The heart anatomy and blood pressure

The heart Involuntary muscle a bit larger than a man’s fist Slightly left of the sternum, between second and fifth ribs Each half has two chambers, the atrium (upper) and ventricle (lower) Arteries to body from heart Veins to heart from body

Blood flow through heart Three veins in right atrium blood return to heart Inferior vena cava Superior vena cava Coronary sinus (from walls of heart) Pulmonary artery from right ventricle Oxygenate blood Exchanged carbon dioxide

-aortic reflex slows heart when pressure gets to high Sensors -aortic reflex slows heart when pressure gets to high -Cartoid sinus reflex increases the heart rate when the pressure becomes to low

Chambers Chambers on the right relate to the lungs (pulmonary) Chambers on the left (systemic)

Valves Tricuspid – right – to R ventricle from L atrium Bicuspid – left to L ventricle from L atrium Semilunar valves – aorta to body **keeps blood one way

Mayo Clinic Video Heart Anatomy

Blood Pressure Read pages 38-41 in lab book (7 min)

Blood Pressure Questions Define Sytolic Diastolic What is hypertension Causes of hypertension Procedures for taking BP Where do you place cuff How to control blood pressure

Blood Pressure How to measure blood pressure

Homework Pages 30-31 Make sure p 20 is also done Tomorrow Check HW BP review Practice BP Organize Lab