A soft tissue inside the bone that produces blood cells

Portion of the skeletal system that consists of the skull, rib cage, and vertebral column

outermost layer of skin

A place in the body where two bones come together

Connects bone to bone

A pigment that gives the skin its color

The inner framework made up of all the bones of the body

Structure in the dermis of the skin from which a strand of hair grows.

Connects muscle to bone

26 small bones that make up your backbone

A condition in which the body's bones become weak and break easily.

A connective tissue that is more flexible than bone and that protects the ends of bones and keeps them from rubbing together.

A muscle that is attached to the bones of the skeleton and provides the force that moves the bones.

involuntary muscle found in internal organs

Involuntary muscle tissue found only in the heart.

middle layer of skin

tiny opening on the surface of the skin

A disease in which some body cells grow and divide uncontrollably, damaging the parts of the body around them.

muscle that can be consciously controlled

muscle you cannot consciously control

a dense layer of vascular connective tissue surrounding the bones except at the surfaces of the joints.

a fibrous protein forming the main structural constituent of hair, feathers, hoofs, claws, horns, etc.

oily substance secreted by sebaceous glands

a smooth muscle attached to hair follicles that causes "goose bumps" to appear on the skin when contracted