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NCAT Practice Test - Practice Test - Biology - Circulatory System Quiz

Attempt 10 MCQs on NCAT Practice Test - Practice Test - Biology - Circulatory System | Quiz 2

11. What is the outer protective covering of the heart called?



12. Which layer of the heart is made of cardiac muscle?



13. What structure divides the two ventricles?



14. What structures attach to the AV valve cusps to prevent inversion?



15. What is the adult remnant of the fetal opening between atria?



16. What is the adult remnant of the fetal ductus arteriosus?



17. Which structure drains most of the heart's venous blood?



18. What structures transmit impulses from bundle branches to ventricular myocardium?



19. What causes the slight delay between atrial and ventricular contraction?



20. What structures allow cardiac muscle to function as a syncytium?



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