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

LPN, In many tests it is acceptable to read a positive result before the in...

In many tests it is acceptable to read a positive result before the incubation time is completed. why is this not the case with starch agar?

Why physical activity is important for weight loss, Why Physical Activity i...

Why Physical Activity is important for weight loss? You are already aware that exercise plays an important role in initiating and sustaining weight loss along with dietary and

Explain mode of feeding, Normal 0 false false false EN-...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4 Mode of feeding

Determine the implant placement, Implant placement The ideal siting and...

Implant placement The ideal siting and orientation of the implant is dictated by the restorative requirements, but this may have to be modified by the existing ridge morphology

Etiology of constipation, Q. Etiology of constipation? The etiology and...

Q. Etiology of constipation? The etiology and management of two distinct disorders of the bowel viz., diarrhoea and constipation. We small continue our discussion on certain ot

Purpose of evaluation, PURPOSE OF EVALUATION: The purpose of  evaluati...

PURPOSE OF EVALUATION: The purpose of  evaluation of service is to answer the questions, "To what extent and how well did the programme meet the objectives of  the service?'

Are bacteria the only prokaryotic beings, Are bacteria the only prokaryotic...

Are bacteria the only prokaryotic beings? Prokaryotic beings are classified into two big groups: archaebacteria and bacteria (this last also known as eubacteria). Compared

Chromosomes, Chromosomes  are the condensed, fibrillar, self- replicating g...

Chromosomes  are the condensed, fibrillar, self- replicating genetic structures of cells containing the cellular DNA which bears in its nucleotide sequence the linear array of gene

Fdas post marketing surveillance system works, Problem 1: How does the ...

Problem 1: How does the FDA's post marketing surveillance system works? Show FDA's post marketing surveillance system Explain about Adverse Event reporting system and

Cost due to injury to worker, Cost due to Injury to Worker Medical...

Cost due to Injury to Worker Medical cost - medicine, surgery, hospitalization, extended treatment. Working time lost due to injury or death. Time loss of cowork

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