Bones | Musculoskeletal System - Biology IB23

Bone Functions

Bone Functions

Acting as levers for movement as they can change size and direction of the force exerted by muscles. They’re also needed for:
- Base Shape and Support for the Body
- Blood Production from Bone Marrow
- Protection for Vital Organs (heart, brain..)
- Hearing (bones in ear)

Anchorages

Firm attachment to one end of a muscle which doesn’t move when it contracts.

EX: Humerus Bone

Insertions

Attachment to one end of a muscle and contracts alongside surrounding tissue when the muscle contracts.

EX: Radius and Ulna

Ligaments

Bone connected to bone