It is the pump that
circulates blood
throughout the body.
More than 50% Americans
carry genes that cause
increased heart attack or
stroke risk.
Heart disease is the leading
cause of death for women.
2.01 Remember the structures of the
circulatory system
1
The heart is a
double pump.
Chambers-4
Valves-4
Double pump because it pumps
blood in and out of both sides of the
heart.
Electrical Conduction system that
causes it to beat
2.01 Remember the structures of the
circulatory system
2
Pericardium
Myocardium
Endocardium
Septum
2.01 Remember the structures of the
circulatory system
3
Left atrium
Right atrium
Right ventricle
Left ventricle
2.01 Remember the structures of the
circulatory system
4
Aortic semilunar valve
Right atrium
Left atrium
Tricuspid valve
Bicuspid (mitral) valve
Pulmonary semilunar valve
Right ventricle
Left ventricle
Septum
Apex
2.01 Remember the structures of the
circulatory system
5
Aorta
Superior vena cava
Pulmonary artery
Aortic semilunar valve
Pulmonary vein
Right atrium
Left atrium
Tricuspid valve
Bicuspid (mitral) valve
Inferior vena cava
Pulmonary semilunar valve
Right ventricle
Left ventricle
Septum
Apex
2.01 Remember the structures of the
circulatory system
6
Right side
Superior vena cava
Inferior vena cava
Right atrium
Tricuspid valve
Right Ventricle
Pulmonary valve
Pulmonary artery
Left Side
Pulmonary vein
Left atrium
Bicuspid valve
Left ventricle
Aortic valve
Aorta
Body
Lungs CO2 and O2
exchange
2.01 Remember the structures of the
circulatory system
7
Refer to your textbook to
identify the structures of the
heart’s conduction system in
the correct sequence for the
heart to beat.
2.01 Remember the structures of the
circulatory system
8


ARTERIES
Arterial blood
 Oxygen rich
 Bright red,
spurts
2.01 Remember the structures of the
circulatory system
9

ARTERIES
Carry oxygenated blood away from the heart to the
capillaries
 Elastic, muscular and thick-walled
 Transport blood under very high pressure


Arteries > arterioles > capillaries
2.01 Remember the structures of the
circulatory system
10
VEINS
 Carry deoxygentated blood
away from the capillaries to
the heart.
 Blood is pumped thru the
heart under low pressure
and walls are thin thus veins
can collapse easily.
 Have valves that allow blood
to only flow in one directiontoward the heart. This
prevents backflow of blood
toward capillaries.

2.01 Remember the structures of the
circulatory system
11
See handout
List major
artieries and
veins from
both
Cardiopulmo
n-ary and
Systemic
Circulation
Then take
Open Book
Quiz
2.01 Remember the structures of the
circulatory system
12
 Capillaries
 The smallest blood
vessels -1 cell thick
 Connect
arterioles to
venules
 Site of exchange
Of CO2 and O2 of
all cells
2.01 Remember the structures of the
circulatory system
13
Right side
Superior vena cava
Inferior vena cava
Right atrium
Tricuspid valve
Right Ventricle
Pulmonary valve
Pulmonary artery
Lungs CO2 and O2
exchange
2.01 Remember the structures of the
circulatory system
Left Side
Pulmonary vein
Left atrium
Bicuspid valve
Left ventricle
Aortic valve
Aorta
Arteries
Arterioles
Capillaries
Cells CO2 and O2
exchange
Venules
Veins
14

Alternating expansion and contraction of an
artery as blood flows through it.
2.01 Remember the structures of the
circulatory system
15
2.01 Remember the structures of the
circulatory system
16