Skeletal System Skeletal System Body

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Skeletal System Skeletal System Body Powered By Docstoc
					Skeletal System

   Body System
    Mr. Ferraro
  Sr. High Health
            Skeletal System

• The skeletal
  system provides a
  living structure
  for the body.
  How the Skeletal System
          Works
             Skeletal System Functions

 Provides strong, stable, and mobile __________________

 Supports and Protects_______________ from damage

 Acts as a framework for attached muscles

 Allows for__________________ of limbs and digits

 Produces new ________________________ blood cells

 Storing fat and minerals, such as calcium and phosphorus
  How the Skeletal System
          Works
             Skeletal System Functions

 Provides strong, stable, and mobile framework

 Supports and Protects internal organs from damage

 Acts as a framework for attached muscles

 Allows for movement of limbs and digits

 Produces new red blood cells

 Storing fat and minerals, such as calcium and phosphorus
Skeletal System– Two Main
           Parts
               Skeletal System Structure
    ________________ Skeleton includes the _____ bones of
 the skull, spine, ribs, sternum, vertebrae, and ribs.


    ________________ Skeleton includes the ____ bones of

    the shoulders, arms, hands, hips, legs, and feet.
Skeletal System– Two Main
           Parts
               Skeletal System Structure
    Axial Skeleton includes the 80 bones of the skull, spine,
 ribs, sternum, vertebrae, and ribs.


    Appendicular Skeleton includes the 126 bones of the

    shoulders, arms, hands, hips, legs, and feet.
               Bones
• Bone tissue is surrounded by Calcium
  and other minerals.
                 Bones
• Bone shapes include Long bones,
  Short bones, flat bones, and Irregular
  bones.



                  Flat bone
                  (rib)

     Long bone                      Short bone
     (humerus)                      (wrist)
     Connective Tissue

      Three Types of Connective Tissue


Cartilage      Ligaments         Tendons
               Connective Tissue
  • __________ can act as a cushion
    between _____________ or as a
    flexible structure for soft parts of the
    body, such as the tip of the nose.



  Cartilage
A strong, flexible
connective tissue
               Connective Tissue
  • Cartilage can act as a cushion between
    Bones or as a flexible structure for soft
    parts of the body, such as the tip of the
    nose.



  Cartilage
A strong, flexible
connective tissue
        Connective Tissue
• All bones begin in the embryo as
  cartilage. Early in development, the
  cartilage hardens in a process called
  _______________________.

                    __________________
                    The process by which
                    bone is formed, renewed,
                    and repaired
        Connective Tissue
• All bones begin in the embryo as
  cartilage. Early in development, the
  cartilage hardens in a process called
  ossification.

                    Ossification
                    The process by which
                    bone is formed, renewed,
                    and repaired
              Connective Tissue
 • _______________ attach to bones to
   create joints.


__________________
A band of fibrous, slightly
elastic connective tissue that
attaches one bone to another
              Connective Tissue
 • Ligaments attach to bones to create
   joints.


Ligaments
A band of fibrous, slightly
elastic connective tissue that
attaches one bone to another
              Connective Tissue
• Muscles and tendons work together to
  move parts of the body.

Tendon
A fibrous cord that attaches
muscle to the bone
        Connective Tissue
• Joints are points at which bones meet.
  Some joints are flexible and some do
  not move.

• The structure of a joint relates to the
  type of motion it can produce.
               Joints
           Flexible Joints


Ball-And-Socket
                      Hinge Joints
     Joints



 Pivot Joint        Ellipsoidal Joint
                  Joints

• A ball-and-
  socket joint is a
  movable joint,
  with one bone
  that is rounded
  and fits within
  another bone
                                    Hip
                           (ball-and-socket joint)
              Joints

• The knee joint is
  one example of a
  ________________
  ________________.




                           Knee
                       (hinge joint)
                Joints

• The knee joint is
  one example of a
  Hinge Joint.




                             Knee
                         (hinge joint)
Caring for the Skeletal System
            Caring for the Skeletal System

  Eat a healthy diet, including foods high in calcium,
    vitamin D, and phosphorus.


  Get regular physical activity, including weight-bearing
    exercises.

    Have regular checkups to keep your skeletal system
  healthy.


  Wear protective gear during sports.
  Caring for the Skeletal System
  • During regular checkups, your doctor
    can screen you for skeletal disorders
    such as _______________.

 __________________
A lateral or side-to-side curvature
of the spine
  Caring for the Skeletal System
  • During regular checkups, your doctor
    can screen you for skeletal disorders
    such as Scoliosis.

 Scoliosis
A lateral or side-to-side curvature
of the spine
                     Fractures
A fracture is any type of break in a bone.
                      The broken end of the bone breaks through the
   Open Fracture
                      skin.

  Closed or Simple    The broken bone does not break through the
      Fracture        skin.
                     Fractures
Fractures are also classified by the pattern of the break.
Hairline
                      Parts of the bone do not separate.
Fractures

Transverse
                      The fracture is completely across the bone.
Fractures

Comminuted            The bone shatters into more than two pieces,
Fractures             usually from severe force as in an auto accident.
               Examples
• Viewer Discretion
  Advised!
                 Injuries to Joints
                     Occurs when a bone slips out of place, tearing
Dislocation
                     the ligaments that attach the bone at the joint.

                     Can result from a sharp blow to a joint or a
Torn Cartilage
                     severe twisting of a joint.

                     Painful inflammation of bursa, a fluid-filled sac
Bursitis
                     that helps reduce friction in joints.

                     Painful swellings of the bursae in the first joints
Bunions
                     of big toes.

                     Inflammation of a joint, resulting from an injury,
Arthritis
                     natural wear and tear, or autoimmune disease.
    Understanding Skeletal
          Problems
• A bone scan can detect signs of
  osteoporosis, a condition that causes
  bones to become weak and brittle.
                           Sources
•   http://www.contmediausa.com/shop/app/products/Human3D/Images/BS000A.jp
    g
•   http://www.zmescience.com/wp-content/uploads/2007/10/knee_cartilage.jpg
•   http://www.ohsuhealth.com/images/gs/ei_0277.gif
•   http://graphics8.nytimes.com/images/2007/08/01/health/adam/8956.jpg
•   http://www.longmonthealth.com/images/scoliosis.gif
•   http://www.kompasstechnologies.co.nz/images/Store896/%7BDBF5D80E-E636-
    43E5-AE67-571E6108003B%7D.jpeg
•   Glencoe Health 2009

				
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