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

Basic calculations during the practical work in laboratory, Define Basic Ca...

Define Basic Calculations during the practical work in Laboratory? Some basic mathematical formulas and conversion factors are given herewith to help you in your calculations d

Similarities between apes and man, SIMILARITIE S BETWEEN APES AND MAN - ...

SIMILARITIE S BETWEEN APES AND MAN - Absence of tail. Broadened chest due to flattening of sternum Smaller lumber region due to reduced number of lumbar vertebrae

Define about the metabolism of selenium compounds, Define about the Metabol...

Define about the Metabolism of Selenium compounds? Selenium compounds' are generally very efficiently absorbed by humans and selenium absorption does not appear to be' under ho

Temporary partial disability - injury from an accident, Temporary Partial D...

Temporary Partial Disability - Injury from an Accident Such types of injuries which are easily recoverable and may not incapacitate the victim to perform duty apart from for

Off pump surgery , OFF PUMP SURGERY :  In spite of great advancements in t...

OFF PUMP SURGERY :  In spite of great advancements in techniques of cardio pulmonary bypass, it is still not physiological. There can be various complications related to perfusion

Botony, is a wheat plant a eustele or a siphonostele or a protostele?

is a wheat plant a eustele or a siphonostele or a protostele?

Mutation theory, MUTATION THEORY (Hugo de Vries 1901) - New species ...

MUTATION THEORY (Hugo de Vries 1901) - New species are not formed by continuous variations but sudden appearance of variations i.e., mutation. Mutation are heritable and per

Explain clear liquid diet, Explain Clear Liquid Diet Clear Liquid Die...

Explain Clear Liquid Diet Clear Liquid Diet:  It is composed  of  foods with  low residue content which  help  to minimize  the  load of food needing digestion  in  the  int

What is function of gamaaminobutyric acid, Q. What is function of Gamaamino...

Q. What is function of Gamaaminobutyric acid? GABA is the principal inhibitory transmitter in the brain. The concentration of GABA is up to 1000 times greater than that of oth

Explain thermal destruction of enzymes during sterilization, Explain about ...

Explain about Thermal Destruction of Enzymes during Sterilization? Before we move on to canning, we need to emphasize here that like thermal destruction of microorganisms, ther

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