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7th Science Part 4

Science Order And Reality-Chapter 3- A Beka Book- Malia Faith Nelson

Axial skeleton Includes the 80 bones of the head, spine, and ribs.
Cranium Surrounds and protects the brain with eight flat bones that are fused together
Maxillary bones Forms the upper jaw bone, connects to every other facial bone except the manible
Manible Lower jawbone; this is the only movable bone in the skull
Sinuses Hollow spaces that help your voice resonate and lighten your skull
Vertebral column Backbone; consist of thirty-three vertebrae.
Sternum Breastbone
Appendicular skeleton Includes the bones of the appendages and the bones that connect them to the axial skeleton.
Clabicles Collarbones
Scapulas Shoulder blades
Pelvis Hipbones; this is made of several different bones and protects the organs of the urinary and reproductive systems
Joint A place where two or more bones meet
To allow the bones in movable joints to move easily, the ends are covered with a smooth tissue called _________. Cartilage
Ligaments Strong, tough tissues that connect bones to other bones
What are three types of movable joints? Hinge, pivot, and ball-and-socket
Hinge joint Similar to a hinge on a door; they allow back and forward movement
Pivot joints Allow turning movements
Ball-and-socket joints Are found in your shoulders and hips, allow you to move your arms and legs in many directions
Fracture A break or crack in a bone
Simple fracture A crack or break that does no cause the bone to pierce the skin's surface
Compound fracture A crack or break in a bone that actually breaks through the skin's surface
Created by: nelsonclan