« previous next »

Author Question: Pressure rising in the ventricles but no blood being ejected is the definition of: a. ventricular ... (Read 49 times)

xclash

  • Hero Member
  • *****
  • Posts: 681
on: Jul 16, 2018
Pressure rising in the ventricles but no blood being ejected is the definition of:
 
  a. ventricular systole. c. isovolumetric relax-ation.
  b. ventricular diastole. d. isovolumetric con-traction.

Question 2

Isovolumetric contraction of the ventricles follows which electrocardiographi c event?
 
  a. P wave c. S wave
  b. R wave d. T wave


Ptupou85

  • Sr. Member
  • ****
  • Posts: 334
Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: D
During isovolumetric contraction, the ventricular muscle fibers shorten, but the volume of blood in the ventricle remains constant because the mitral valve, tricuspid valve, aortic valve, and the pulmonary valve remain closed.

Answer to Question 2

ANS: B
Ventricular systole begins with a period of isovolumetric contraction, which follows the peak of the R wave. Atrial systole follows the P wave. The S wave is followed by ventricular ejection. Isometric relaxation of the ventricles follows the T wave.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.

Did you know?

Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.

Methicilli ...
Did you know?

About 80% of major fungal systemic infections are due to Candida albicans. Another form, Candida peritonitis, occurs most often in postoperative patients. A rare disease, Candida meningitis, may follow leukemia, kidney transplant, other immunosuppressed factors, or when suffering from Candida septicemia.

Did you know?

According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.

Did you know?

The effects of organophosphate poisoning are referred to by using the abbreviations “SLUD” or “SLUDGE,” It stands for: salivation, lacrimation, urination, defecation, GI upset, and emesis.

The meninges and ventricles of the CNS. The meninges and ventricles of the CNS.
Atmospheric pressure decreases as altitude increases. Atmospheric pressure decreases as altitude increases.
Assessing Grip Strength Using a Blood Pressure Cuff Assessing Grip Strength Using a Blood Pressure Cuff
Mononucleosis is caused by the Epstein–Barr virus. Symptoms of the infectious disease are swollen pa Mononucleosis is caused by the Epstein–Barr virus. Symptoms of the infectious disease are swollen pa
Refraction and the Setting or Rising Sun Refraction and the Setting or Rising Sun
Blood Transfusion Blood Transfusion
Video: Coaductile pathway, Timing of contraction signal & Conduction system and ECG

For a complete list of videos, visit our video library