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Forensic Science Determining Sex from Bones, Slides of Forensics

Determine if the following pelvis belongs to a male or female. Click on the link for the image. Pelvis. 2. Determine if the following pelvis.

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High School Science Virtual Learning
Forensic Science
Determining Sex from Bones
April 14, 2020
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High School Science Virtual Learning

Forensic Science

Determining Sex from Bones

April 14, 2020

High School Forensic Science

Lesson: Tuesday, April 14, 2020

Objective/Learning Target:

The student will be able to determine the sex of an

individual from skeletal remains.

Let’s Get Started:

1. Male

2. Female

Lesson Activity:

Directions: Watch the following video about how to

determine the sex of an individual from their bones.

Link(s): Sex and Bones

How To Distinguish Males From Females

● A male’s skull is usually bigger and bumpier than a female’s. ● Also anatomical differences in: ○ Frontal brow ○ Eye orbits ○ Lower jaw ○ Shape of chin

How To Distinguish Males From Females

How To Distinguish Males From Females

● Examination of the pelvis is the easiest method to determine the sex of a skeleton. ● Differences in: ○ Subpubic angle ○ Length, width, shape and angle of the sacrum ○ Width of the ileum ○ Angle of the sciatic notch ● Women who have borne children have scars on the surface of their pelvis.

How To Distinguish Males From Females

How To Distinguish Males From Females

● The femur (thigh bone) of a male is thicker than a females. ● The angle of the femur in relation to the pelvis is greater in females than males.

Lesson Activity:

Directions: Read the information provided in the

following link to help you distinguish between male and

female skeletons.

Link(s): Human Remains (only read pages 417-422)

Practice Questions

  1. Does the following skull on the right belong to a female or male?
  2. What are the main differences between a male pelvis and a female pelvis?
  3. Why is the pelvis the best bone for determining sex?

Answer Key Once you have completed the practice questions check with the work.

  1. Male
  2. Female
  3. Female pelves are larger and wider than male pelves and have a rounder pelvic inlet.
  4. The human pelvis provides the most reliable means for determining the sex of skeletal remains. The female pelvis is designed to offer optimal space for the birth canal, which is reflected in its morphology and the relationship of its parts to each other