• action: hip joint adduction, external rotation, slight flexion; stabilizes the pelvis in the coronal and sagittal planes

Question 8

What is the origin insertion and action of Sartorius?

Answer 8

• Action: hip joint flexion, abduction, and external rotation; knee joint – flexion, and internal rotation.

Question 9

Describe the 3 anterior and 4 posterior chapmans points on the pelvis and which areas they refer pain from

Answer 9

Anterior:
inferior to ASIS (intestinal peristalsis)
Just lateral to pubic symphasis (ovaries, urethra)- same area as SCS tenderpoint for pectineus.
Inferiolateral to pubic symphasis (uterus)

Posterior:
PSIS-sciatic nerve, fallopian tubes, seminal vesicles
PIIS- Sciatic, Hemorrhoidal
Acetabular area- Fallopian tubes, and seminal vesicles
Superior to ischial tuberosity-Hemorrhoidal plexus