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Skeletal & Muscular System
Skeletal System
Function:
The skeletal system ….
-Holds the body up (structure and shape)
-Protects internal organs
-Helps the body move
-Stores minerals, Calcium, Phosphorus
-Makes blood cells
PARTS-BONES
-make up the skeletal system
-Made of living cells and protein fibers
- Produce blood cells in the bone marrow
- - 206 bones in adult body
- - 300 bones in infant (later fuse together)
PARTS-CARTILAGE- gives shape
-Connects the bones
-Supports the body
-Softer and more flexible than bone
PARTS-LIGAMENTS
-holds bones together at the joins
-Connects bone to bone
-900 ligaments in human body
PARTS-JOINTS
-place where 2 or more bones connect together
-Allow movement
PARTS-TENDONS
-tough connective tissue that
connects bone to muscle
http://science.howstuffworks.com/life/6830-human-body-bone-strength-video.htm
MUSCULAR SYSTEM
Function
The muscular system…
-helps you move
-helps move blood through the body (arteries/veins/capillaries)
-pumps your blood (heart)
-helps you breathe (lungs)
-moves food through digestive system (stomach, intestines)
TYPES OF MUSCLE
SMOOTH MUSCLE
-tissue in walls of organs, arteries, veins
-In the stomach, lungs, and other soft internal organs
-Involuntary movement (moves by itself)
-Controls the way blood flows through circulatory system
TYPES OF MUSCLE
SKELETAL OR STRAITED MUSCLE:
-attached to legs, arms, back, and torso
-Helps to move bones
-Voluntary movement
TYPES OF MUSCLE
CARDIAC MUSCLE:
- only in the heart
-involuntary movement (moves by itself)
CONNECTION TO OTHER SYSTEMS
-Skeletal and muscular system work together to help you move
-Muscular system works with circulatory system to pump blood through the body
-Muscular system works with digestive system to move food through digestion
-Muscular system works with respiratory system to exchange gases
-Muscular system works with excretory system to eliminate waste
-Nervous system controls skeletal and muscular system
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