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WorksheetsThe Circulatory System
Total questions: 35
Worksheet time: 26mins
Carries oxygen and food to the cells of the body and carries carbon dioxide and other wastes away from the cells.
Lymphatic System
Cardiovascular System
Digestive System
Circulatory System
Epicardium (Function)
Covers the heart and attaches to the pericardium
Contracts to pump blood into the arteries
Lines the interior chambers and valves
Epicardium (Location)
Inner layer of the heart
Middle layer of the heart
Outer layer of the heart
SATURN 🪐
Epicardium (Description)
Thick layer of cardiac muscle
Thin, serous (watery) membrane that is continuous with the lining of the pericardium
Thin layer of ephithelial cells that is continuous with the lining of the blood vessels
Middle layer of the heart
(a)
Inner layer of the heart
(a)
Thick layer of cardiac muscle
(a)
Thin layer of ephithelial cells that is continuous with the lining of the blood vessels
(a)
Myocardium (Function)
Lines the interior chambers and valves
Covers the heart and attaches to the pericardium
Contracts to pump blood into the arteries
Endocardium (Function)
Lines the interior chambers and valves
Covers the heart and attaches to the pericardium
Contracts to pump blood into the arteries
Upper chambers; receiving
Atria
Ventricles
Lower chambers; delivering
Atria
Ventricles
Receives deoxygenated blood from the body
(a)
Receives blood from the right atrium and pumps it into the pulmonary artery
(a)
Receives oxygenated blood from the lungs via to pulmonary veins and pumps it into the left ventricle
(a)
Receives blood from the left atrium and pumps it into the aorta.
(a)
Atrioventricular
Entrance to the ventricles
Exit the ventricles
Semilunar valves
Entrance to the ventricles
Exit the ventricles
Right AV valve / tricuspid valve
Closes when the right ventricle contracts and prevents blood from flowing back into the right atrium
Closes when the left ventricle contracts and prevents blood from flowing back into the left atrium
Closes when the right ventricle relaxes and prevents blood from flowing back into the right ventricle
Closes when the left ventricle relaxes and prevents blood from flowing back into the left ventricle
Left AV valve / bicuspid
Closes when the right ventricle contracts and prevents blood from flowing back into the right atrium
Closes when the left ventricle contracts and prevents blood from flowing back into the left atrium
Closes when the right ventricle relaxes and prevents blood from flowing back into the right ventricle
Closes when the left ventricle relaxes and prevents blood from flowing back into the left ventricle
Right semilunar valve / pulmonic valve
Closes when the right ventricle contracts and prevents blood from flowing back into the right atrium
Closes when the left ventricle contracts and prevents blood from flowing back into the left atrium
Closes when the right ventricle relaxes and prevents blood from flowing back into the right ventricle
Closes when the left ventricle relaxes and prevents blood from flowing back into the left ventricle
Left semilunar valve / aortic valve
Closes when the right ventricle contracts and prevents blood from flowing back into the right atrium
Closes when the left ventricle contracts and prevents blood from flowing back into the left atrium
Closes when the right ventricle relaxes and prevents blood from flowing back into the right ventricle
Closes when the left ventricle relaxes and prevents blood from flowing back into the left ventricle
Partition that separates the right and left atria
Interventricular septum
Interatrial septum
partition that separates the right and left ventricles
(a)
One complete contraction and subsequent relaxation of the heart. The contracting phase of the cardiac cycle is called _______, and the relaxing phase is called ______.
systole, diastole
diastole, systole
A graphic record of the heart’s electrical activity during the cardiac cycle produced by an electrograph.
(a)
represents the activity of the atria and is usually the first wave seen.
(a)
represents the activity of the ventricles.
(a)
The normal adult heart rate averages __ beats per minute.
80
70
72
75
an irregularity in the heart’s rate, rhythm, or beat
Tachycardia
Extrasystole
Bradycardia
Arrhythmia
a slow rate, less than 60 beats per minute
Tachycardia
Extrasystole
Bradycardia
Arrhythmia
extra beats before the normal beat
Tachycardia
Extrasystole
Bradycardia
Arrhythmia
a fast rate, over 100 beats per minute
Tachycardia
Extrasystole
Bradycardia
Arrhythmia
Palpable rhythmic throbbing caused by the alternating expansion and contraction of an artery as a wave of blood passes through it.
(a)
Force (pressure) or tension exerted by the blood on the walls of blood vessels.
(a)
