Transcript Document
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 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 Aim – How do materials circulate through the body? Blood • What else does blood carry? • Nutrients to our cells • Wastes from our cells 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 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=LqhvmUE dOYY • Circulatory rap 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=NYBrJZQt4w • http://www.youtube.com/watch?v=oZ1_TAwC UWw • http://www.thetech.org/sites/default/files/act ivity_3.pdf • wordbank Aim – How do materials circulate through the body? Exit ticket • Describe the path of the circulatory system