AIM: Sample Do now: 1. What is a mineral? 2. If you put different types of mineral, what are you creating?
The Truth About Your Heart
The Circulatory System The Circulatory system is transport (high way) system of body The system delivers nutrients to the cells of body and remove waste products from the cells of body.
The parts of the circulatory system are BLOOD HEART BLOOD VESSELS
The Heart Located near the center of your chest muscular organ that pumps blood to the body. About the size of your fist
How the heart actually pumps blood https://www.youtube.com/watch?time_continue=4&v=ruM4Xx hx32U
The Heart The heart has a total of 4 chambers: 2 ventricles& 2 atriums
Blood Vessels As blood moves through the circulatory system it moves through 3 types of blood vessels: Arteries Capillaries Veins
Arteries Large vessels Carry blood AWAY from heart to cells of body
Capillaries Smallest blood vessels Walls are only one cell thick and very narrow.
Veins Medium to Large sized vessels Carry blood BACK TO the heart from cells of body
Roles of Blood blood is the main circulating fluid in the human body. Blood transports materials throughout the body inside blood vessels. It carries oxygen and foods to all parts of the body Blood protects the body against the diseases by destroying germs.
Blood Inside of the blood…. Red Blood Cells White Blood Cells Platelets Plasma
Blood Plasma Straw colored 90% water 10% dissolved gases, salts, nutrients, enzymes, hormones, wastes, and proteins.
Blood Red Blood Cells Most numerous type Transport oxygen Get color from hemoglobin Disk shaped Made in red bone marrow Circulate for 120 days
Blood White Blood Cells Guard against infection, fight parasites, and attack bacteria Number of WBC’s increases when body is fighting Lymphocytes produce antibodies which fight pathogens and remember them
Blood Plasma proteins 3 Types: Albumins, globulins and fibrinogen. Albumins and Globulins- transport substances such as fatty acids, hormones and vitamins. Fibrinogen- Responsible for blood’s ability to clot
Blood Platelets Aid the body in clotting Small fragments Stick to edges of broken blood cell and secrete clotting factor to help form clot.
Blood Clotting Problems Hemophelia Genetic disorder that disrupts clotting People must be very careful to avoid injury Can be treated by injecting extracts that contain the missing clotting factor.