Dr. Nusrat

THE HEART ITSELF THE HEART ITSELF The human heart The human heart

consists of 4 consists of 4 chamberschambers

there are two types of there are two types of chambers: the atrium chambers: the atrium and the ventricleand the ventricle

there are two of each there are two of each type in the hearttype in the heart

the heart weighs a the heart weighs a mere 300 gramsmere 300 grams

Sizing It Up!Sizing It Up!

Make a fist and Make a fist and hold it over your hold it over your chest.chest.

Did you know Did you know your heart is about the size of your heart is about the size of your fist?your fist?

The heart is the The heart is the hardest working hardest working muscle in your body.muscle in your body.

Your heart pumps Your heart pumps over 2,000 gallons of over 2,000 gallons of blood throughout blood throughout your body each day!your body each day!

HEART VALVESHEART VALVES

The human heart contains valves which The human heart contains valves which prevent blood from flowing back into the prevent blood from flowing back into the heart chambers after it has contractedheart chambers after it has contracted

atrioventricular valves are found between atrioventricular valves are found between the atrium and ventricle of each side of the atrium and ventricle of each side of the heart the heart

semilunar valves are found in the arteries semilunar valves are found in the arteries leaving the heart to prevent blood from leaving the heart to prevent blood from flowing back into the ventriclesflowing back into the ventricles

HEART AT WORKHEART AT WORK

Each minute of the Each minute of the day the heart day the heart pumps 5 litres of pumps 5 litres of bloodblood

each time the heart each time the heart beats it sends beats it sends deoxygenated deoxygenated blood to the lungs blood to the lungs and oxygenated and oxygenated blood to the bodyblood to the body

Calculating Beats Per Calculating Beats Per MinuteMinute

44Fill in the

number of beats you feel in 15

seconds.

Fill in the number of beats

you feel in 15 seconds.

This number tells you how many times your

heart beats in one minute.

This number tells you how many times your

heart beats in one minute.

Cardiovascular disease is the number one killer.

Heart disease is women’s No. 1 killerStroke is women’s No. 3 killer

• Avoid tobacco• Cut back on saturated fat and cholesterol• Maintain a healthy weight• Modify dietary habits• Exercise regularly• Control diabetes• Control blood pressure

Risks You Can Control

Heart Disease- The Silent Killer

Causes an increase in blood pressure

Choose Your Fitness Choose Your Fitness ActivitiesActivities

Choose 3 fitness activities that can be done at your desk.