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Heart Physiology 101 Trivia Quiz

The human heart is one of the largest, most powerful organs in your body. This quiz will test your overall knowledge of your heart and cardiovascular physiology. Have fun learning about your hardest working muscle!

A multiple-choice quiz by Dr.Duodenum. Estimated time: 4 mins.

Author
Dr.Duodenum

Time
4 mins

Type
Multiple Choice

Quiz #
228,589

Updated
Dec 03 21

# Qns
10

Difficulty
Average

Avg Score
7 / 10

Plays
10729

Awards
Top 20% Quiz

Last 3 plays: Guest 174 (8/10), Guest 51 (6/10), Guest 46 (8/10).

One at a Time - Single Page - Timed Game

Question 1 of 10

1. There are two systems in which blood travels in the cardiovascular system. Which of these are they? Hint

Pulmonary, Systemic

Pulmonary, Somatic

Vascular, Systemic

Gastrointestinal, Cranial

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Question 2 of 10

2. Blood flows through the heart in this order: right atrium, right ventricle, pulmonary circuit, left atrium, left ventricle...into what vessel is the blood pumped from the left ventricle? Hint

Inferior Vena Cava

Superior Vena Cava

Aorta

Carotid Arteries

NEXT>

Question 3 of 10

3. The valve between the right atrium and the right ventricle is called the _______ valve. Hint

Coronary

Mitral

Tricuspid

Pulmonary

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Question 4 of 10

4. In a blood pressure measurement reading 120/80, the number in the denominator is which reading? Hint

Diastolic pressure

Coronary pressure

Systolic pressure

Hemoglobin pressure

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Question 5 of 10

5. Which chamber receives the deoxygenated blood from the systemic system first? Hint

Left Atrium

Right atrium

Right Ventricle

Left Ventricle

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Question 6 of 10

6. What is the medical term for a severe constricting pain in the chest due to an insufficient blood supply to the heart? Hint

Stroke

Myocarditis

Angina pectoris

Hypertension

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Question 7 of 10

7. A small mass of specialized muscle on the back wall of the right atrium, also known as the pacemaker, is medically known as what? Hint

Atrioventricular node

Cardiopulmonary node

Bundle of His

Sinoatrial node

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Question 8 of 10

8. When you check the pulse of someone by placing two fingers on the side of their neck, you are feeling the blood being pumped through which vessel(s)? Hint

Carotid artery

Aorta

Internal jugular

Superior vena cava

NEXT>

Question 9 of 10

9. What percentage by volume of your blood is plasma? Hint

70%

55%

99%

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Question 10 of 10

10. The system of arteries that supply the heart with its own, separate supply of blood is called? Hint

Endocarterial arteries

Coronary arteries

Hepatic arteries

Ventricular arteries

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Most Recent Scores

Apr 22 2024 : Guest 174: 8/10
Apr 22 2024 : Guest 51: 6/10
Apr 20 2024 : Guest 46: 8/10
Apr 16 2024 : Guest 49: 8/10
Apr 14 2024 : Guest 108: 10/10
Apr 13 2024 : Guest 75: 3/10
Apr 12 2024 : Guest 76: 5/10
Apr 12 2024 : Guest 104: 6/10
Apr 12 2024 : Guest 104: 9/10

Score Distribution

Quiz Answer Key and Fun Facts

1. There are two systems in which blood travels in the cardiovascular system. Which of these are they?

Answer: Pulmonary, Systemic

The pulmonary system starts with dexoygenated blood coming out of the right ventricle. It is pumped up through the pulmonary artery and circulates around your lungs where it is oxygenated by the air you breathe in. It then returns to your left atrium to be pumped to the rest of your body.

2. Blood flows through the heart in this order: right atrium, right ventricle, pulmonary circuit, left atrium, left ventricle...into what vessel is the blood pumped from the left ventricle?

Answer: Aorta

The aortic arch is located superior to the left ventricle. The valve between the ascending aorta and the left ventricle is called aortic valve which prevents the backflow of blood into the heart.

3. The valve between the right atrium and the right ventricle is called the _______ valve.

Answer: Tricuspid

The tricuspid valve is also referred to as the right antrioventricular valve. The tricuspid valve prevents the backflow of blood from the right ventricle into the right atrium.

4. In a blood pressure measurement reading 120/80, the number in the denominator is which reading?

Answer: Diastolic pressure

The number on the top is the systolic pressure which is the highest arterial pressure recorded during a ventricular cycle. This is commonly recorded during the contraction stage of the heart muscle. The bottom number is the diastolic pressure. This is the lowest arterial pressure during a ventricular cycle. This is usually recorded while the heart is refilling with blood.

5. Which chamber receives the deoxygenated blood from the systemic system first?

Answer: Right atrium

Deoxygenated blood enters the right atrium from the superior vena cava. It then travels through the right ventricle and into the pulmonary circuit where it is oxygenated by our lungs. Next, it travels back through the heart via the left atrium/left ventricle and is pumped to the rest of our body's tissues.

6. What is the medical term for a severe constricting pain in the chest due to an insufficient blood supply to the heart?

Answer: Angina pectoris

Angina is usually a symptom of coronary artery disease. It is caused by the heart needing more oxygen from the blood than it receives. It usually occurs in middle-aged men and women; however, men are much more likely to experience it than women before age 60.

7. A small mass of specialized muscle on the back wall of the right atrium, also known as the pacemaker, is medically known as what?

Answer: Sinoatrial node

The sinoatrial node is also referred to as the sinoauricular node or the sinus node. It sends out electrical impulses to generate the heartbeat at regular intervals.

8. When you check the pulse of someone by placing two fingers on the side of their neck, you are feeling the blood being pumped through which vessel(s)?

Answer: Carotid artery

The carotid arteries are two vessels that supply the head with blood. They branch off from the aorta while an internal branch supplies the brain and neck and an external branch supplies superficial facial organs, i.e. nose, eyes, etc.

9. What percentage by volume of your blood is plasma?

Answer: 55%

Only about 55% of blood is plasma.

10. The system of arteries that supply the heart with its own, separate supply of blood is called?

Answer: Coronary arteries

Since the heart works harder than any other muscle in the body, it needs a much richer blood supply. The coronary arteries, which leave the aorta about a 1/2 inch above the aortic valve run along the outside of the heart. After giving off the oxygen to its capillaries, the blood then drains directly into the right atrium.

Source: Author Dr.Duodenum

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