Explain atrial pressure, Biology

Assignment Help:

Q. Explain Atrial Pressure?

The RA pressure wave form has three positive deflections - "a", "c", and "v" waves. The "a" wave is due to atrial systole and follows the P-wave on surface ECG. The "x" descent follows the "a" wave and represents atrial relaxation and downward pulling of the tricuspid annulus by RV contraction. The "x" descent is interrupted by the "c" wave, which is a small positive deflection caused by protrusion of the closed tricuspid valve into the RA. The pressure in the RA rises after the "x" descent due to passive atrial filling. The atrial pressure then peaks as the "v" which represents ventricular systole.

The LA pressure waveform is similar to that of the RA although normal LA pressure is higher representing the high pressure system of the left side of the heart. In LA pressures, unlike RA pressures, the "v" wave is generally higher than the "a" wave.


Related Discussions:- Explain atrial pressure

Phylum Coelenterata, What is the adaptative radiatoin of coelenterates

What is the adaptative radiatoin of coelenterates

Assisting in procedure of biopsy, ASSISTING IN PROCEDURE OF BIOPSY Bio...

ASSISTING IN PROCEDURE OF BIOPSY Biopsies are removal of a small piece of tissue for examination under microscope. Such examinations are called hist to pathological examina

Explain ketogenic diet, Explan Ketogenic diet Ketogenic diet:   It is ...

Explan Ketogenic diet Ketogenic diet:   It is occasionally used to facilitate the control of epilepsy. Here, the patient  is  initially  fasted  for  48 hours and thereafter,

Define the drugs effects on excretion, Define the Drugs Effects on Excretio...

Define the Drugs Effects on Excretion? Use of certain drugs can influence the excretion of certain substances. For example, besides their intended increase in sodium excretion,

Why on earth would be drinking milk to feel better, If a person has a stoma...

If a person has a stomach ulcer (that is aggravated by excessive hydrochloric acid {HCl} secretion ), why on earth would he or she be drinking milk to feel better, when milk is als

Explain the largest group of bacteria eubacteria, Explain the largest group...

Explain the largest group of bacteria Eubacteria? Eubacteria are the largest group of bacteria within Kingdom Monera. They are the "true" bacteria, what most people referred to

Patent ductus arteriosus , Patent Ductus Arteriosus  (PDA)   PDA is one...

Patent Ductus Arteriosus  (PDA)   PDA is one of  the most common cardiac anomalies. It occurs twice as frequently in girls as in boys.  In patent ductus Arteriosus there is

What is predatism, Q. What is predatism? The Predatism is the ecologica...

Q. What is predatism? The Predatism is the ecological interaction in which one individual kills or mutilates another to get food. The Predatism is an inharmonious (negative) ec

Explain use of rifaximin, Rifaximin (Xifaxan)  An anon-absorbed oral an...

Rifaximin (Xifaxan)  An anon-absorbed oral antibiotic, was about as effective as ciprofloxacin for treatment of travelers' diarrhea, mostly caused by E. coli. It is not effecti

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd