The Skeletal system

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The Skeletal system
Do Now Pick up the skeleton worksheet and match
up the name of the bone with the bone. Do your
best ?
Understandings Why do we have a skeletal
system? What makes up our skeletal system?
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Objective

• Label the parts of the skeletal system
• Explain how the skeletal system functions
• Identify problems with the skeletal system
• Recall how to care for your skeletal system

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Skeletal System

• Body System a group of organs that work together
  to perform an important function
• Skeletal System a frame work of bones that
  supports you, allows you to move, protects vital
  organs and produces blood cells
• Functions
• Supports you
• Allows you to move
• Protects vital organs
• Produces blood cells

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The Skeletal System

• Made up of 206 bones.
• The bones of the face, skull, vertebral column
  and rib cage make up your bodys central
  framework for support. (Protects vital organs!)

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Important Bone Terms

• Cartilage a strong flexible tissue on the ends
  of some bones
• It provides a cushion where bones come together.
• Ligaments strong cords of tissue that connect
  bones to bones in your joints.

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Support and Movement

• Which bones provide support and movement?
• Bones of the
• Arms
• Legs
• Pelvis
• They work with muscles to help us move!

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Anatomy of a Bone

• The Inside of a Long Bone

• Parts of a Long Bone

• Periosteum covering on bones
• Compact Bone hard bone
• Spongy Bone soft bone
• Bone Marrow blood cells made here
• Parts of the Bone

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Movie The Skeletal System
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How do our bones move?

• Joint a point at which two bones meet.
• Without joints, you could not move.
• Three main kinds of joints
• Hinge Joint
• Ball and Socket Joint
• Fixed Joint

Muscle and Bones Make Joints Move
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Joints
Types of Joints Movements Locations
Hinge Joint Provides back and forth movement. Elbow, Knees
Fixed Joint No movement is allowed. Plates of the skull
Ball-and-Socket Joint Allows a wide range of movements. Shoulder, Hip
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The Skeletal System

• Skull
• Clavicle
• Scapula
• Humerus
• Sternum
• Rib Cage
• Vertebrae
• Ulna
• Radius
• Femur
• Patella
• Fibula
• Tibia

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The X-Ray GIFs of Cameron Drake

• Moving X-rays

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Brain Pop Videos

• Joints
• Broken Bones

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Problems and Caring for the Skeletal System
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Skeletal System Problems

• Osteoporosis

• Osteoporosis Fact!

• A disease in which bones become thin and brittle.
• Who does this affect?
• 55 of people who are over the age of 55.
• Of the 10 million Americans who have this
  disease, 8 million are women and 2 million are
  men.
• (from http//www.nof.org/osteoporosis/diseasefacts
  .htm)

• About 85-90 of adult bone mass is acquired by
  age 18 in girls and 20 in boys. Building strong
  bones during childhood and adolescence can help
  to prevent osteoporosis later in life.
• (from http//www.nof.org/osteoporosis/diseasefacts
  .htm)

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Skeletal System Problems

• Scoliosis

• Photograph of someone with scoliosis.

• Causes deformity of the spine win which the
  spine develops an S-shaped curve when viewed from
  behind.
• Can this affect you? Affects 2 of women and .5
  of men in the general population

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Skeletal System Problems

• Sprain

• What happens when you sprain your ankle?

• Stretching or partial tearing of ligaments.
• Can be painful and cause swelling around the
  injured joint.
• http//yucky.discovery.com/flash/body/yuckystuff/a
  nklesprain/js.index.html

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Caring for your Skeletal System

• Exercise regularly using weights, walking,
  running, jumping rope, dancing, hiking, soccer,
  or basketball (just to name a few activities!).
• Wear proper fitting shoes.
• Select foods and beverages rich in calcium,
  phosphorus, and vitamin D.
• Sit, stand, and walk with correct posture.
• Participate in screenings for scoliosis.

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Skeleton Game

• Labeling the Skeleton