Grades 10-12 Double Click Space To Continue Bone The dense, semi rigid, porous, calcified...

THE SKELETAL SYSTEMBY: GARRICK ADAMSON

Grades 10-12

Double Click Space To Continue

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

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

BONE CLASSIFICATIONS

Long Bones

Short Bones

Flat Bones

Irregular Bones

Round Bones

PICTURE SLIDE

Long Bone Flat Bone

Irregular Bone Short Bone Round Bone

LONG BONE DESCRIPTION

Have longitudinal axes

Expanded ends (Epiphysis)

Acts as a lever

EXAMPLE OF LONG BONE

The Femur Located in thigh Supports movement

SHORT BONE DESCRIPTION

Cube like

Equal lengths

Equal widths

EXAMPLE OF SHORT BONE

The Talus Located in the ankle Acts as major ankle bone

FLAT BONES (3 DESCRIPTIONS)

Plate like structures

Broad Surfaces

Provides protection

EXAMPLE OF FLAT BONE

The Scapulae Located in the shoulder Serves as a broad plate for anchoring

muscles

IRREGULAR BONE DESCRIPTION

Variety of shapes

Connected to several other bones

Major function is support

EXAMPLE OF IRREGULAR BONE

The Vertebral Column Located in the back Has 33 articulated ring like bones

ROUND BONE DESCRIPTION

Usually small and nodular

Embedded in tendons

Act as pullies

ROUND BONE EXAMPLE

The Patella Located in the Knee Articulates with femur

BONE GROWTH

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

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)

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

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.