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Anatomy and Physiology of the Human Body: The Skeletal System. 50kg. 50kg. Click the Weightlifter's Head to Begin!. The University of Alabama in Huntsville Fall 2004.
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Anatomy and Physiology of the Human Body: The Skeletal System 50kg 50kg Click the Weightlifter's Head to Begin! The University of Alabama in Huntsville Fall 2004 Laura Cashio Keisha Roberson Chase Tyson
Instructions • Use the buttons at the bottom of each page to navigate through the slides. • The button will take you to the summary page. • The button will take you to the start of the Anatomy section. • The button will take you to the start of the Physiology section. • The button will take you to the end of the show. • Once within the 2 main sections, use the and the buttons to navigate through the slides of the current section. Let’s get started! Press the home button at the bottom to begin the show. A P STOP STOP
Summary of the Skeletal System • The Skeletal System helps to provide basic functions that are essential to life. It helps in: • Protection • Support • Blood cell formation • Mineral homeostasis • Storage • Leverage Now we will take a look at the basic anatomy and physiology of the Skeletal System. Press the “A” or “P” button to begin. STOP A P
Gross Anatomy • An average human skeleton has 206 bones. The major bones of the human skeleton are labeled in the picture. STOP A P
Gross Anatomy • The skeleton is broken into two two main parts: The axial and the appendicular skeletons.
The Axial Skeleton • The axial skeleton consists of 80 bones including the skull, the spine, the ribs and the sternum.
The Appendicular Skeleton • The appendicular skeleton includes the shoulders, the pelvis, and their attached bones. It contains 126 bones, 64 in the shoulders and upper limbs and 62 in the pelvis and lower limbs. It can be divided into the higher and lower extremities. STOP A P
Major Functions of the Skeletal System • Protects vital organs - your bones serve as a sort of armor for your insides! • Gives us shape - without bones we’d be a blob of organs and tissue! • Allows us to move - without bones we’d be “motionless” ! • Regulates Calcium – when blood calcium level gets too low, bones pitch in! • Forms blood cells – most of the blood cells are produced inside the bones! Fun Fact - Did you know you were born withabout 350 bones? Many of these fused to form single larger bones as you grew to leave you with the 206 you have now. STOP A P
Bone Composition • The bones are composed of 3 different layers: • Compact bone • Spongy bone • Bone marrow
Bone Protection and Connection • Joints - where 2 or more bones meet (think knees and elbows) • Ligaments - fasten bones to other bones • Tendons - fasten bones to muscles (ever sprained an ankle or wrist? - that’s a tendon you injured) • Cartilage - cap off bones and cushion them • Bursa - fluid filled sacs within bones (think “shock absorbers”)
Ligaments fasten bone to bone Made of white, fibrous, elastic bands Bind bone ends together to prevent excessive movement Tendons fasten bone to muscle Made of white, fibrous, elastic bands, same as ligaments Transmit muscular contractions that allow bones to move 2 Main Connectors of Bones STOP A P
Thanks for Viewing the Show! Click below to end the show END To view a list of used websites click here.
The following websites were used for graphics and contents: • http://www.innerbody.com/htm/body.html • http://webschoolsolutions.com/patts/systems/anatomy.htm • http://www.plainvilleschools.org/Curriculum%20Units/Science/Anatomy%20&%20Physiology/anat_phys.htm • http://www4.tpgi.com.au/users/amcgann/body/skeletal.html • http://www.exrx.net/Lists/Skeleton.html • http://pathstat1.ucop.edu/ag/course_descriptions/WPUSD_Sports%20Medicine.doc • http://www.mnsu.edu/emuseum/biology/humananatomy/skeletal/skeletalsystem.html • http://www.wisc-online.com/objects/index.asp?objID=AP13404 • http://www4.tpgi.com.au/users/amcgann/body/index.html • http://www.plainvilleschools.org/Curriculum%20Units/Science/Anatomy%20&%20Physiology/Skeletal/MAIN.HTM#Introduction • http://www.iowalakes.edu/faculty/klepper/archive/human%20anatomy%20and%20physiology/docs/06-bone_tissue.pdf END STOP