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Learning Objectives:

Define what is cardiovascular system and

its components.

Identify the parts and functions of thecardiovascular system.

Demonstrate briefly the anatomy and

physiology of the heart.

A1

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Slide 2

A1 Arvin, 9/16/2009

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CARDIOVASCULAR

SYSYTEM

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The cardiovascular system carriesoxygen and nutrients to all of the cells in thebody. It also picks up carbon dioxide and other

waste products that the body produces so that

they can be disposed of.

The main components of this system are

1. the heart,

2. blood vessels, and

3. blood.

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HEART

The human heart is a hollow, muscular organ that

weighs between 7 and 15 ounces and is a littlelarger than the size of your fist.

Its job is to pump blood through a network of

blood vessels. These vessels form a loop, whichstarts at the heart, goes out through your body, and

then ends back at the heart

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Heart Chambers:

Right Left

Right Atrium receivesdeoxygenated blood returning fromthe superior vena cava and inferior

vena cava.

Right Ventricle distributes deoxygenated blood to

the lung through the pulmonary

artery

Left Atrium - receivesoxygenated blood from thepulmonary circulation through the

pulmonary veins

Left Ventricle distributesoxygenated blood to the remainder ofthe body through the aorta

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Heart Chambers

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Heart Valves:

1.ATRIO

VENTRICU

LAR

VA

LVE

o Tricuspid valve - regulates blood flow between the

right atrium and right ventricle.

o Bicuspid /Mitral Valve - lets oxygen-rich blood

from your lungs pass from the left atrium into the

left ventricle.

2. SEMILUNAR VALVE

o Pulmonic Valve - controls blood flow from the right

ventricle into the pulmonary arteries, which carry

blood to your lungs to pick up oxygen.

o Aortic Valve - opens the way for oxygen-rich blood

to pass from the left ventricle into the aorta, where it

is delivered to the rest of your body.

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4 kinds of valves:

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Arteries and Veins

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BLOOD

The last main component of the cardiovascularsystem is blood.

Blood flows throughout your entire body,

carrying oxygen and nutrients to all of your

cells and taking away the waste products thatthey produce.

Blood is a fluid that carries several different

kinds of cells.

Three types : red blood cells,

white blood cells, and

special cell fragments called platelets.

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Heart Anatomy

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Upper Extremities / Lower Extremities

Superior Vena Cava Inferior Vena Cava

Right Atrium

Tricuspid Valve

Right Ventricle

Pulmonary Valve

Pulmonary Artery

LUNGS

Pulmonary Vein

Left Atrium

Mitral Valve

Left Ventricle

Aortic Valve

Aorta

Different parts of the Body

DIAGRAM

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THANK YOU!