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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