Your Circulatory System Your Circulatory System The CIRCULATORY

Your Circulatory System

Your Circulatory System � The CIRCULATORY SYSTEM- is the group of organs and tissues that carry needed materials to cells and remove their waste products. � Includes: Heart, blood vessels and the blood. � Also called � CARDIOVASCULAR SYSTEM- organs and tissues that transport essential materials to body cells and remove waste products. � Cardio=Heart Vascular= vessels

Your Circulatory System � What does The Circulatory System do? � Moves blood through the body � Blood gives oxygen, food, and other materials to cells. � Also takes waste products away from cells

Parts of the Circulatory System � HEART- the muscle that acts as the pump for the circulatory system. � Heart has 4 chambers ◦ 2 Atria are the top chambers where the blood enters the heart ◦ 2 Ventricles at the bottom where the blood leaves the heart.

Parts of the Circulatory System � Three different types of blood vessels � ARTERIES- carry blood away from the heart to various parts of the body. � VEINS- carry blood from all parts of the body back to the heart. � CAPILLARIES- carry blood to and from almost all body cells and connect arteries and veins.

Parts of the Circulatory System � BLOOD PRESSURE- the force of blood pushing against the walls of the blood vessels. � Is highest when the heart contracts and pushes out blood. � Lowest when the heart relaxes between heart beats.

Parts of the Blood � Your blood supplies the body with nutrients and helps fight illness. � Made up of liquid and solids. � Liquid = plasma � is about half the blood and is mostly water. � Transports blood cells and dissolves food.

Parts of the Blood � Solids of the blood � White blood cells ◦ Help other body systems destroy disease causing germs. � Platelets � Small clot. disk shaped structures that help blood

Parts of the Blood � Solids of the blood � Red blood cells � Carry oxygen to all other cells of the body and carry away waste products. � 4 types of red blood cells � A, B, AB, O � 2 types of Rh factors: Positive and negative.

Problems Affecting the Circulatory System � Hypertension- high blood pressure. Can cause kidney failure, heart attack and stroke. � Heart attack- blockage of the blood flow to the heart. � Stroke- results of blood clots in the brain or from torn blood vessels

Problems Affecting the Circulatory System � Anemia- low levels hemoglobin protein that binds to oxygen in red blood cells. � Leukemia- type of cancer where abnormal white blood cells interfere with the production of other blood cells. � Hardening of the arteries that reduces blood flow.

Caring for your Circulatory System � Stay physically active � Get 60 minutes of physical activity a day � Eat a healthy diet � Avoid using Tobacco � Manage Stress in positive ways.