Anatomy of the human male and female pelvic bones with differences listed.

1. Anatomy of Pelvis
Female vs Male Pelvis
Mojee Tuapati

2. Pelvis Structure:
• Basin-shaped bones that consists of the paired hip bones (left & right hip bones) connected in
front at the pubic symphysis & behind by the sacrum.
• Each hip-bone in made up of 3 bones, namely;
• The Ilium
• The Ischium
• The Pubis
• All 3 unite in early adulthood at a triangular suture in the Acetabulum.

3. • The pelvis is divided into two parts: The true(lesser) and false(greater) pelvis.
• The false pelvis is situated above the pelvic brim.
• Is formed by the flared-out portions of the iliac bones & protects the abdominal organs.
• Is of no obstetrical significance.
• The true pelvis is the bony canal through which the fetus must pass during birth.
• Bounded at the back by the Sacrum, at the sides by the Ischium and in front by the Pubis,
forming a solid ring of bone.
• Has a brim, a cavity and an outlet.

4. • There are four articulations within the pelvis:
• Sacroiliac joints (x2)- between the Ilium of the hip bones, and the Sacrum.
• Sacrococcygeal Symphysis- between Sacrum and the Coccyx.
• Pubic Symphysis- between pubis bodies of the two hip bones
• Ligaments attach the lateral border of the Sacrum to the various bony landmarks on the bony
pelvis to aid stability.
• The pelvic cavity includes these structures:
• Loops of small intestine
• Sigmoid colon, Rectum, & Anal canal.
• Urinary bladder, lower part of ureters, & urethra.
• Reproductive organs:
• Prostate gland, Seminal vesicles, Vas deferens, & Ejaculatory ducts in males.
• Uterus, Uterine tubes, Ovaries, and Vagina in female.

5. Types of Pelvis:
• The 4 types of pelvis are:
• Gynecoid pelvis
• Platypoid pelvis
• Anthropoid pelvis
• Android pelvis
• The majority of women have a Gynecoid pelvis, as opposed to the male Android pelvis.
• The slight differences in their structures creates a greater pelvic outlet, adapted to aid the
process of childbirth.

6. Functions of the Pelvis:
• Primary role is to support the weight of the upper body when sitting.
• Attaches the lower limbs to the axial skeleton.
• Serves as an attachment point for trunk & lower limb muscles.
• Protects the internal pelvic organs.
• Aids in movement. (muscles of hips, trunks, and legs)
• Contains the abdominopelvic and pelvic viscera.

7. Male vs Female Pelvis:
Female Pelvis Male Pelvis
Pelvic Weight Lighter & Thinner Thicker & Heavier
Pelvic Inlet Shape Round or Oval shape Heart-shaped
Subpubic angle Greater than 80 degrees Less than 70 degrees (v-shaped)
Pelvic Outlet Shape Rounded & Larger Smaller
Sacrum Short & Broad/wide Tall & Narrow
Coccyx Is flexible & Straighter Projected Inwards & Immovable
Acetabulum Smaller one Is larger

8. Parts of the Pelvis:

9. THE END!!
• Marau Jiko Taci!!