Circulatory System Notes

Pulmonary Circulation: Lungs, oxygen into blood, carbon dioxide out

Systemic Circulation: Moves blood to body (not to heart or lungs)

Coronary or Cardiac Circulation: Moves blood to the heart muscle

• Chamber: one of the four sections of the heart

• Valve- keeps the blood flowing in one direction in heart and veins

• Pacemaker- controls heart rate

• Atria (atrium)- the top two chambers of the heart that receive blood from lungs or body

• Ventricles- lower chambers that pump blood to the body or lungs

• Arteries- Blood vessels that carry blood away from the heart

• Veins- Blood vessels that carry blood to the heart

• Capillaries- microscopic blood vessels that connect arteries and veins

• Coronary arteries- blood vessels that carry blood to the heart muscle

• Blood pressure- force of blood- highest in arteries

• Hypertension- high blood pressure

Route of Blood• Superior/Inferior Vena Cava (Blue) • Right Atrium• Valve • Right Ventricle• valve• Pulmonary Artery (no oxygen/blue)• Lungs (capillaries) • Pulmonary Vein (oxygen/red)• Left Atrium• valve• Left Ventricle• valve• Arteries to Body (oxygen/red) Aorta• Capillaries