Skeletal system P 2 - Doral Academy Preparatory School · 2/19/2013 · 2/19/2013 1 [Rafael Verde]...
Transcript of Skeletal system P 2 - Doral Academy Preparatory School · 2/19/2013 · 2/19/2013 1 [Rafael Verde]...
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[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
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� 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
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� 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
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� 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
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�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
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�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
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� 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
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�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
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� 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
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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
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Quiz!!!!!!!!
�Name one Interesting fact in the PowerPoint
� NIAMS. (2011, January). Fast facts of osteoporosis. Retrieved from
http://www.niams.nih.gov/Health_Info/Bone/Osteoporosis/osteoporosis_ff.asp
� Shiel Jr., W. C. (2012, May 7th). Rickets symptoms, causes, treatments. Retrieved from
http://www.medicinenet.com/rickets/page3.htm
� Lifestyle Lounge. (2011). Skeletal system facts- interesting facts about the skeletal system. Retrieved from
http://lifestyle.iloveindia.com/lounge/skeletal-system-facts-13475.html
� 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
http://www.medicalnewstoday.com/articles/176941.php