Worksheet: The Heart

In this worksheet, we will practice describing the basic structure of the heart, and explaining how the heart is adapted for its function.

Q1:

Which of the following is not a chamber of the human heart?

  • ARight atrium
  • BRight ventricle
  • CRight aorta
  • DLeft ventricle
  • ELeft atrium

Q2:

Which of the following best defines the term heart rate (bpm)?

  • AThe number of times the heart stops per minute
  • BThe volume of blood the heart releases per second
  • CThe volume of blood the heart releases per minute
  • DThe number of times the heart beats per hour
  • EThe number of times the heart beats per minute

Q3:

From what chamber does the deoxygenated blood leave the heart to go to the lungs?

  • ARight ventricle
  • BRight atrium
  • CLeft atrium
  • DLeft ventricle

Q4:

From what chamber does the oxygenated blood leave the heart to be transported around the body?

  • ARight atrium
  • BLeft atrium
  • CRight ventricle
  • DLeft ventricle

Q5:

Why is the blood transported to the lungs?

  • ATo absorb water
  • BTo absorb carbon dioxide
  • CTo become deoxygenated
  • DTo become oxygenated

Q6:

What structures within the heart control blood flow from the atria into the ventricle?

  • AStents
  • BNerves
  • CArteries
  • DCapillaries
  • EValves

Q7:

How many chambers does the human heart have?

Q8:

Through what chamber does the oxygenated blood from the lungs enter the heart?

  • ARight atrium
  • BLeft atrium
  • CRight ventricle
  • DLeft ventricle

Q9:

Through what chamber does the deoxygenated blood from the body enter the heart?

  • ARight ventricle
  • BRight atrium
  • CLeft ventricle
  • DLeft atrium

Q10:

The diagram provided shows a simplified version of the double circulatory system of the human body.

What is the major blood vessel represented by label A?

  • APulmonary artery
  • BVena cava
  • CAorta
  • DPulmonary vein

What is the major blood vessel represented by label B?

  • APulmonary artery
  • BAorta
  • CPulmonary vein
  • DVena cava

Q11:

Complete the table to show the function of the major blood vessels.

VesselBlood Is Taken FromBlood Is Taken To
Pulmonary arteryHeart1
Pulmonary veinLungs2
Aorta3Body
Vena cava4Heart
  • A1: Lungs, 2: Heart, 3: Lungs, 4: Body
  • B1: Lungs, 2: Body, 3: Heart, 4: Lungs
  • C1: Lungs, 2: Body, 3: Heart, 4: Brain
  • D1: Lungs, 2: Heart, 3: Heart, 4: Body
  • E1: Brain, 2: Body, 3: Heart, 4: Lungs

Q12:

Pulmonary refers to blood vessels that transport blood between the heart and the .

  • Astomach
  • Bbrain
  • Ckidneys
  • Dliver
  • Elungs

Q13:

What type of body tissue are the walls of the heart primarily comprised of?

  • ANervous
  • BSkeletal
  • CMuscle
  • DEpithelial

Q14:

Starting with the vena cava, what is the correct process of blood flow through the heart and its associated blood vessels?

  • AVena cava right atrium left ventricle pulmonary vein lungs pulmonary artery left atrium right ventricle aorta
  • BVena cava right atrium right ventricle pulmonary artery lungs pulmonary vein left atrium left ventricle aorta
  • CVena cava left ventricle left atrium pulmonary artery lungs pulmonary vein right ventricle right atrium aorta
  • DVena cava left atrium left ventricle pulmonary artery lungs pulmonary vein right atrium right ventricle aorta
  • EVena cava right ventricle right atrium pulmonary artery lungs pulmonary vein left ventricle left atrium aorta

Q15:

In the human heart, why is the wall of the left ventricle thicker than that of the right ventricle?

  • AThe right ventricle is adapted to push blood at low pressure around the body.
  • BThe left ventricle is adapted to push blood at high pressure to the lungs.
  • CThe left ventricle is adapted to push blood at high pressure around the body.
  • DThe right ventricle only stores the blood it receives from the body and does not need to push it out of the heart.

Q16:

Calculate the heart rate (bpm) of a heart that has a cardiac output of 4,900 (cm3/min) and a stroke volume of 80 (cm3/b), to the nearest whole number.

Q17:

Which of the following equations correctly links the heart rate (beats per minute), the stroke volume (cubic centimeters per beat), and the cardiac output (cubic centimeters per minute)?

  • ACardiacoutputheartratestrokevolume=÷
  • BHeartratestrokevolumecardiacoutput=÷
  • CStrokevolumeheartratecardiacoutput=×
  • DHeartratecardiacoutputstrokevolume=×
  • ECardiacoutputheartratestrokevolume=×

Q18:

Calculate the stroke volume (cm3/b) of a heart that has a cardiac output of 4,900 (cm3/min) and a heart rate of 60 (bpm), to two decimal places.

Q19:

The diagram provided shows a basic outline of the heart, with the major blood vessels indicated.

State the blood vessels indicated by each of the letters A, B, C, and D.

  • AA: Vena cava, B: Aorta, C: Pulmonary vein, D: Pulmonary artery
  • BA: Vena cava, B: Pulmonary vein, C: Pulmonary artery, D: Aorta
  • CA: Vena cava, B: Pulmonary artery, C: Pulmonary vein, D: Aorta
  • DA: Pulmonary artery, B: Pulmonary vein, C: Vena cava, D: Aorta
  • EA: Aorta, B: Pulmonary artery, C: Pulmonary vein, D: Vena cava

Q20:

Calculate the cardiac output (cm3/min) of a heart that has a stroke volume of 80 (cm3/b) and a heart rate of 70 (bpm). Give your answer to the nearest whole number.

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