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

Is glucose was the only source of fuel, What is the RQ if glucose was the o...

What is the RQ if glucose was the only source of fuel used in metabolism?

Lymphatic obstruction leading to heart failure?, A 62 year old white male d...

A 62 year old white male develops pitting edema of both feet. Put on Lasix and metoprolol. Develops hallucinations and confusion. Tapered off. Dies 3 weeks later of lymphatic o

Does ph affect the enzyme activity, Q. Does pH affect the enzyme activity? ...

Q. Does pH affect the enzyme activity? The concentrations of hydrogen ions in solution affect the enzyme activity. Each enzyme has utmost efficiency under an optimum p H . S

Explain greenhouse gases, The two gases making highest relative contributio...

The two gases making highest relative contribution to the greenhouse gases are: 1. CO2 and CH4 2. CH4 and N2O 3. CFC55 and N2O 4. CO2 and N2O CO2 and CH4

Explain therapeutic nutrition, Explain therapeutic  nutrition This ne...

Explain therapeutic  nutrition This necessitates dietitian's possessing a wide variety of skills. Beyond the technical knowledge and practical skills dietitians needs to have

Define carcinogenic - non-dietary factors, Define Carcinogenic - Non-dietar...

Define Carcinogenic - Non-dietary Factors? A large number of agents cause genetic damage and induce neoplastic transformation of cells, they fall into the following categories.

Explain milling extraction rate, Explain Milling extraction rate The ch...

Explain Milling extraction rate The chemical composition of the flour depends on the milling extraction rate.  Increasing the rate of flour extraction decreases the proportion

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