Trivia: The Cardiovascular System Quiz!

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Cardiac muscle fibers are interconnected in branching networks that...

Purkinje fibers conduct impulses very _________; as fast as...

The purkinje fibers are very _____ fibers, essentially long strands of...

The bundle branches conduct the cardiac impulse to the ___________.

The A-V bundle persists only briefly before dividing into the _____...

Once the cardiac impulse reaches the distal end of the A-V node, it...

The cells composing the A-V node are ______ efficient in conducting an...

The ____________ does not conduct impulses and thus isolates the...

The A-V node provides the only normal _____________ between the atrial...

Junctional fibers have very _____ diameters that cause the...

As the cardiac impulse travels from the S-A node into the __________,...

The S-A node contains pacemaker cells which establish the __________....

The S-A node is referred to as the _________ of the heart.

The fibers of the S-A node are continuous with those of the...

Most of the specialized cardiac muscle cells involved in the cardiac...

The _________ is a network of specialized cardiac muscle cells that...

Except for a small region in the floor of the _______, the atrial...

The heart contains two functional syncytia. They are the _________...

Cardiac muscle cells are connected to adjacent cardiac muscle cells by...

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 _______....

Trivia: The Cardiovascular System Quiz!

1. 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.

2.

What first name or nickname would you like us to use?

2. Purkinje fibers conduct impulses very _; as fast as _____.

3. The purkinje fibers are very ___ fibers, essentially long strands of _-shaped cells with few . They are located in the _____.

4. The bundle branches conduct the cardiac impulse to the ___________.

5. The A-V bundle persists only briefly before dividing into the _ and bundle branches. These branches extend toward the _ of the heart in the _______.

6. 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 .

7. 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___.

8. The ____________ does not conduct impulses and thus isolates the atrial myocardium from the ventricular myocardium.

9. The A-V node provides the only normal _____________ between the atrial and ventricular syncytia.

10. Junctional fibers have very _ diameters that cause the impulses they carry to be ____.

11. As the cardiac impulse travels from the S-A node into the ____, the atria _ almost simultaneously.

12. The S-A node contains pacemaker cells which establish the __. It is responsible for the of the heart.

13. The S-A node is referred to as the _________ of the heart.

14. The fibers of the S-A node are continuous with those of the __________.

15. 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 _____.

16. The _________ is a network of specialized cardiac muscle cells that initiates and distributes electrical impulses.

17. Except for a small region in the floor of the _, the atrial syncytium is separated from the ventricular syncytium by the _________.

18. 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.

19. Cardiac muscle cells are connected to adjacent cardiac muscle cells by junctions called __________.

20. The _______ is a mass of specialized cardiac muscle cells located in the lower right atrium near the entrance of the coronary sinus.

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.

22. What is the importance of the A-V node?

23. The S-A node initiates one impulse after another _____ times per minute

24. _________ are fibers that are interspersed amongst the atrial muscle fibers that conduct the impulses to the A-V node.

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 _____.

Trivia: The Cardiovascular System Quiz!

1. 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.

2.

What first name or nickname would you like us to use?

2. Purkinje fibers conduct impulses very _________; as fast as _____________.

3. The purkinje fibers are very _____ fibers, essentially long strands of _____-shaped cells with few ______. They are located in the _________.

4. The bundle branches conduct the cardiac impulse to the ___________.

5. The A-V bundle persists only briefly before dividing into the _____ and ______ bundle branches. These branches extend toward the _____ of the heart in the _________.

6. 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 __________.

7. 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_________.

8. The ____________ does not conduct impulses and thus isolates the atrial myocardium from the ventricular myocardium.

9. The A-V node provides the only normal _____________ between the atrial and ventricular syncytia.

10. Junctional fibers have very _____ diameters that cause the impulses they carry to be ________.

11. As the cardiac impulse travels from the S-A node into the __________, the atria _______ almost simultaneously.

12. The S-A node contains pacemaker cells which establish the __________. It is responsible for the ________ of the heart.

13. The S-A node is referred to as the _________ of the heart.

14. The fibers of the S-A node are continuous with those of the __________.

15. 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 _____________.

16. The _________ is a network of specialized cardiac muscle cells that initiates and distributes electrical impulses.

17. Except for a small region in the floor of the _______, the atrial syncytium is separated from the ventricular syncytium by the _______________.

18. 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.

19. Cardiac muscle cells are connected to adjacent cardiac muscle cells by junctions called __________.

20. The _______ is a mass of specialized cardiac muscle cells located in the lower right atrium near the entrance of the coronary sinus.

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.

22. What is the importance of the A-V node?

23. The S-A node initiates one impulse after another _____ times per minute

24. _________ are fibers that are interspersed amongst the atrial muscle fibers that conduct the impulses to the A-V node.

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 _____________.

2. Purkinje fibers conduct impulses very _; as fast as _____.

3. The purkinje fibers are very ___ fibers, essentially long strands of _-shaped cells with few . They are located in the _____.

5. The A-V bundle persists only briefly before dividing into the _ and bundle branches. These branches extend toward the _ of the heart in the _______.

6. 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 .

7. 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___.

10. Junctional fibers have very _ diameters that cause the impulses they carry to be ____.

11. As the cardiac impulse travels from the S-A node into the ____, the atria _ almost simultaneously.

12. The S-A node contains pacemaker cells which establish the __. It is responsible for the of the heart.

15. 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 _____.

17. Except for a small region in the floor of the _, the atrial syncytium is separated from the ventricular syncytium by the _________.

18. 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.

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 _____.