
Cardiovascular System Quiz

Quiz
•
Other
•
12th Grade
•
Medium
Aminath Shiuna
Used 5+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary function of the cardiovascular system?
Digestion of nutrients
Storage of blood
Production of hormones
Transport of respiratory gasses
Answer explanation
The primary function of the cardiovascular system is the transport of respiratory gases, such as oxygen and carbon dioxide, throughout the body, which is essential for cellular respiration and overall metabolic processes.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which type of blood vessel carries blood away from the heart?
Venules
Veins
Capillaries
Arteries
Answer explanation
Arteries are the blood vessels that carry blood away from the heart to the rest of the body. In contrast, veins carry blood back to the heart, and capillaries are small vessels where gas exchange occurs.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of capillaries in the circulatory system?
Transport blood to the heart
Exchange materials between blood and tissues
Store blood
Pump blood
Answer explanation
Capillaries are tiny blood vessels that facilitate the exchange of oxygen, nutrients, and waste products between blood and tissues, making them essential for cellular function.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which part of the heart is responsible for pumping blood to the lungs?
Right atrium
Left ventricle
Right ventricle
Left atrium
Answer explanation
The right ventricle is responsible for pumping deoxygenated blood to the lungs for oxygenation. The right atrium receives blood from the body, but it is the right ventricle that sends it to the lungs.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the function of the valves in the heart?
To regulate heart rate
To prevent backflow of blood
To supply oxygen to the heart
To increase blood pressure
Answer explanation
The valves in the heart function to prevent backflow of blood, ensuring it flows in the correct direction through the heart chambers and into the arteries.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a characteristic of arteries?
Thinner walls than veins
Carry deoxygenated blood
Have valves
Thicker walls than veins
Answer explanation
Arteries have thicker walls than veins to withstand higher pressure from the blood pumped by the heart. This characteristic distinguishes them from veins, which have thinner walls and often contain valves.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary role of the sinoatrial (SA) node?
To filter blood
To pump blood
To initiate electrical impulses
To regulate blood pressure
Answer explanation
The sinoatrial (SA) node is known as the heart's natural pacemaker. Its primary role is to initiate electrical impulses that regulate the heartbeat, making 'To initiate electrical impulses' the correct answer.
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