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Sunday, March 28, 2010

The Skeletal System

Function:

All the bones and organs of the body make up this system. The skeletal system is the framework of your body. Five major functions of it are...
  • Gives shape and supports your body.
  • Protects everything on the inside (internal organs).
  • Major muscles are attached the the bones.
  • New blood cells are formed at the marrow of some of the bones.
  • Calcium and phosphorous are stored in the bones for later use.
The average human starts out with 300 bones, and ends with about 206 bones. Your tendons connect your muscles to your bones. Joints are a place where two bones meet, joints are held together by ligaments. There are three types of joints: gilding joint, ball-and-socket join, and a hinge joint.
Organs:
Heart
Brain
Stomach
Lungs
Intestines
More about the stomach:
The stomach carries out digestion, and all the tissues work together to carry it out. The stomach stores some of the food we eat. It also breaks down the food, and also slowly empties out the food stored into the small intestine.
Tissues that make up the stomach:
Nervous Tissue
Epithelial Tissue
Muscle Tissue
Connective Tissue
Interactions with other systems:
  • Interacts with the nervous system, because when you are responding to your nervous system, you have to move and use your joints and bones.
  • Interacts with muscular system, because both help with movement.

Diseases, Disorders & Other Problems:
  • A sprain is when a ligament is stretched too far and is torn.
  • Arthritis is a disease that affects the joints. The joints may swell or stiffen, and this disease is very painful.

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