Skeletal Adaptations for Bipedalism Flashcards
How is the human skeleton adapted for bipedalism?
Lower limbs prioritize stability and movement, while upper limbs are free for manipulation.
Why is the humerus shorter and lighter than the femur?
The humerus allows for greater movement, while the femur provides stability for weight-bearing.
How do the forearm bones (radius & ulna) allow mobility?
They enable pronation and supination of the wrist
Why is the human ankle more stable than the wrist?
It lacks pronation/supination and is designed for weight-bearing.
What is the radius and its function?
Lateral in anatomical position. Allows rotation for pronation and supination at the wrist.
What is the Ulna and its function?
The medial bone in the medial in anatomical position. Provides stability at the elbow joint
