Heart Powerpoint Presentation

2. New B.Ed College Nellimoodu
Name : Aneeja.S.Das
Subject : Natural Science
Candidate code : 181/13376002

3. The Cardiovascular System
Structure & Function

4. Organs of the Cardiovascular System
 Heart
 Blood vessels
 Arteries
 Arterioles
 Capillaries
Veins
 Venules

5. The Heart
 Muscular organ the size of
a fist
 Four chambers – L/R
Ventricles L/R Atria
 Endocardium- lines the
heart chambers
 Myocardium- muscle layer
 Pericardium- membranous
outer covering

6. Atria
 Right Atrium (RA)-
right upper chamber-receives
blood from
body- deoxygenated
blood
 Left atrium (LA)- left
upper heart.- receives
oxygenated blood from
lungs and sends it to
the left ventricle

7. Ventricles
 Right ventricle- (RV)-
right lower chamber-receives
blood from right
atrium and sends it to the
lungs through pulmonary
artery
 Left Ventricle (LV)-
lower left chamber-receives
blood from left
atrium and sends it
through the aorta to the
body.

8.  Aorta: The main trunk of
the systemic arteries,
carrying blood from the
left side of the heart to the
arteries of all limbs and
organs.
 Pulmonary Artery carries
blood to lungs
Right
Atrium
Right
Ventricle
Left
Atrium
Left
Ventricle
Aorta
pulmonary artery

9.  Pulmonary valve
controls blood
movement from right
ventricle into pulmonary
artery
 The aortic valve
controls blood flow from
the left ventricle to the
aorta
Pulmonary
valve
Right
Atrium
Right
Ventricle
Left
Atrium
Left
Ventricle
Tricuspid
Valve
Mitral Valve
Aortic valve

10.  Tricuspid valve
controls blood flow
between the right
atrium and ventricle
 Mitral valve controls
blood movement
between the left
atrium and ventricle
Right
Atrium
Right
Ventricle
Left
Atrium
Left
Ventricle
Tricuspid
Valve
Mitral Valve

11. Arteries
 Arteries- tubes that
carry blood away from
the heart.
 Muscular elastic walls
 Form arterioles which
form capillaries
 Carry blood and
oxygen to the body
cells

12. Veins
 Veins- tubes that carry
blood toward the heart
 Thinner muscular
walls
 Carry blood back to
heart
 Cuplike valves to help
move blood

13. Capillaries
 Capillaries- tubes that
connect arteries and
veins
Walls only one cell
thick
 Site for exchange of
nutrients and oxygen
from blood cells and
carbon dioxide and
wastes to the blood

15. CONCLUSION
 The chambers on the right side contain impure blood
& those on the left side contain pure blood.
 The right & left atria get filled with blood they
contract together & the blood goes to the ventricles.
 The ventricular contraction blood from the left
ventricle enters the aorta & the blood from the right
ventricle enters the pulmonary artery