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THE HEART

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THE HEART

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-The heart is a pump. The heart's only job is

to pump blood, which contains oxygen andother nutrients, to all of

the organs and tissue in the body.

-The heart is made up of four different blood-filled areas, and each of these chamber is on

the top and one chamber is on the bottom.

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Left Atrium

The left atrium receives oxygenated blood from the lungsthrough the pulmonary vein.

Right AtriumThe right atrium receives de-oxygenated blood from the bodythrough the superior vena cava (head and upper body) andinferior vena cava (legs and lower torso).

Right VentricleThe right ventricle receives de-oxygenated blood as the rightatrium contracts.

Left VentricleThe left ventricle receives oxygenated blood as the left atriumcontracts.

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Mitral valve and Tricuspid valve

- They let blood flow from the atria to the

ventricles.

Aortic valve and Pulmonary valve

- In charge of controlling the flow as the bloodleaves the heart

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THE BLOOD CIRCUIT

Pulmonary circulation

- Is the portion of the cardiovascular system whichcarries oxygen-depleted blood away from the

heart, to the lungs and returns oxygenatedblood back to the heart.

Systemic circulation

- Is the portion of the cardiovascular system whichcarries oxygenated blood away from the heart,to the body, and returns deoxygenated bloodback to the heart.

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HEART RATE

Is determined by the pace at which the

(Sinoatrial Node) SA node initiates electrical

signals.

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MenAge

1825 2635 3645 4655 5665 65+

Athlete 4955 4954 5056 5057 5156 5055

Excell

ent5661 5561 5762 5863 5761 5661

Good 6265 6265 6366 6467 6267 6265

Above

Avera

ge

6669 6670 6770 6871 6871 6669

Avera

ge 7073 7174 7175 7276 7275 7073

Below

Avera

ge

7481 7581 7682 7783 7681 7479

Poor 82+ 82+ 83+ 84+ 82+ 80+

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WomenAge

1825 2435 3645 4655 5665 65+

Athlete 5460 5459 5459 5460 5459 5459

Excelle

nt6165 6064 6064 6165 6064 6064

Good 6669 6568 6569 6669 6568 6568

Above

Averag

e

7073 6972 7073 7073 6973 6972

Average

7478 7376 7478 7477 7477 7376

Below

Averag

e

7984 7782 7984 7883 7883 7784

Poor 85+ 83+ 85+ 84+ 84+ 85+

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BLOOD PRESSURE

Blood pressure (BP), sometimes referred to

as arterial blood pressure, is

the pressure exerted by

circulating blood upon the walls of bloodvessels, and is one of the principal vital

signs.

BP is always highest in the two main arteriesthat leave the hear.

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Systolic pressure

- Is the pressure of the blood when the ventriclescontract while;

Diastolic pressure- Is measured when the heart relaxes.

Normal Systolic pressure for male is 120mm Hg

while 110mm Hg for females.Normal Diastolic pressure for male is 80mmHgwhile females should have 70mmHg.

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KEEP YOUR HEART HAPPY

Remember that your heart is a muscle. If you want it to be strong,you need to exercise it. How do you do it? By being active in away that gets you huffing and puffing, like jumping rope, dancing,or playing basketball. Try to be active every day for at least 30minutes! An hour would be even better for your heart!

Eat a variety of healthy foods and avoid foods high in unhealthyfats, such as saturated fats and trans fats. Reading the labels onfoods can help you figure out if your favorite snacks contain theseunhealthy ingredients.

Try to eat at least five servings of fruits and vegetables each day.

Dont smoke. It can damage the heart and blood vessels.