Skeletal System




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skeletalsystem.organsofthebody.com

 Function:
The Skeletal System allows your body to move, provides structure, produces blood in the bone marrow, and protects your organs. We need the skeletal system to hold up our bodies our else we would be piles of muscles and organs.

Organs and Functions:
Bones: make up your body and protect you vital organs.
Joints-You have three types of joints
     Hinge joint- This joint is formed at the ankle, knee, and elbow allowing the bones to extend and   flex.
     Ball and Socket joint- This joint can be found in the hip and allows movement and rotation in more than one direction.
     Pivot: allows the head to move side to side, in other words pivot.
     Gliding Joints: allows bones to glide up, down, side, side, and diagonally.
Cartilage: connective tissue found in the larynx.
Tendons: attach muscles to bones.
Ligaments: connect to bones to two pieces of cartilage together.

Interactions With Other Systems:
The skeletal system works with the muscular system. The bones in your bod are connected to the muscles which is how your body moves. If the skeletal system didn't work with the muscular system your body could not flex, release, or perform other movements. Due to the reason the skeletal system works with cartilage, the movements of your body are much smoother. As well as that, it works with the circulatory system. The bone marrow in the skeletal system provides red and white blood cells to the circulatory system.

Analogy:
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The skull reminds me as a helmet for your brain. This is because it covers and protects your brain as best as it can from injuries. The one main goal of the skull is to protect your brain from injury. Your helmet protects your head because in some serious cases the skull can crack leading to drastic brain damage. This is why we have a skull and why we always need to wear a helmet when biking.

Structure and Function (Spine) :
The spine supports the weight of the head and neck. In addition, it is the reason your body can absorb impact. The spine can withstand impact due to slowly taking in the impact. The invertebral disk absorbs energy and weight on demand. As you get older this disk gets weaker which is why you cannot carry or jump at an old age. The cervical spine goes through the motions of flexing, extending, rotating, and bending side to side. The thoracic spine, located around the rib cage does not go through much movement. Lastly, the lumbar region does not rotate, but flexes and bends. The spine would not be able to rotate, flex, extend, and absorb the way it does without being built into "sections" or working vertebrae by vertebrae.

Source:
http://coewww.rutgers.edu/classes/mae/mae473/LectureSpine.pdf

 Fun Fact:
A little fun fact, it takes 206 bones to make a skeleton.

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