Monday, March 2, 2009

The Skeletal System



The Skeletal System












http://video.google.com/videosearch?q=the+skeletal+system&hl=en&emb=0&aq=f

The skeleton is a strong, flexible framework that supports the body and protects the infornal or glands.
Consist of 206 bone

AXIAL is made up of the bones of te head, neck, and trunk.




APPENDICULAR is made up of the bone sof the arms and legs and their supports













TYPES OF BONES



Long Bones are bones in your legs and arms.












Short Bones are almost equal in lenghts and width (wrists and ankles)







Flat Bones are somewaht thinner and much flatter than other bones, they are located inthe skull . The scapula or shoulder blade is an example of a flat bone






Irregular Bones are irregularly shaped bones such as some facial bones or verebrae








CARTILAGE













































  • Is a strong, flexible connective tissue it is another component of your skeletal system.





















JOINTS



  • Joints are points at which bones meet.


  • Ball and socket joints are formed when the rounded head of one bone fits into the rounded cavity of an adjoining bone


  • Pivot Joints allow limited rotation ot turning of the head.






  • Ellipsoidal Joints such as the one in your wrist have an oval shaped part and is curved






















CARING FOR YOUR SKELETAL SYSTEM








Caring for your skeletal system is important so your body will not get skeletal disorder.







FRACTURES is any type of break in a bone


















OSTEOPOROSIS






















Condition in which proggressive loss of bone tissue accurs













































SCOLIOSIS






















Lateral or side to side curvature of the spine










































INJURIES TO JOINTS





















Dislocation-results when the ligaments that attach the bone at the joint are torn


























Torn cartlidge-can result from a sharp bow or the twisting of a joint.











































































REPETITIVE MOTION INJURY



















This is damage to tissue caused by prolonged repeated movements such as sewing or computer work























































THE MUSCULAR SYSTEM




























TYPES OF MUSCLES-SMOOTH MUSCLES act on lining of passageways and internal organs. SKELETAL Muscles are attached to bone and cause body movements. FLEXOR is a muscle that close a joint. EXTENSOR is a muscle that opens a joint. CARDIAC MUSCLES is a type of straited muscle that forms the wall of the heart.















































CARE OF THE MUSCLE SYSTEM
























Regular physical activity is the best way to care for the muscular system. MUSCLE TONE is the natural tension in the fibers of a muscle.











































PROMBLEMS OF THE MUSCULAR SYSTEM






















Bruise-is an area of dislocated skin that appears after an injury causes the blood vessels beneath skin to rupture and leak






















Muscle strain or sprain-results when a muscle is streched or partially torn as a results of overexertion






















Tendonits-or the inflamtion of a tendon






















Hernia-occurs when an organ or tissue protudes through an area of weak muscles.






































MUSCLE DYSTROPHY is inherted disorde in which muscle fiber are destroyed.

































































THE NERVOUS SYSTEM

















NEURONS

















Neurons are nerve cells.

















Cell body-contains the nucleous, the control center.

















Dendrites-are branched structures that extend from the cell body in most neurons.

















Axons-transmit impulses away from the cell body and toward another neuron, muscle cell, or gland.








































CENTRAL NERVOUS SYSTEM






Spinal Cord-is a longcolumn of nerve tissue about the thickness of your index finger extending about 18 inches down your back.








THE BRAIN


Intergrates and controls the activities of your nervous system.






BRAIN STEM
Is a 3 inch stalk of nerve cells

CEREBELLUM

Second largest part of the brain







































































































































































































































































































































































































2 comments:

  1. Ethan you had some good information and some good pictures, but I wonder if you previewed this at all. What was with the spacing b/w everything. I felt like I was scrolling the mouse three or four times just to get to the next couple of sentences. You really need to fix that. You lacked one video and a bibliography page (these are important). 75

    ReplyDelete
  2. Nice post - skeletal system pictures ..Keep Posting


    Ron
    skeletal system pictures

    ReplyDelete