AV Valves and Cardiac Function

AV Valves and Cardiac Function

Assessment

Interactive Video

Biology, Science, Other

9th - 10th Grade

Hard

Created by

Patricia Brown

FREE Resource

The video explains the structure and function of the ventricles, focusing on the trabeculae carneae, papillary muscles, and chordae tendineae. It describes how these structures work together to ensure the proper functioning of the atrioventricular (AV) valves during the cardiac cycle. The papillary muscles contract to pull on the chordae tendineae, preventing the AV valves from inverting and allowing backflow of blood into the atria during ventricular contraction. This coordination is crucial for maintaining efficient blood flow and preventing regurgitation.

Read more

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the ridges inside the ventricles called?

Papillary muscles

Trabeculae carneae

Chordae tendineae

AV valves

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What connects the trabeculae carneae to the AV valves?

Atrial muscles

Ventricular walls

Chordae tendineae

Papillary muscles

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the function of chordae tendineae?

To open the AV valves

To connect papillary muscles to the ventricular walls

To contract the ventricles

To prevent AV valves from inverting

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the role of papillary muscles during ventricular relaxation?

They relax and pull on chordae tendineae

They contract to close AV valves

They relax and do not pull on chordae tendineae

They contract to open AV valves

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to the chordae tendineae when ventricles are relaxed?

They expand

They are tightened

They are loose

They contract

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is it important for AV valves to remain closed during ventricular contraction?

To allow blood to flow into the atria

To prevent blood from flowing back into the atria

To increase blood pressure in the atria

To decrease blood pressure in the ventricles

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What would happen if AV valves opened during ventricular contraction?

Blood would flow into the ventricles

Ventricles would expand

Blood pressure would decrease

Blood would flow back into the atria

Create a free account and access millions of resources

Create resources
Host any resource
Get auto-graded reports
or continue with
Microsoft
Apple
Others
By signing up, you agree to our Terms of Service & Privacy Policy
Already have an account?