Cardiovascular System notes

Cardi/o

Pertaining to heart

Vascular

Veins and arteries

Purpose of cardiovascular?

Transport blood to and from every living cell in the body 

What do our cells need in order to function

What does blood deliver to each cell?

 Oxygen, nutrients, water, hormones, white blood cells

What does blood remove from each cell?

Waste(ex. CO2)

What is the heart?

A pump made of cardiac muscles

pumps blood to the body cells and lungs

Beats 72 beats per minute, made of 4 chambers

What are the 4 chambers?

L and R atrium (top), L and R ventricle (Bottom)

What are the 3 layers of the hear

Epicardium- top layer

Myocardium- middle (muscular) layer

Endocardium- sits on inside of ventricles

What is Blood?

Made of cell and plasma

Function: transport RBCS and plasma, fight infections(WBCs), and clot blood (platelets)

3 maint typed of blood vessels

Arteries: carry oxygenated blood away from the heart to the body cells

Capillaries Tiny blood vessels that connect arteries and veins at the body cells

Veins: carry deoxygenated blood back to the heart from the body cells

Superior Vena Cava

Inferior Vena Cava

Delivers deoxygenated blood from the upper body to the right atrium (veins)

Delivers deoxygenated blood from lower body to

Right atrium

Pumps de-enated blood to right ventricle

Tricuspid Valve

Opens pass blood from right atrium to right ventricle

Right ventricle

Pumps de-genated blood to the lungs

Pulmonary Valve

Opens to pas blood from right ventricle to pulmonary arteries (Pulmon-: lungs)

Pulmonary Arteries

Carry from right ventricle into the lungs

Aveoli

Air-sacs in lungs

Pulmonary veins

Carry oxygenated blood from lungs to LEFT atrium

Left Atrium

Pumps oxygenated blood to left ventricle

Bicuspid Valve

Opens to pass blood from Left atrium to LEFT ventricle

Left ventricle

Thickest heart chamber

Pumps oxygenated blood to entire body

Aortic Valve

Opens to pass blood from ventricle to aorta

What is the Aorta?

Largest artery

Carries oxygenated blood away from left ventricle to the body

Septum

Separate right and left sides of the heart to keep oxygenated and de-genated blood separate