Trivia: The Cardiovascular System Quiz!

26 Questions | Attempts: 54
Please wait...
Question 1 / 26
0 %
0/100
Score 0/100
1. Cardiac muscle cells are connected to adjacent cardiac muscle cells by junctions called __________.
Submit
Please wait...
About This Quiz
Trivia: The Cardiovascular System Quiz! - Quiz

Do you suppose you know enough about the cardiovascular system? The cardiovascular system is comprised of the heart and the circulatory system. The heart, which is a muscular organ, pumps blood and nutrients into the body. The structures of the cardiovascular system include the heart, blood vessels, and blood. The... see morelymphatic system is strongly associated with the cardiovascular system. If you are studying for an exam, this quiz will get the juices flowing. see less

2.
You may optionally provide this to label your report, leaderboard, or certificate.
2. Cardiac muscle fibers are interconnected in branching networks that spread in all directions of the heart to form a ______ which is a mass of merging cardiac muscle cells.
Submit
3. The heart contains two functional syncytia. They are the _________ which is located in the atrial walls and the _______ which is located in the ventricular walls. If any part of the syncytium is stimulated, the whole structure contracts as a unit.
Submit
4. Except for a small region in the floor of the _______, the atrial syncytium is separated from the ventricular syncytium by the _______________.
Submit
5. The _________ is a network of specialized cardiac muscle cells that initiates and distributes electrical impulses.
Submit
6. Most of the specialized cardiac muscle cells involved in the cardiac conduction system are smaller than the _________ of the myocardium and contain fewer ________. Instead of contracting they initiate and distribute the _____________.
Submit
7. The fibers of the S-A node are continuous with those of the __________.
Submit
8. The S-A node is referred to as the _________ of the heart.
Submit
9. The S-A node contains pacemaker cells which establish the __________. It is responsible for the ________ of the heart.
Submit
10. As the cardiac impulse travels from the S-A node into the __________, the atria _______ almost simultaneously.
Submit
11. Junctional fibers have very _____ diameters that cause the impulses they carry to be ________.
Submit
12. The A-V node provides the only normal _____________ between the atrial and ventricular syncytia.
Submit
13. The ____________ does not conduct impulses and thus isolates the atrial myocardium from the ventricular myocardium.
Submit
14. The cells composing the A-V node are ______ efficient in conducting an impulse which causes a short delay in the transmission of the impulse to the_________.
Submit
15. Once the cardiac impulse reaches the distal end of the A-V node, it passes into a group of large fibers that make up the __________. This bundle is located in the superior portion of the ____________ where impulses travel __________.
Submit
16. The A-V bundle persists only briefly before dividing into the _____ and ______ bundle branches. These branches extend toward the _____ of the heart in the _________.
Submit
17. The bundle branches conduct the cardiac impulse to the ___________.
Submit
18. The purkinje fibers are very _____ fibers, essentially long strands of _____-shaped cells with few ______. They are located in the _________.
Submit
19. Purkinje fibers conduct impulses very _________; as fast as _____________.
Submit
20. The _______ is a mass of specialized cardiac muscle cells located in the lower right atrium near the entrance of the coronary sinus.
Submit
21. The conduction system of the heart includes the _____ which is a small mass of specialized cardiac muscle cells situated on the posterior wall of the right atrium just below the opening of the superior vena cava beneath the epicardium.
Submit
22. What is the importance of the A-V node?
Submit
23. The S-A node initiates one impulse after another _____ times per minute
Submit
24. _________ are fibers that are interspersed amongst the atrial muscle fibers that conduct the impulses to the A-V node.
Submit
25. Purkinje fibers complete the conduction pathway through the __________, penetrate into the _____ and then travel ____ into the __________. They give off many small paths and become continuous with the _____________.
Submit
26. The ventricular muscle fibers are arranged in patterns of _______. When these fibers are stimulated by the branches of the _______ , the ventricular walls contract with a _______ motion. The end result is that a ______ contraction of the ventricles begins at the _____ and pushes the blood _______ toward the ________. This effectively ejects some blood from the ventricles into the ____ and the _________.
Submit
×
Saved
Thank you for your feedback!
View My Results
Cancel
  • All
    All (26)
  • Unanswered
    Unanswered ()
  • Answered
    Answered ()
Cardiac muscle cells are connected to adjacent cardiac muscle cells by...
Cardiac muscle fibers are interconnected in branching networks that...
The heart contains two functional syncytia. They are the _________...
Except for a small region in the floor of the _______, the atrial...
The _________ is a network of specialized cardiac muscle cells that...
Most of the specialized cardiac muscle cells involved in the cardiac...
The fibers of the S-A node are continuous with those of the...
The S-A node is referred to as the _________ of the heart.
The S-A node contains pacemaker cells which establish the __________....
As the cardiac impulse travels from the S-A node into the __________,...
Junctional fibers have very _____ diameters that cause the...
The A-V node provides the only normal _____________ between the atrial...
The ____________ does not conduct impulses and thus isolates the...
The cells composing the A-V node are ______ efficient in conducting an...
Once the cardiac impulse reaches the distal end of the A-V node, it...
The A-V bundle persists only briefly before dividing into the _____...
The bundle branches conduct the cardiac impulse to the ___________.
The purkinje fibers are very _____ fibers, essentially long strands of...
Purkinje fibers conduct impulses very _________; as fast as...
The _______ is a mass of specialized cardiac muscle cells located in...
The conduction system of the heart includes the _____ which is a small...
What is the importance of the A-V node?
The S-A node initiates one impulse after another _____ times per...
_________ are fibers that are interspersed amongst the atrial muscle...
Purkinje fibers complete the conduction pathway through the...
The ventricular muscle fibers are arranged in patterns of _______....
Alert!

Advertisement