it is the pump that circulates blood throughout the body. more than 50% americans carry genes that...
TRANSCRIPT
Heart
It is the pump thatcirculates blood throughout the body.More than 50% Americanscarry genes that cause increased heart attack orstroke risk.Heart disease is the leading cause of death for women.
2.01 Remember the structures of the circulatory system 1
Heart
2.01 Remember the structures of the circulatory system 2
The heart is a double pump.
Chambers-4Valves-4Double pump because it pumps blood in and out of both sides of the heart.
Electrical Conduction system that causes it to beat
Layers of the heart
2.01 Remember the structures of the circulatory system 3
Myocardium
Endocardium
Pericardium
Septum
Chambers of the heart
2.01 Remember the structures of the circulatory system 4
Right atrium
Right ventricle
Left atrium
Left ventricle
Heart
2.01 Remember the structures of the circulatory system 5
Right atrium
Tricuspid valve Bicuspid (mitral) valve
Left atrium
Pulmonary semilunar valve
Aortic semilunar valve
ApexSeptum
Right ventricle Left ventricle
Heart
2.01 Remember the structures of the circulatory system 6
Superior vena cava
Inferior vena cava
Right atrium
Tricuspid valve Bicuspid (mitral) valve
Left atrium
Aorta
Pulmonary artery
Pulmonary vein
Pulmonary semilunar valve
Aortic semilunar valve
ApexSeptum
Right ventricle Left ventricle
Flow of blood through the body
Right side Superior vena
cavaInferior vena cavaRight atriumTricuspid valveRight VentriclePulmonary valvePulmonary artery
Lungs CO2 and O2 exchange
Left SidePulmonary veinLeft atriumBicuspid valveLeft ventricleAortic valveAortaBody
2.01 Remember the structures of the circulatory system 7
Conduction system of heart beats
2.01 Remember the structures of the circulatory system 8
Refer to your textbook to identify the structures of the heart’s conduction system in the correct sequence for the
heart to beat.
Structures of the circulatory system
ARTERIES
Arterial blood Oxygen rich Bright red,
spurts
2.01 Remember the structures of the circulatory system 9
Vessels of the circulatory system
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
Structures of the circulatory system
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 direction-
toward the heart. This prevents backflow of blood toward
capillaries.
2.01 Remember the structures of the circulatory system 11
Vessels of the circulatory system
2.01 Remember the structures of the circulatory system 12
See handoutList major artieries and veins from both Cardiopulmon-ary and Systemic Circulation
Then take Open Book Quiz
Structures of the circulatory system
Capillaries The smallest
blood vessels -1 cell thick
Connect arterioles to venules
Site of exchange
Of CO2 and O2 of all cells2.01 Remember the structures of
the circulatory system 13
Flow of blood through the body
Right side Superior vena
cavaInferior vena cavaRight atriumTricuspid valveRight VentriclePulmonary valvePulmonary artery
Lungs CO2 and O2 exchange
Left SidePulmonary veinLeft atriumBicuspid valveLeft ventricleAortic valveAortaArteriesArteriolesCapillariesCells CO2 and O2
exchangeVenulesVeins
2.01 Remember the structures of the circulatory system 14
Pulse sites Alternating expansion and contraction of
an artery as blood flows through it.
2.01 Remember the structures of the circulatory system 15
Common Pulse Sites
2.01 Remember the structures of the circulatory system 16