Osteology Practicum Tasks

Male Sub-pubic Angle

V shape and <90 degrees

Female Sub-pubic Angle

U shaped and >90 degrees

Male Pubic Opening Shape

Triangular

Female Pubic Opening Shape

Squared

Female Greater Sciatic Notch

>68 degrees

Male Greater Sciatic Notch

<68 degrees

Female Sacrum and Coccyx

Straighter, More access to Pelvic Opening

Male Sacrum and Coccyx

More curved into pelvic opening

Male Ilium Blades

Smaller and more curved

Female Ilium Blades

Larger and Straighter

Quadruped innominate bone

Long and Narrow Ilium blade, weight is distributed across four limbs, less pronunced muscle attachments, shallow great sciatic notch.

Biped Innominate Blade

Broad and Wide Ilium blade, weight is distributed on two legs, lots of stress on hips, more pronounced muscle attachments, sharper and deeper greater sciatic notch

Male Mastoid Process

More pronounced

Female Mastoid Process

Less pronounced

Male Supraorbital Torus

More Pronounced

Female Supraorbital Torus

Less pronounced

Male Frontal Bone

Slanted

Female Frontal Bone

Globular

Male Supraorbital Ridge

Rounded Ridge, Thicker

Male Palate

Deep

Female Palate

Shallow

Male Occipital/Nuchal Ridge

Pronounced region with prominent nuchal ridge

Female Occipital/Nuchal Ridge

Less pronounced region with small or no nuchal ridge evident

Biped Foramen Magnum

Forward, more upright, indicates straighter spine

Quadruped Foramen Magnum

In the back of the skull, indicates a curved spine in quadrupeds.

Female Supraorbital Ridge

Sharp ridge, thinner