The female pelvis aids in childbirth and is formed by the two innominate bones, the sacrum, and coccyx. There are four shapes of the female pelvis: gynecoid, android, anthropoid, and platypelloid. The pelvis contains four bones and several joints including the sacrococcygeal, sacroiliac, and symphysis pubis joints. The true pelvis has a brim, cavity, and outlet with specific diameters that allow for childbirth.

1. FEMALE PELVIS
ROMENA BEGUM
FINAL YEAR MSC
NURSING

2. The female pelvis because of its
characteristics ,aids in childbirth. It
is a skeletal ring formed by two
innominate or hip bone,the sacrum
and the coccyx.
INTRODUCTION

4. 1.Gynecoid pelvis : Roud shape.
2.Android pelvis: Heart shape.
3.Anthropoid pelvis: Oval shape.
4.Platypelloid pelvis: Kidney
shape

5. There are four bones in the pelvis.
Two Innominate bones(hip bone)
One sacrum
One coccyx
 Each hip bone consists of 3 sections,
ilium, ischium, and pubis.
Bones

6. Joints
There are four joints in the pelvis
1 Sacrococcygeal joint
2 Sacro-iliac joints
 1 Symphysis Pubis
The weight of the body is transmitted
through the ischial tuberosities in
sitting.

7. Pelvic Ligaments :
1.Sacroiliac ligament
2.Pubic ligament
3.Sacrotuberous ligament
4.Sacrospinous ligament
5.Sacrococcygeal ligament

8. Parts of pelvis
•The ilium, the ischium pubis
• Iliac fossa.
• Iliac crest
• Anterior superior iliac spine
• Anterior inferior iliac spine.
• Posterior superior iliac spine
• Posterior inferior iliac spines.
•Acetabulum
• Ischial tuberosity.
• Ischial spine.
• Superior ramus
• Inferior ramus
• Obturator foramen

9. True pelvis
The true pelvis has a brim,cavity and
outlet.
Brim
The brim is also termed as the inlet.its
boundaries are the sacral promontary and
wings of the sacrum behind the iliac bones
on the sides and pubic bone infront.

10. Landmarks of the brim :
1. Sacral promontory
2. Sacral ala or sacral wing
3. Sacroiliac joint
4. Iliopectineal line
5. Iliopectineal eminence
6. Superior ramus of the pubic bone
7. Upper inner border of the pubic bone
8. Upper inner border of the symphysis
pubis

11. Diameters of the brim :
Anteroposterior diameter : It is a line from the sacral
promontory to the upper broder of the symphysis
pubis.Its 11 cm.
Oblique diameter : It is a line from one sacroiliac joint
to the iliopectineal eminence.Its 12 cm.
Transverse diameter:
It is line between ilio-pectineal lines .Its 13 cm.

12. 11 12 1 3
12 12 12
13 12 11
Anteroposterior Oblique Transverse
Brim
Cavity
Outlet

13. Cavity
• The cavity extends from the brim
above to the outlet below.
•The brim is round shape ,so all
the diameter is 12 cm.

14. Outlet
Anteroposterior diameter : It is line from the
lower border of the symphysis pubis to the
sacrococcygeal joint. Its measures 13 cm.
Oblique diameter :Its between the obturator
foramen and the sacrospinous ligament.Its 12
cm.
Transverse diameter : Its line between the two
ischial spines and its 11 cm.

15. Bibliography
1.Annamma jacob.midwifery and gynecological nursing.3rd
edition.jaypee brothers medical publishers (p)LTD.Pp-37 to43.
2.Duttas D.C .Textbook of obstetrics.7th edition.published by
new central book agency (p) LTD,Pp87 to93.
3. https://www.healthline.com/human-body-maps/female-pelvis
4.https://www.stanfordchildrens.org/en/topic/default?id
anatomy-of-female-pelvic