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WorksheetsCirculatory System
Total questions: 21
Worksheet time: 13mins
What is another name for the circulatory system?
Respiratory system
Cardiovascular system
Digestive system
Nervous system
The circulatory system consists of the heart, blood vessels, and ______.
blood
muscles
What is the smooth layer of cells that lines the inside of the heart and allows for smooth flow of blood?
Endocardium
Pericardium
Which layer of the heart is the muscular middle layer and is the thickest?
B) Myocardium
A) Endocardium
The double-layered membrane that covers the outside of the heart is called the ________.
Endocardium.
Pericardium.
Which valve is located between the right atrium and right ventricle?
Mitral valve
Tricuspid valve
Identify the part of the heart l- #3
Right Atrium
Left Ventricle
Identify the valve labeled - #11
Tricuspid valve
Mitral valve
Which chamber of the heart is labeled -#10
Left Ventricle
Left Atrium
The role of the Sinoatrial (SA) node in the heart's conductive pathway is to:
initiate the heartbeat and regulate the heart rate
receive signals from the brain to control heart rate
The function of the Sinoatrial (SA) node in the heart's electrical system is to:
filter impurities from the blood
initiate the heartbeat and regulate the heart rate
What are arrhythmias?
Irregular heartbeats
Normal heart rhythm
Which devices are used to diagnose arrhythmias?
Blood Pressure Monitor
Electrocardiogram (ECG)
Which part of the circulatory system connects arteries and veins?
What is the primary function of arteries?
Filter blood
Carry blood away from the heart
Which is the largest artery in the body?
Aorta
Capillary
The smallest branches of arteries are called _______.
arterioles
veins
What is the primary function of veins?
Filter blood
Carry blood back to the heart
Name the two largest veins in the human body.
Jugular veins
Superior and inferior vena cava
What feature do most veins contain to prevent blood from flowing backwards?
Arteries
Valves
How many quarts of blood are there in the average adult?
4-6 quarts
10-12 quarts
