grades 10-12 double click space to continue bone the dense, semi rigid, porous, calcified...
TRANSCRIPT
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THE SKELETAL SYSTEMBY: GARRICK ADAMSON
Grades 10-12
Double Click Space To Continue
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INTRO TO THE SKELETAL SYSTEM
Bone The dense, semi rigid, porous, calcified connective tissue forming the major portion
of the skeleton of most vertebrates. It consists of a dense organic matrix and an
inorganic, mineral component
http://www.thefreedictionary.com/bone
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BONE FUNCTIONS
Bones are The organs of the skeletal system that
Protect softer tissue Provide muscle attachment points House blood producing cells Store inorganic salts
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BONE CLASSIFICATIONS
Long Bones
Short Bones
Flat Bones
Irregular Bones
Round Bones
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PICTURE SLIDE
Long Bone Flat Bone
Irregular Bone Short Bone Round Bone
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LONG BONE DESCRIPTION
Have longitudinal axes
Expanded ends (Epiphysis)
Acts as a lever
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EXAMPLE OF LONG BONE
The Femur Located in thigh Supports movement
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SHORT BONE DESCRIPTION
Cube like
Equal lengths
Equal widths
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EXAMPLE OF SHORT BONE
The Talus Located in the ankle Acts as major ankle bone
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FLAT BONES (3 DESCRIPTIONS)
Plate like structures
Broad Surfaces
Provides protection
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EXAMPLE OF FLAT BONE
The Scapulae Located in the shoulder Serves as a broad plate for anchoring
muscles
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IRREGULAR BONE DESCRIPTION
Variety of shapes
Connected to several other bones
Major function is support
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EXAMPLE OF IRREGULAR BONE
The Vertebral Column Located in the back Has 33 articulated ring like bones
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ROUND BONE DESCRIPTION
Usually small and nodular
Embedded in tendons
Act as pullies
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ROUND BONE EXAMPLE
The Patella Located in the Knee Articulates with femur
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BONE GROWTH
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FACTORS OF BONE GROWTH
Pros
Healthy lifestyle
Healthy Diet
Daily activity
Proper calcium & vitamin D intake
Age
Cons
Poor diet
Smoking
Sedentary lifestyle
Disease
Age
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BONE INJURY
Types of Injuries
Green stick fracture Transverse fracture Impact fracture Compound fracture
http://www.youtube.com/watch?v=nEydeUcNxtI A video compilation of bone injuries in sports (Viewer
Discretion is advised)
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RISK FACTORS OF BONE INJURY
Your older than 65
You’ve broken a bone after age 50
Your close relative has osteoporosis or has broken a bone
Your health is "fair" or "poor"
You smoke
You am underweight for my height
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BOTTOM LINE
•Bones are essential to homeostasis
•A healthy life style along with knowledge will lead you and your bones to a long healthy life.