Download 3. cardiovascular system

RIGHT
ATRIUM
RIGHT VENTRICLE
RIGHT
ATRIUM
RIGHT VENTRICLE
LEFT VENTRICLE
RIGHT
ATRIUM
RIGHT VENTRICLE
LEFT VENTRICLE
AORTA
SUPERIOR
VENA CAVA
PULMONARY
ARTERY
PULMONARY
VEIN
RIGHT
ATRIUM
LEFT ATRIUM
INFERIOR
VENA CAVA
RIGHT VENTRICLE
HEART MUSCLE
LEFT VENTRICLE
The heart has a
number of heart
valves that control
the direction of
blood flow through
the heart.
The heart has a
number of heart
valves that control
the direction of
blood flow through
the heart.
1. Oxygenated blood arrives
from the lungs through the
pulmonary veins and enters
the left atrium.
1. Oxygenated blood arrives
from the lungs through the
pulmonary veins and enters
the left atrium.
2. Oxygenated blood passes
into the left ventricle.
1
1. Oxygenated blood arrives
from the lungs through the
pulmonary veins and enters
the left atrium.
1
2. Oxygenated blood passes
into the left ventricle.
3. A powerful contraction of
the heart muscle surrounding
the the left ventricle pumps
oxygenated blood out through
the aorta to the body.
2
3
1. Oxygenated blood arrives
from the lungs through the
pulmonary veins and enters
the left atrium.
1
2. Oxygenated blood passes
into the left ventricle.
3. A powerful contraction of
the heart muscle surrounding
the the left ventricle pumps
oxygenated blood out through
the aorta to the body.
2
3
4. Deoxygenated blood comes
back from the body and enters
the right atrium through the
vena cava
1
2
4
4. Deoxygenated blood comes
back from the body and enters
the right atrium through the
vena cava
3
1
5. Deoxygenated blood passes
into the right ventricle.
4
2
3
4
4. Deoxygenated blood comes
back from the body and enters
the right atrium through the
vena cava
1
5. Deoxygenated blood passes
into the right ventricle.
6. Deoxygenated blood
returns to the lungs via the
pulmonary arteries.
4
5
2
3
6
4
4. Deoxygenated blood comes
back from the body and enters
the right atrium through the
vena cava
5. Deoxygenated blood passes
into the right ventricle.
6. Deoxygenated blood
returns to the lungs via the
pulmonary arteries.
4
5
2
1
arteries
veins
Capillaries
Exchange between blood and cells
venules
arterioles
Adult males : 5-6 litres / Adult females : 4-5 litres.
RED BLOOD CELLS – contain haemoglobin which carries the oxygen
WHITE BLOOD CELLS – fight infection
PLATELETS – responsible for blood clotting.
1.
The function of the cardiovascular system is to :
A/ fight disease.
B/ clot the blood.
C/ maintain body temperature.
D/ maintain hydration levels.
E/ all of the above.
F/ none of the above.
2.
Blood from the left side of the heart is known as:
A/ atrial.
B/ venous.
C/ deoxygenated.
D/ oxygenated.
3.
When the heart contracts it pumps blood into the:
A/ arteries.
B/ veins.
C/ capillaries.
D/ arterioles.
4.
After leaving the heart the blood will take the following pathway:
A/ veins - venules - capillaries - arterioles - arteries.
B/ arterioles - arteries - capillaries - veins - venules.
C/ arteries - veins - capillaries - venules - arterioles.
D/ arteries - arterioles - capillaries - venules - veins.
5.
In which of the following does blood have the lowest concentration of oxygen ?
A/ coronary artery
B/ inferior vena cava
C/ pulmonary vein
D/ carotid artery
6. During a bout of exercise, if the heart rate is 150 bpm. and the stroke volume is 100
ml/min - the cardiac output is:
A/ 300 ml/min.
B/ 1500 ml/min.
C/ 15000 ml/min.
D/ 30000 ml/min.
7.
The blood cells responsible for blood clotting are the:
A/ plasma.
B/ platelets.
C/ red blood cells.
D/ white blood cells.
8.
The relaxation phase of the heart beat is known as the:
A/ sino-atrial phase.
B/ sinuses.
C/ systole.
D/ diastole.
9.
The resting systolic and diastolic blood pressures for a healthy person at rest are
A/ 200 and 100 mm Hg.
B/ 120 and 180 mm Hg
C/ 120 and 80 mm Hg.
D/ 80 and 120 mm Hg.