A
Specialized cells that constantly build bone.
Osteoblast
2 facts about the short bones...
Allows movement in the wrist and ankles; outside is compact and inside is cancellous.
Describes loss of muscle tone.
Atrophy
Example of abduction
Raising the arm away from the body.
Type of muscle that helps you digest food in the stomach and intestines.
Smooth Muscle
How many muscles are in the human body
over 600
2 facts about the sesamoid bones...
Helps us grab with our fingers and toes; located beside tendons and ligaments.
Specialized cells that dissolve bone.
Osteoclast
Connect bone to bone.
Ligament
Example of Flexion
Bending your arm or leg.
Type of muscle that pumps blood throughout the body.
Cardiac
Connect bone to muscle.
Tendon
Can be contracted at will.
Voluntary Muscle
The severe tightening of a muscle resulting in the bending of a joint.
Contracture
High in fat; can convert to red bone marrow to help in RBC production when more RBCs are needed.
Yellow Bone Marrow
Functions of the skeletal system
Provides framework for the body, stores calcium, produces blood cells in the red bone marrow, protects major organs.
Example of Extension
Standing straight up.
2 Facts about the long bones...
Produces red and yellow bone marrow; outside is compact and inside is spongy.
Makes red blood cells.
Red Bone Marrow
Example of adduction..
Movement of a limb towards the body.
Muscle movement that is not controlled by will.
Involuntary Muscle
2 facts about the flat bones...
Allows muscle to move over and protects organs; outside is compact and protects organs.
2 facts about the irregular bones...
Forms our faces and vertebrae; outside is compact and they are made into specific shapes.
2 Functions of the muscular system...
Movement, provides stability (muscles in the spine), and helps maintain normal body temperature by releasing heat when muscles contract.
Type of muscle that facilitates movements of all bones.
Skeletal Muscle