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The cardiovascular system- MCQ'S Questions & Answers 100% Correct!!
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1. Blood flows through a network of blood vessels that extend from the _________________ to the peripheral tissues a) brain b) digestive system c) heart d) lungs - ANSWERc 2. Blood is carried away from the heart by: a) arteries b) veins c) capillaries d) venules - ANSWERa 3. Capillaries are o...

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  • October 3, 2024
  • 7
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • the cardiovascular system mcqs stuvia 2024
  • the cardiovascular system mcqs questions answe
  • 1 blood flows through a network of blood vessels
  • 2 blood is carried away from the heart by a art

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The cardiovascular system- MCQ'S
Questions & Answers 100% Correct!!

1. Blood flows through a network of blood vessels that extend from the _________________ to the
peripheral tissues a) brain b) digestive system c) heart d) lungs - ANSWERc



2. Blood is carried away from the heart by: a) arteries b) veins c) capillaries d) venules - ANSWERa



3. Capillaries are often called ___________________ as their thin walls permit exchange of nutrients,
dissolved gases and waste products between the blood and surrounding tissues a) thin vessels b)
vesicules c) exchange vessels d) product vessels - ANSWERc



4. How many muscular chambers does the heart contain? a) 2 b) 4 c) 6 d) 8 - ANSWERb



5. The right atrium passes blood to the right ventricle, which pumps blood into the: a) pulmonary
circuit b) systemic circuit c) left ventricle d) left atrium - ANSWERa



6. The left atrium empties blood into the left ventricle, which pumps blood into the: a) pulmonary
circuit b) systemic circuit c) right atrium d) right ventricle - ANSWERb



7. When the heart beats, the ventricles contract at the same time and the right ventricle ejects a
_________ amount of blood than the left ventricle. a) equal b) greater c) smaller d) much smaller -
ANSWERa



8. The heart has a series of _____________ valves. a) one-way b) two-way c) three-way d) four-way -
ANSWERa



9. The right atrioventricular (AV) valve is known as the: a) mitral valve b) tricuspid valve c) bicuspid
valve d) semilunar valve - ANSWERb

, 10. Semilunar valves include: a) aortic valves b) trunk valves c) ventricular valves d) venular valves -
ANSWERa



11. Blood from the systemic circuit flows through the venae cavae into the: a) right atrium b) right
ventricle c) left atrium d) left ventricle - ANSWERa



12. Which type of cells control and co-ordinate heartbeat? a) contractile cells b) glial cells c) cells of
the spinal system d) cells of the conducting system - ANSWERd



13. Each heartbeat begins with an action potential generated at a pacemaker called the: a) sinoatrial
(SA) node b) atrioventricular (AV) node c) node of Ranvier d) intranode - ANSWERa



14. Electrical events of the conducting system can be monitored from the surface of the body by
means of an: a) electrocardiogram (ECG) b) electroencephalogram (EEG) c) electroretinogram (ERG)
d) electromyogram (EMG) - ANSWERa



15. The arrival of an electrical impulse at a cardiac muscle cell membrane produces an _________
(comparable to that in a skeletal muscle fibre), and this triggers the contraction of the cardiac muscle
cell. a) graded potential b) synaptic potential c) action potential d) presynaptic potential - ANSWERc



16. The period between the start of one heartbeat and the start of the next is called the: a) blood
cycle b) cardiac cycle c) refractory period d) latent period - ANSWERb



17. In contrast to skeletal muscle, cardiac muscle tissue contracts: a) on its own b) in response to
neural stimulation c) in reponse to hormonal stimulation d) irregularly - ANSWERa



18. The cardiac conduction system contains each the following elements, EXCEPT: a) conducting cells
b) contractile cells c) the sinoatrial (SA) node d) the atrioventricular (AV) node - ANSWERb



19. The conducting cells in the atria are found in: a) Purkinje fibres b) internodal pathways c) bundle
branches d) the atrioventricular (AV) bundle - ANSWERb



20. Each time the heart beats, a wave of depolarization travels down the ventricular septum to the
apex of the heart, from where it spreads through the ventricular: a) epithelia b) myocardium c)
epicardium d) endocardium - ANSWERb

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