circulatory system
DESCRIPTION
TRANSCRIPT
CIRCULATORY SYSTEMCIRCULATORY SYSTEM
Prepared by:MARICARR D. ALEGREPrepared by:MARICARR D. ALEGRE
Circulatory System• Also known as the body’s transport system
• Its main function are to deliver food and oxygen to the cells and to pick up the cells waste material and carbon dioxide
• It is consist of the • Blood• Blood vessels• Heart
The HEARTThe HEART
• A muscular pump located between the lungs and above your diaphragm
• It can pump up to 10,000 liters of blood daily
• It can contract and relax 70 times a minute
• In average persons life the heart can beat 2.5 billion times
Parts and Functions of the HeartParts and Functions of the Heart
PERICARDIUM• Protective membrane that
surrounds the heart
• Its just like the skin of the heart
Chambers of the HeartChambers of the Heart
CHAMBERS OF THE HEART
• 1. ATRIA• The collecting chambers of the heart
(a)Right atrium
(b)Left atrium
2. VENTRICLE
pumping chamber of the heart
(a) right ventricle
(b) left ventricle
ATRIUM
1.RIGHT ATRIUM- collects blue unoxygenated
blood from the body
2. LEFT ATRIUM- collects oxygenated blood from
the lungs
VENTRICLE1. RIGHT VENTRICLE
- pumps unoxygenated blood to the lungs for oxygenation
2. LEFT VENTRICLE
- pumps oxygenated blood to the different parts of the body
MAJOR BLOOD VESSELS ON THE HEART
1. SUPERIOR VENA CAVA- located at the upper part of the heart
which serves as the passage way of unoxygenated blood from your head and arms
2. INFERIOR VENA CAVA- located on the lower part of the heart
which is the pathway of unoxygenated blood from the lower part of the body
MAJOR BLOOD VESSELS ON THE HEART
3. PULMONARY ARTERY- carries deoxygenated blood from the
right ventricle to the lungs
4. PULMONARY VEIN- brings back oxygenated blood from the
lungs to your heart
5. AORTA- the largest artery in your body
VALVES• Prevents the backflow of blood
(a)TRICUSPID VALVE
- between the right atrium and right ventricle
(b) BICUSPID VALVE
-between the left atrium and left ventricle
VALVES
( C ) PULMONARY SEMILUNAR VALVE
- between the right ventricle and the pulmonary artery
( d ) AORTIC SEMILUNAR VALVE
- between the left atrium and aorta
SEPTUM
• muscular wall that divides the heart into left and right
• Prevents the crossing of blood
THE BLOODTHE BLOOD
• It circulates throughout the body, feeding, supplying and even defending the cells or tissues that make up your body
• Your blood consist of the liquid part, plasma, and the solid components, blood cells
BLOOD PLASMA• It comprises 50 to 60 percent of your
blood• The clear yellowish liquid part is
called the serum • It transports your blood cells
particularly the red blood cells• It also contains an antibodies which
protect your body from infection
BLOOD CELLSBLOOD CELLS
RED BLOOD CELLS• Also called erythrocytes• Very small, round disc shape cell
which are thinned out at the center
• It is formed in the bone marrow• It contains hemoglobin which
gives it the red color
RED BLOOD CELLS
• It is the one responsible for carrying the oxygen to the different parts of the body and picking up the carbon dioxide
• It also contains an antigens which determines the blood type
WHITE BLOOD CELLS
• Also called leucocytes• They protect the body
against foreign invading substances like bacteria
WHITE BLOOD CELLS
2 TYPES
1. PHAGOCYTES – engulf foreign substances
2. LYMPHOCYTES – produce antibodies to attack your body enemies
PLATELETS• Also called thrombocytes• It helps to plug leaks in
broken capillary walls• For tissue repair
BLOOD VESSELSBLOOD VESSELS
1. ARTERY – carry the blood away from the heart
2. VEINS - carry the blood towards the heart
3. CAPILLARIES - conjunction between them
- the smallest blood vessel
BLOOD TYPESBLOOD TYPES
Blood Recipie
nt
Type A Type B Type AB
Type O
Type A ( has anti-B)
No clumping clumping clumping No clumping
Type B ( has anti-A)
clumping No clumping clumping No clumping
Type AB (neither A
nor B)
No clumping No clumping No clumping No clumping
Type O (both anti A and B)
clumping clumping clumping No clumping