2 FunctionA. Transportation system of the body. B. Carries oxygen and nutrients.C. Also carries substances called hormones, which control body processesD .Antibodies to fight invading germs.E. Gets rid of waste materials (CO2).
3 The heart, the lungs, and the blood vessels work together to form the circle part of the circulatory system.
9 3. Pulmonary Circulation Movement of blood from the heart, to the lungs, and back to the heart again SEGGk
10 Parts of the Circulatory System Divided into three major parts:1.The Heart2.The Blood3.The Blood Vessels (arteries & veins)
11 The Heart A.Size of your fist B. Made of specialized striated cells called cardiac muscle.C. Located in the left center of the chest and protected by the sternum.D. Divided into 4 chambers
12 The Heart1. Atria (atrium): chambers in the top of the heart which receive blood from other areas of the body2. Ventricles bottom parts of the heart, pump blood to different parts of the body3. Pumps about 4-5 liters of blood per minute about 9,000 liters a day4. It beats between beats per minute
13 Hollow tubes that circulate your blood Blood Vessels:Hollow tubes that circulate your blood
14 Three Kinds of Blood Vessels ArteriesVeinsCapillaries
15 A. Arteries 1. Carry blood AWAY from the heart 2. Very muscular 3. Main artery called the aorta is the largest arteryAorta divides and branches into many smaller arteries4. The only artery that does not carry oxygenated blood is Pulmonary artery.
16 Have strong, muscular walls The inner layer is very smooth so that the blood can flow easily
18 B. Capillaries 1. Connect arteries & veins 2. Are the smallest of the blood vessels3. Very thin only one cell thick4. Found all over body5. Where exchange of oxygen, waste and other transfers occur between the blood vessels and the tissue.
19 Oxygen & Nutrients dropped off to tissue while waste & CO2 picked up and taken into blood then move into viensw3.uokhsc.edu
21 C. Veins 1. Carry blood back to the heart 2. Only vein that does not carry un- oxygenated blood is the pulmonary vein3. Walls are thinners then arteries4. Have small valves to prevent blood from flowing backwards.5. Largest vein is the Vena Cava.
22 Veins Receive blood from the capillaries Transport waste-rich and oxygen-poor blood back to the lungs and heartAllow blood to move in one directionBlood is usually purplish due to low oxygen levels (de-oxygenated)
23 Valves are located inside the veins Valves are located inside the veins. The valves only allow blood to move in one direction.
28 Unoxygenated blood comes in from the top of the body through the superior vena cava and Unoxygenated blood comes in from the lower body though the inferior vena cava.UNoxygenated blood enters the atrium on the right side of the heart.
29 The atrium contracts and the tricuspid valve opens, forcing the blood down into the ventricle.
30 The ventricle contracts The ventricle contracts. This forces the unoxygenated blood through the pulmonary valve and into the pulmonary arteries.
31 The right pulmonary artery takes the unoxygenated blood to the right lung. The left pulmonary artery takes the unoxygenated blood to the left lung.THE PULMONARY ARTERIES ARE THE ONLY ARTERIES THAT CARRY UNOXYGENEATED BLOOD.
32 THE PULMONARY VEINS ARE THE ONLY VEINS THAT CARRY OXYGENATED BLOOD. Oxygenated blood from the right lung returns to the heart through the right pulmonary vein. Oxygenated blood from the left lung returns to the heart through the left pulmonary vein.THE PULMONARY VEINS ARE THE ONLY VEINS THAT CARRY OXYGENATED BLOOD.
34 The left atrium contracts The left atrium contracts. This forces the oxygenated blood through the mitral (bicuspid) valve into the left ventricle.
35 Left ventricle contracts and Oxygenated blood is forced into the aorta to be carried to the rest of the body.
36 Blood carrying carbon dioxide then returns to the heart. Oxygenated blood is carried to all body cells where oxygen diffuses into the cells and carbon dioxide diffuses into the blood.Blood carrying carbon dioxide then returns to the heart.
38 http://www.youtube.com/watch?v=q0s- 1MC1hcE&feature=related Meanwhile…While the blood is moving oxygen and carbon dioxide around, it is also moving nutrients, other wastes, hormones, and antibodies at the same time.1MC1hcE&feature=related
39 Close up of heart valve Heart sounds are made by the valves as they open and close
40 Get out ISN so we can finish Notes on Circulatory System Write in Planner-Finish notes & brainpop video/quiz-Homework due Thursday!!
41 Blood http://www.youtube.com/watch?v=4GUYdaM3QIY&feature=related A. Responsible for carrying food & oxygenB. There is about 5 liters of blood in the average size adult human bodyTravels 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.Blood
42 1. PlasmaA. Plasma is the liquid part of the blood made up of mostly waterB. About half of your blood is made of plasmaC. Nutrients, minerals, oxygen are dissolved and carried to body cells, waste from body cells is also carriedPlasma is made in the liver.
44 Red Blood Cells RBC are made in the center of long bones Contain hemoglobin that helps the RBC to carry oxygen to all parts of body.About 5,000,000 Red Blood Cells in ONE drop of blood.Takes carbon dioxide and transports it back to the lungs
46 White Blood Cells White blood cells protect the body from germs Are part of the immune systemDefend body against bacteria, viruses, foreign substancesAttack and destroy germs when they enter the body
47 Platelets Platelets are blood cells that help stop bleeding Help clot blood when a person is cut.
50 Blood Types The universal donor is O Blood The universal recipient is AB BloodBlood transfusionType A can receive Type A or Type OType B can receive Type B or Type )Type AB can receive Type A, Type B, Type AB or Type OType O can only receive Type OBlood Types