3. OBJECTIVES
ABOUT THE HEART
SPECIMEN OF THE HEART
HEART CHAMPERS
LOCATION OF THE HEART
PARTS OF THE HEART
HEART FUNCTIONING
BLOOD CIRCULATION
THE LIVING PUMP
HEART BEATS
PREVENTION OF HEART DISEASE
LAYERS OF THE HEART
More details
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4. The human heart is a conical muscular organ situated in
the middle mediastinum in between the two lungs.
The base of the heart lies upwards while the apex lies
downwards and titled towards the left.
The heart is covered by a double walled membranous
sac known as the PERICARDIUM.
Pericardial fluid, present inside the membrane, protects
the heart from shock and lubricates its movements.
Heart is very important organ of human body.
It is made of muscle and has four chambers, Two in each
side.
Upper chambers are atriums.
Lower chambers are ventricles.
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6. HEART CHAMPERS
LOWER
UPPER
CHAMBERS CHAMBERS
Left atria. Left ventricle.
Right atria. Right ventricle.
It has smaller It has larger and
and less more muscular.
muscular.
Left atrium
Right atrium
Left ventricle
Right ventricle
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7. LOCATION OF THE
LOCATION OF THE
HEART
HEART
The human heart is a
conical muscular organ
situated in the middle
mediastinum in between the
two lungs.
HEART PUMPS
BLOOD TO
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WHOLE BODY
9. THE WORK OF THE HEART
Circulating blood.
The steady pumping of the heart
supports life by moving blood through the
body. As it flows, blood delivers food and
oxygen to all the body's cells and carries away
wastes. Blood returns to the heart carrying a
waste gas called carbon dioxide that cells
produce as they use oxygen to obtain energy
from food.
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12. HEART BEATS
Regulating the heart rate. The heart's cycle of activity has two stages, systole and
diastole. Systole (pronounced SIHS tuh lee) occurs when the ventricles contract.
Diastole (pronounced dy AS tuh lee) is the stage when the ventricles relax and the
atria contract. One complete cycle of contraction and relaxation--called a cardiac
cycle--makes up one heartbeat.
Cardiac output = stroke volume x
heart rate (number of ventricular
contractions/min)
= 70 ml/stroke x 72 strokes/min
= 5040 ml/min (5.04 litres/min)
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13. Avoid Alcohol.
Reduce Over Weight.
Regular Exercise.
Less Tensions And Emotions
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