Science - Circulatory System

i would let choso hit it ngl

Circulatory System

• delivers oxygen and nutrients to cells and takes away wastes.

Heart

• pumps oxygenated and deoxygenated blood on different sides

• pumps the blood throughout the body

Cardiovascular System

• another name for the circulatory system

Oxygenated Blood

• travels away from the heart to the different arteries of the body

Deoxygenated Blood

• travels back to the heart to be resupplied with oxygen

four compartments

how many chambers does the heart contain?

Atrium

two upper chambers

Ventricles

two lower chambers

To move blood throughout your body, control the rhythm and speed of your heart rate, and maintain blood pressure

What is the function of the heart?

Heart Walls

• are muscles that contract and relax to send blood throughout your body

Right Atrium

• two large veins deliver oxygen-poor blood to your right atrium

• receives deoxygenated blood from the systemic circulation.

Superior Vena Cava

• carries blood from your upper body

• it carries blood from the head, neck, arms, and chest.

Inferior Vena Cava

• brings blood from your lower body

• carries blood from the legs and feet

• located at the posterior abdominal wall on the right side of the aorta

• function: carry the venous blood from the lower limbs and abdominopelvic region to the heart

Right Ventricle

• the lower right chamber pumps the oxygen-poor blood to your lungs through the pulmonary artery.

• the most anterior of the four heart chambers.

• receives deoxygenated blood from the right atrium and pumps it into the pulmonary circulation

Left Atrium

• after the lungs fill your blood with oxygen, the pulmonary veins carry the blood to the left atrium.

  • this upper chamber pumps the blood to your left ventricle

Left Ventricle

• it pumps oxygen-rich blood to the rest of your body

  • slightly larger than the right

Tricuspid Valve

• door between your right atrium and right ventricle

• these valves flap open to let blood flow from the upper right chamber (right atrium) to the lower right chamber (right ventricle)

Mitral Valve

• door between your left atrium and left ventricle

• keeps your blood moving in the right direction

Aortic Valve

• opens when blood flows out of your left ventricle to your aorta (artery that carries oxygen-rich blood to your body)

• separates the lower left heart chamber (left ventricle) and the body’s main artery (aorta)

Pulmonary Valve

• opens when blood flows from your right ventricle to your pulmonary arteries (the only arteries that carries oxygen-poor blood to your lungs)

• between the lower right heart chamber (right ventricle) and the artery that delivers blood to the lungs (pulmonary artery)

sits slightly behind and to the left of the sternum

Where is your heart located?

Aorta

• the largest artery in the body. It carries blood away from your heart to the rest of your body

Vena Cava

• largest vein

Pulmonary Artery

• carries deoxygenated blood from the right ventricle to the lungs

Mitral, Aortic, Tricuspid, and Pulmonary

What are the 4 major valves in the Heart?

Blood Vessel

• carries the blood throughout the body

Arteries, Veins, and Capillaries

What are the 3 types of blood vessels?

Arteries

• carry oxygenated blood away from the heart to the cells, tissues, and organs of the body

Veins

• carries deoxygenated blood to the heart

Capillaries

• the smallest blood vessels in the body

Blood

• carries the materials throughout the body

Leukemia

• the disease known to be the cancer of blood