Humerus
a long bone with a rounded head epiphysis and a long central shaft called endophysis.
Ulna
________ has an extended bone.
Bacteria
________ break down sugars to make acids.
Collar Bone
The bone that prevents the shoulder from bending inward.
Erosion
________ of denting exposes pulp, which makes the tooth painful.
Plaque
Substance hardened to tartar which is not removed by simple brushing.
Tartar
Deposition that roughens the surface of teeth.
Hinge Joint
Joint that functions like the hinge on a door, allowing bones to move in one direction back and forth with limited motion along other planes.
Ulna
________ has cavity where part of humerus fitted to make hinge joint.
Ulna
The bone thicker than radius.
Ulna
________ is longer than radius.
Skull
The most anterior part of the body. It encloses and protects the brain. It also holds and protects the main sense organ.
Backbone
It makes the central axis of the body. It keeps us upright and holds the weight of body. It is made of 33 irregular bones stacked one above the other.
Ribs
Encloses and protects the heart, lungs and major blood vessels. They also move to bring inhalation and exhale.
Antagonistic muscles
Muscles arranged in pairs, when one contracts, the other relaxes