2Warm Up: OBJ/HW/WU on page 108 Read the Circulatory System Poem Answer in your notebook:How is the circulatory system like a highway? Use a few examples from the poem.
3FunctionTransportation system by which oxygen and nutrients reach the body's cells, and waste materials are carried away.Also carries substances called hormones, which control body processes, and antibodies to fight invading germs.
4Circulatory System Works with…. Digestive System~ breaks down food and nutrientsRespiratory System~ provides oxygen that cells need to release energyTransports materials from the digestive system and the respiratory system to the cells
5Parts of the Circulatory System Divided into three major parts:The HeartThe BloodThe Blood Vessels
6The heart, the lungs, and the bloo d vessels work together to form the the circulatory system.
15Hollow tubes that circulate your blood Blood VesselsHollow tubes that circulate your blood
16Three Types of Blood Vessels ArteriesVeinsCapillaries
17ArteriesCarry blood AWAY from the heartHeart pumps bloodMain artery called the aortaAorta divides and branchesEach region of your body has system of arteries supplying it with fresh, oxygen-rich blood.
18ArteriesTough on the outsideSmooth on the insideMuscular wall helps the heart pump blood
19Have strong, muscular walls The inner layer is very smooth so that the blood can flow easily
25Valves are located inside the veins Valves are located inside the veins. The valves only allow blood to move in one direction.
26Veins Carry blood to the heart Receive blood from the capillaries Transport waste-rich/ oxygen-poor blood back to the lungs and heartValves are located inside the veinsAllow blood to move in one direction
28Close up of heart valve Heart sounds are made by the valves as they open and close
29Blood Pumped by your heart. Travels through thousands of miles of blood vesselsCarries nutrients, water, oxygen and waste products to and from your body cells.Made up of liquids, solids and small amounts of oxygen and carbon dioxide.
30Red Blood CellsRed blood cells carry oxygen from the lungs to all the cells of the body.Takes carbon dioxide and transports it back to the lungsAbout 5,000,000 Red Blood Cells in ONE drop of blood.Made in red bone marrowCirculate for 120 days
36Plasma Plasma is the liquid part of the blood About half of your blood is made of plasmaThe plasma carries the blood cells throughout the body10% dissolved gases, salts, nutrients, enzymes, hormones, wastes, and proteins.90% waterPlasma is made in the liver.