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

Explain somatic cell, For a somatic cell with 2n = 4, which of the followin...

For a somatic cell with 2n = 4, which of the following is true? (Note: G1- growth phase 1, G2 - growth phase 2, M - metaphase, P - prophase and T - telophase) a.  (Number of

How different is the amphibian heart from the fish heart, How different is ...

How different is the amphibian heart from the fish heart? The fish heart has only two chambers, a ventricle and an atrium, and the blood that comes to it is purely venous. I

Define about the chemotherapy, Define about the Chemotherapy - Cancer? ...

Define about the Chemotherapy - Cancer? Chemotherapy results in lot of side effects. This is because the drug effects are not specific to cancer cells alone. Even the host cell

What concerns should alek''s healthcare, Nine-year-old Alek is admitted to ...

Nine-year-old Alek is admitted to the emergency room with a closed fracture of the right femur. Radiography revels that the fracture crosses the distal epiphyseal plate. What conce

General guidelines of maintaining records of patients, General Guidelines ...

General Guidelines While working in the ward, you are always required to record. You should follow the general guidelines while recording which are as follows: All entri

What are the main biological functions of water, Q. What are the main biolo...

Q. What are the main biological functions of water? Ans. Water is the basic solvent for chemical reactions of living beings; it is the main means of substance transportati

Determine the biocompatibility of the material, Determine the Biocompatibil...

Determine the Biocompatibility of the material It is a vital factor as we have discussed in detail in the preceeding part of this unit. The nature of the material and its surf

What is cartilage explain briefly, What is Cartilage explain briefly? S...

What is Cartilage explain briefly? Some bones, such as the bones in the skull, develop directly from membranous connective tissue, but in human fetal development, most of the s

Tricuspid stenosis-tricuspid valve disease, Tricuspid Stenosis :  Acquired...

Tricuspid Stenosis :  Acquired tricuspid stenosis is most often due to chronic rheumatic carditis. Rarely could it be due to right atrial tumors or carcinoid syndrome producing mi

Phylum Coelenterata, What is the adaptative radiatoin of coelenterates

What is the adaptative radiatoin of coelenterates

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