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

Define absorption, Define Absorption, Storage and Elimination of vitamins? ...

Define Absorption, Storage and Elimination of vitamins? Reading through this section you would realize that all fat-soluble vitamins undergo similar metabolic fate. They are a

Flow cytometry, Ask que1. Design a 4 colour Flow cytometry experiment with ...

Ask que1. Design a 4 colour Flow cytometry experiment with an aim to identify B220-, CD3+, CD4+ (DOUBLE POSITIVE) AND B220+, CD3-, CD4- (DOUBLE NEGATIVE) cells. Select from the fol

Plants, why roots grow downword

why roots grow downword

Lymph capillaries, Normal 0 false false false EN-IN X...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

To study if bacteria grow better where it is warm or cold, To study if bact...

To study if bacteria grow better where it is warm or cold Again inoculate two sterile dishes. Label one 'warm'  and the other 'cold'. Place the 1st dish in a dark warm place an

Classification of protein based on shape, Protein Classification Based on S...

Protein Classification Based on Shape There are three types of proteins on the basis of shape - Fibrous, Globular, Intermediate 1 .       FIBROUS PROTEINS They ar

Role of microorganism in fermentation foods, Normal 0 false f...

Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4

Explain general equation of the aerobic respiration, Q. What is the general...

Q. What is the general equation of the aerobic respiration (also representing phosphate and ADP)? The general  chemical equation of the aerobic respiration is: C 6 H 12 O 6

Physical concepts of plant water relation - osmosis, Physical Concepts of P...

Physical Concepts of Plant Water Relation - Osmosis Osmosis is a special case of diffusion. Here, the movement of water (solvent) takes place from a region of higher c

What is the vector of chagas disease, Q. What is the vector of Chagas' dise...

Q. What is the vector of Chagas' disease? How is the disease transmitted? The vector of the Chagas' disease is its intermediate host, a triatomine bug. The key species is Triat

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