Aim – How do materials circulate through the body? Do Now – Why are the skeletal and muscular system needed?

The list below includes three organ systems that are directly used when a human runs. circulatory system muscular system skeletal system Which system should also be included in the list? (1) immune system (3) digestive system (2) reproductive system (4) nervous system

Blood What is blood made of? Aim – How do materials circulate through the body? Blood What is blood made of? Red blood cells, white blood cells, water (plasma), and platelets What do RBC’s do? Carries Oxygen (O2) from lungs to the body, and carries CO2 from body to lungs What to WBC’s do? Help fight infections

Blood What else does blood carry? Nutrients to our cells Aim – How do materials circulate through the body? Blood What else does blood carry? Nutrients to our cells Wastes from our cells

Blood vessels Your blood is carried by 3 types of blood vessels Aim – How do materials circulate through the body? Blood vessels Your blood is carried by 3 types of blood vessels Veins – carry blood to heart Arteries – carry blood away from heart Capillaries – connect veins and arteries, this is where materials are exchanged

Heart Contains 4 chambers 2 atriums (upper chambers) Aim – How do materials circulate through the body? Heart Contains 4 chambers 2 atriums (upper chambers) 2 ventricles (lower chambers)

Aorta- largest artery in the body, pumps blood filled with oxygen

Aim – How do materials circulate through the body? FLOW The heart pumps blood, Oxygen, and other things like nutrients to the body via the arteries- AWAY Materials are exchanged at the capillaries Veins bring the blood back The circulatory system also goes through the liver and kidneys. These filter out unwanted materials and in the case of the kidney bring it to the bladder. http://medtropolis.com/virtual-body/

https://www.youtube.com/watch?v=LqhvmUEdOYY Circulatory rap

Defects Defects in this system can cause Anemia Heart disease Murmurs Aim – How do materials circulate through the body? Defects Defects in this system can cause Anemia Heart disease Murmurs Heart attacks Etc.

Aim – How do materials circulate through the body? http://www.youtube.com/watch?v=NYB-rJZQt4w http://www.youtube.com/watch?v=oZ1_TAwCUWw

http://www.thetech.org/sites/default/files/activity_3.pdf wordbank

Exit ticket Describe the path of the circulatory system Aim – How do materials circulate through the body? Exit ticket Describe the path of the circulatory system