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
14.
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