This topic contains a solution. Click here to go to the answer

Author Question: The period of time during the cardiac cycle when cells cannot respond to a stimulus, no matter how ... (Read 171 times)

debasdf

  • Hero Member
  • *****
  • Posts: 570
The period of time during the cardiac cycle when cells cannot respond to a stimulus, no matter how strong, is the relative refractory period.
 
  Indicate whether the statement is true or false

Question 2

Which of the following are semilunar valves?
 
  a. Aortic and pulmonic
  b. Aortic and tricuspid
  c. Pulmonic and mitral
  d. Tricuspid and mitral



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Edwyer

  • Sr. Member
  • ****
  • Posts: 337
Answer to Question 1

F
During the absolute refractory period, the cell will not respond to further stimulation. This means that the myocardial working cells cannot contract and the cells of the electrical conduction system cannot conduct an electrical impulse, no matter how strong the stimulus.

Answer to Question 2

A
The pulmonic and aortic valves are semilunar (SL) valves. The semilunar valves prevent backflow of blood from the aorta and pulmonary arteries into the ventricles.




debasdf

  • Member
  • Posts: 570
Reply 2 on: Jun 25, 2018
Thanks for the timely response, appreciate it


steff9894

  • Member
  • Posts: 337
Reply 3 on: Yesterday
Great answer, keep it coming :)

 

Did you know?

Limit intake of red meat and dairy products made with whole milk. Choose skim milk, low-fat or fat-free dairy products. Limit fried food. Use healthy oils when cooking.

Did you know?

Automated pill dispensing systems have alarms to alert patients when the correct dosing time has arrived. Most systems work with many varieties of medications, so patients who are taking a variety of drugs can still be in control of their dose regimen.

Did you know?

People about to have surgery must tell their health care providers about all supplements they take.

Did you know?

The average person is easily confused by the terms pharmaceutics and pharmacology, thinking they are one and the same. Whereas pharmaceutics is the science of preparing and dispensing drugs (otherwise known as the science of pharmacy), pharmacology is the study of medications.

Did you know?

Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

For a complete list of videos, visit our video library