Mr. Zajiczek's presentation on humans as a system.

1. The Human System A quick look at homo sapiens as a system.

2. Series of Subsystems Humans are a complex set of sub-systems Each system is interconnected The continued function of each system is required for humans to stay alive The first system is the circulatory system

4. Oxygenates blood via the lungs

5. Cleans blood through the kidneys

6. Delivers oxygen to the brain

7. Transports nutrients from digestion

9. Muscular System Moves the body – Pumps the circulatory system – Protects vital organs – Allows humans to capture food – Allows humans to flee from danger – Allows humans to relocate –

10. Muscular System Structure Three types: skeletal muscles, cardiac or heart muscles, and smooth (non-striated) muscles Skeletal muscles, like your bicep or quadricep, help us move Heart muscles pump blood through or circulatory system Smooth muscles move automatically, like your iris dilation muscles or your bowels

12. Controls muscular/circulatory systems

13. Initiates fight or flight response

14. Creates thought

15. Receives and interprets stimuli

17. Skeletal System Supports all other systems – Protects organs and vital systems – Houses spinal cord – Facilities eating (Jaw/Teeth) – Attaches to muscular system – Allows for locomotion –

18. Skeletal System Structure Think of your skeleton as the frame of a house or a building All the girders, beams and wood frames are like your skeleton Helps support our bodies and protect our organs (like our heart) Imagine someone without a skeleton (YUCK!)

20. Introduces nutrients into blood

21. Filters toxins out of food

23. Interconnected Each of those systems is interconnect Without one, the others would not function Without any of them, we would die Very complex systems with more subsystems Too many to list

24. References http://www.wikipedia.org http://commons.wikimedia.org/wiki/Main_Page