Essential Question
What makes you totally
complete?
Unit Questions
What is the skeletal system?
Why is oxygen important?
Where does digestion begins?
What are the three types of
muscles?
The Body
ED 498 Instructional Technology
By
Alma Wells
Overview
• Skeleton
• Digestive
• Muscles
• Respiratory
• Reproduction
The Human Skeleton
• 206 bones/flexible
• Bony framework
• Gives the body
–
–
–
–
Shape
Protect vital organs
System of levers
Enable the body to
move
Continues
• Houses
– Bone marrow
• Divided into two main
parts
• Axial skeleton
• Head
• Neck
• Trunk
– Blood-forming tissue
• Appendicular
• Arms
• Legs
• And their supports
Digestion
• Begins in the mouth
• Breaks down food /simple
substances
• Intestinal wall (pass)
• Bloodstream
• Nourish the body
Muscle
•
•
•
•
Over 600 elastic tissue
Holds bones together
Gives the body shape
Three types
– Skeletal muscle
• legs, arms, abdomen,
chest, neck, and face
– Smooth muscle
• Stomach, intestines, blood
vessels, and bladder
– Cardiac
• Walls of the heart
Respiratory
• Use of oxygen
• Divided 3 phrases
– External
• Takes in oxygen & releases
carbon dioxide
– Cellular
• Chemical reactions that
releases substance for cell
function
– Internal
• Oxygen transported to body
tissue & carbon dioxide is
carried away from them.
Reproduction
create more of one’s own kind
Science is wonderfully equipped
to answer the question "How?"
but it gets terribly confused
when you ask the question
"Why?"
Erwin Chargaff