This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: At what point in the figure do the atrioventricular valves close? a. B c. E b. D d. ... (Read 20 times)

acc299

  • Hero Member
  • *****
  • Posts: 569
on: Jul 16, 2018
At what point in the figure do the atrioventricular valves close?
 
  a. B c. E
  b. D d. F

Question 2

When does the atrial kick begin?
 
  a. Just before atrial systole
  b. During atrial repolarization
  c. During the impulse delay in the atrioven-tricular node
  d. Simultaneously with ventricular excitation


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

AngeliqueG

  • Sr. Member
  • ****
  • Posts: 343
Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: C
The atrioventricular valves close at the beginning of ventricular systole. See Figure 9-22.

Answer to Question 2

ANS: C
As the impulse travels through the atrioventricular node, there is a 100-ms delay in conduction. This delay is important because it allows the atria to become fully depolarized and contract be-fore ventricular excitation begins. This allows the atria to contract and empty, which has been dubbed atrial kick, contributing to optimal ventricular filling.


acc299

  • Member
  • Posts: 569
Reply 2 on: Jul 16, 2018
YES! Correct, THANKS for helping me on my review

meow1234

  • Member
  • Posts: 333
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

Did you know?

There are over 65,000 known species of protozoa. About 10,000 species are parasitic.

Did you know?

Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.

Did you know?

If all the neurons in the human body were lined up, they would stretch more than 600 miles.

Did you know?

As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.

Vasectomy. (a) Vas deferens is located within the spermatic cord on both sides. (b) A small incision Vasectomy. (a) Vas deferens is located within the spermatic cord on both sides. (b) A small incision
Close-ups of Jupiter’s Atmosphere Close-ups of Jupiter’s Atmosphere
Graph showing the relationship between the freezing point of the coolant and the percentage of ... Graph showing the relationship between the freezing point of the coolant and the percentage of ...
Before starting the process of adjusting the valves, look up the specifications and exact ... Before starting the process of adjusting the valves, look up the specifications and exact ...
Figure and Ground Figure and Ground
Swimming Pool (Figure 3.1) Swimming Pool (Figure 3.1)
Video: Power Supply Polyacrylamide Gel Protein Sample

For a complete list of videos, visit our video library