Name _______________________________________ Date _________________ Period ___________
Skeletal and Muscular Systems Notes
Skeletal SystemFunction:
Components:
Bone Structure:Bones are a solid network of living cells and protein fibers that are surrounded by deposits of calcium salts.
- Periosteum:
- Haversian canals:
- Spongy bone:
- Bone marrow:
Bone Development:- Cartilage: - Ossification:
Bone Repair and Remodeling:
- Osteoblasts:- Osteoclasts:- Osteoprosis:
Joints:
Ligaments:
Injury: torn ACL:
Flexibility:
Muscular SystemFunction:
Components:
Skeletal Muscle:
Smooth Muscle:
Cardiac Muscle:
Muscle Contractions: Skeletal muscle cells contain myosin and actin filaments. These overlapping filaments work together to contract a muscle.
1. Motor neuron is stimulated and releases a neurotransmitter (acetylcholine, ACh)
2.
3. Muscle cell contracts (see picture to the right) until
Bone and Muscle Interactions
Tendons:
