13C: Bones and 13D: Muscles

Skeletal system: ______.

• The system that the bones form together.

• A network of muscles and tendons.

• The body's digestive tract.

• The system responsible for blood circulation.

Periosteum: ______.

• A tough, white tissue that covers bones.

• A type of muscle tissue.

• A layer of skin.

• A type of cartilage.

Spongy bone: ______.

• Hard and rigid bone with empty spaces inside.

• Soft and flexible bone with no spaces.

• Dense and compact bone with no spaces.

• Porous and lightweight bone with spaces.

Compact bone: ______.

• Hard bone made of circular layers.

• Soft bone with spongy texture.

• Bone with hollow spaces.

• Flexible bone with elastic fibers.

Bone marrow: ______.

• Fills the marrow cavity and spaces in spongy bone.

• Supports the body's weight.

• Protects internal organs.

• Produces hormones.

Cartilage: ______.

• A type of connective tissue that is softer and more flexible than bone.

• A type of muscle tissue found in the heart.

• A type of nerve tissue responsible for transmitting signals.

• A type of epithelial tissue that forms the outer layer of skin.

Growth plate: ______.

• An area made of cartilage where bones grow.

• A type of muscle tissue.

• A part of the nervous system.

• A type of blood vessel.

Joint: ______.

• Where two or more bones meet.

• A type of muscle tissue.

• A type of connective tissue.

• A type of nerve cell.

Ligament: ______.

• A flexible band of connective tissue that holds together the bones of most joints.

• A type of muscle tissue responsible for movement.

• A fluid-filled sac that reduces friction between tissues.

• A type of bone cell that breaks down bone tissue.

Muscular system: ______.

• The system responsible for movement. Muscles contract to move your body.

• The system responsible for digestion. It breaks down food into nutrients.

• The system responsible for circulation. It pumps blood throughout the body.

• The system responsible for respiration. It exchanges gases in the lungs.