Bell Ringer Period 1 Put belongings away Hw Due Thursday, Test Friday YOU WILL BE CALLED ON. REVIEW YOUR NOTES FOR THE FOLLOWING THIS: Components of blood Functions of blood Vessels

The Heart and the Pathway of Blood

The Heart (General Overview) The Heart acts as a perpetual pump pushing blood through vessels A bit larger than one’s fist in size Beats about 100,000 times per day Circulates 5-7 liters in 1 minute Pumps about 1 million gallons in a lifetime

Looking at the Heart Whenever you are looking at the heart it is ALWAYS FROM RIGHT TO LEFT IMAGINE YOU ARE LOOKING AT YOUR OWN HEART

Inside your Heart The Heart is made up of Chambers Upper chambers are called Atriums Lower chambers are called Ventricles

Our circulatory system is a double loop circulatory system. This means it has two parts parts. Lungs Body cells the left side of the system deals with oxygenated blood. Left Ventricle pumps 02-rich blood Towards Body Cells the right side of the system deals with deoxygenated blood. Delivers blood to lungs to get 02

Two Systems of Circulation Pulmonary circulation: between heart and lungs (exchange gasses) Systemic circulation: between heart and rest of body cells (gas, nutrient, and waste exchange)

The Heart Septum prevents mixing of oxygenated and deoxygenated blood Left Ventricle Left Atrium Right Atrium Right Ventricle valve Vein from Lungs Artery to Head and Body Artery to Lungs Vein from Head and Body Septum prevents mixing of oxygenated and deoxygenated blood Divides Heart

Bell Ringer A B Put belongings away Hw Due Thursday, Test Friday On A piece of paper answer the following questions: Name a FUNCTION of Blood Which Component of blood transports Oxygen? How many chambers are in the heart? What are the upper chambers called? Lower Chambers? Is A or B the left side of the heart above? The left side of the heart contains oxygenated or deoxygenated blood?