Download Circulatory System

The Circulatory
System
The circulatory
system consists of
the blood vessels, the
heart and blood.
Its main function is
to transport
substances, including
nutrients, wastes and
dissolved gases,
around the body.
Vessel
Function
Structure
Artery
Transports
blood AWAY
from the
heart
High
pressure;
thick elastic
walls
Transports
blood
TOWARDS the
heart
Lower
pressure;
thinner walls;
contain valves
Vein
Material
exchange
Capillary between
blood and
body
Very thin
walls; narrow
(1 blood cell
thick)
Pulmonary Circulation:
blood flow between the
heart and lungs
Systemic Circulation:
blood flow between heart
and rest of body
Cardiac Circulation:
blood flow within the heart
Systemic
Circulation
Pulmonary
Circulation
Capillaries
Veins
Arteries
Arteries
Veins
Systemic
Circulation
Capillaries
• Acts as a pump to
transport and regulate
the flow of blood
through blood vessels
• Mainly muscle tissue
• 4 chambers
• 2 arteries
• 2 veins
• Deoxygenated blood
• Oxygenated blood
Right Side
Superior
vena cava
Inferior
vena cava
Left Side
Superior
vena cava
Right atrium
Inferior
vena cava
Superior
vena cava
Right atrium
Right ventricle
Inferior
vena cava
Superior
vena cava
Pulmonary
artery
to right lung
Right atrium
Right ventricle
Inferior
vena cava
Pulmonary
artery
to left lung
Superior
vena cava
Pulmonary
artery
Pulmonary
artery
from left lung
from right lung
Pulmonary vein
Pulmonary vein
from left lung
from right lung
Right atrium
Right ventricle
Inferior
vena cava
Superior
vena cava
Pulmonary
artery
Pulmonary
artery
Pulmonary vein
Pulmonary vein
Left atrium
Right atrium
Right ventricle
Inferior
vena cava
Superior
vena cava
Pulmonary
artery
Pulmonary
artery
Pulmonary vein
Pulmonary vein
Left atrium
Right atrium
Right ventricle
Inferior
vena cava
Left ventricle
Aorta
Superior
vena cava
Pulmonary
artery
Pulmonary
artery
Pulmonary vein
Pulmonary vein
Left atrium
Right atrium
Right ventricle
Inferior
vena cava
Left ventricle
Descending
aorta
• Deoxygenated
blood – right atrium
and right ventricle
• Oxygenated blood
– left atrium and
left ventricle
• 2 arteries –
pulmonary and
aorta
• 2 veins –
pulmonary and
vena cava
https://www.youtube.com/watch?v=oE8tGkP5_tc
Type
Structure
Red blood • No nucleus
cells
• Disk-shaped, flexible
• Contains
hemoglobin
White
• Have a nucleus
blood cells •Short life span
Platelets Made of cell
fragments
Plasma
Protein-rich liquid
Function
Transports
oxygen
%
Makeup
45
Fights
infections
<1
Blood clotting
<1
Carries blood
cells
55
Red and White Blood Cells