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

Author Question: The period of time during the cardiac cycle when cells cannot respond to a stimulus, no matter how ... (Read 52 times)

debasdf

  • Hero Member
  • *****
  • Posts: 570
on: Jun 25, 2018
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
Reply #1 on: Jun 25, 2018
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
Wow, this really help

jojobee318

  • Member
  • Posts: 298
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.

Did you know?

The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

Did you know?

Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Did you know?

The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.

Immortal HeLa Cells Immortal HeLa Cells
Stem Cells Stem Cells
Although average brain size increases gradually though time in H. erectus, individuals with small br Although average brain size increases gradually though time in H. erectus, individuals with small br
Life cycle of Giardia. Life cycle of Giardia.
CO2 follows glacial cycle CO2 follows glacial cycle
The cardiac cycle The cardiac cycle
Video: Hemoglobin's affinity with oxygen - carbon dioxide, temperature and bisphosphoglycerate (BPG)

For a complete list of videos, visit our video library