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Section A: Skeletal System 1
Terms in this set (22)
The axial skeleton contains
cranium, vertebral column, rib cage
The appendicular skeleton includes
shoulder girdle, upper limbs, pelvic girdle, lower limbs
thin, flattened, and usually curved. Used for Protection EG Scapula, Sternum.
longer than they are wide. Used for Blood Cell Production and Leverage. EG Femur, Humerus
complex shapes with short, flat, notched, or ridged surfaces. Used for Attachment of Muscles and Support EG Vertebrae
cubed shaped, almost the same length and width. Used for Weight Bearing and Mineral Storage. EG Carpals, Tarsals
round bones found engulfed in tendons. Used to Reduce Friction. EG Patella.
Neutral Spine Position
Should be 'S' shaped when viewed from the side and straight when viewed from behind. Acts as the bodies natural spring.
abnormal sideways (lateral) curvature of the spine
excessive outward curvature of the spine, causing hunching of the back.
process of cartilage turning to bone, takes place in the growth plates.
the builders of new bone by secreting collagen.
clear away old bone by dissolving the minerals.
Bones SUPPORT our framework
allows our body to maintain its shape and to stand upright.
Bones provide LEVERAGE
allows the muscles to pull on the levers to create movements.
Bones WEIGHT BEAR
They are strong and thick and allow us to hold all our body weight.
They provide a hard shell to prevent damage to vital organs.
BLOOD CELLS are produced in bones
The spongy bone contains bone marrow which makes new blood cells (RBC and WBC)
Bone STORE MINERALS
inside the bone matrix minerals such as calcium and phosphorus are stored.
Bones provide ATTACHMENT for MUSCLES
They have a large surface area to allow tendons to attach muscles to the skeleton for movement.
Bones REDUCE FRICTION
At the end of bones we have cartilage and joints that enable smooth movements.
Spine Vertebral Column
Recommended textbook explanations
Anatomy & Physiology Student Workbook
Kent Pryor, Richard Allan, Tracey Greenwood
The Human Body in Health & Disease
Gary A. Thibodeau, Kevin T. Patton
Human Anatomy And Physiology
Elaine N. Marieb, Katja Hoehn
Anatomy and Physiology
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