2/19/2013. [Rafael Verde] [Andres Taquechel ][Amy Briones]

Transcription

1 [Rafael Verde] [Andres Taquechel ][Amy Briones] Order of slides: Intro Outline Facts Functions of skeletal system Organs Organs: Bone Structure Diseases Multiple Sclerosis Rickets Osteoporosis Interesting Facts Quiz!!!!! References 1

2 Bones in your body are living organs Bones make different tissues Cells in the bone use energy Bones are the framework of our body Gives shape and support to the body. Protects internal organs. Works with muscles and joints to move. Red marrow forms blood cells Stores phosphorus and calcium compounds 2

3 Every bone is considered an organ It is basically the only organ There are various internal and external characteristics Periosteum The surface is covered by Periosteum It is a tight fitting membrane and tough a. Blood vessels carry nutrients in the bone b. Important to repairs and growth of the bone c. Periosteum has two layers: d. The Cambium Layer and the Fibrous Layer 3

4 The inner Cambium layer digresses with age It is at its greatest during childhood It is also used to repair bones The outer Fibrous layer is also important It s a major contributor to blood supply The blood supply goes to the bone It also goes to the skeletal muscle Compact Bone It s under the Periosteum Elastic fibers keep the bone flexible It contains blood vessels, minerals, and bone cells 4

5 Spongy Bone: Less compact Has holes to make it lightweight Marrow: Fatty tissue that fills in cavities (spaces) Produces red and white blood cells Produces 2-3 billion red blood cells a second Cartilage: It is a thick, smooth layer It covers the ends of bones Absorbs the shock It also makes certain movements easier 5

6 Multiple sclerosis Rickets Osteoporosis It s an autoimmune disease It affects the brain and the spinal cord. Causes loss of vision, balance, and sensation Lack of movement causes problems with bones 6

7 Weakens the bone. Common on the elderly. People who smoke get it often. People with a lot of caffeine get it more often as well. Normally hurts the spine Childhood disorder that softens the bone Makes it prone to deformation and fractures Main cause is of lack of Vitamin D Another cause is lack of calcium It is fairly common in developing countries This is due to lack of nutrients 7

8 Milk and calcium can help prevent rickets Vitamin D and nutrients can also prevent rickets It causes bone to weaken May cause bones to break more easily It is very common in urban countries 10 million Americans have it It can occur in both men and women It can happen at any age It is most common with the elderly 8

9 There are 270 bones in a baby There is only 206 bones in an adult Human and Giraffes have the same amount of bones in their neck The femur is ¼ of your height All bone marrow is red at birth Quiz!!!!!!!! What is the bone surface covered by? A. Periosteum B. Spongy Bone C. Osteoporosis 9

10 Quiz!!!!!!!! What is the only organ in the skeletal system? A. The bones B. Red Marrow C. Osteoporosis in Giraffes Quiz!!!!!!!! What is the disease that normally happens with children? A. Rickets B. Osteoporosis C. Multiple Sclerosis 10

11 Quiz!!!!!!!! Name one Interesting fact in the PowerPoint NIAMS. (2011, January). Fast facts of osteoporosis. Retrieved from Shiel Jr., W. C. (2012, May 7th). Rickets symptoms, causes, treatments. Retrieved from Lifestyle Lounge. (2011). Skeletal system facts- interesting facts about the skeletal system. Retrieved from TeacherWeb.com. (2012). Skeletal- system- ppt_ notes. Retrieved from teacherweb.com/tx/../blevins/skeletal-system-ppt- Notes.doc Brunner, S. (2010, January 23rd). What is rickets? what causes rickets?. Retrieved from 11