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

Why diabetics patient should have vegetables every day, Why Diabetics patie...

Why Diabetics patient should have Vegetables every day Diabetics should have vegetables every day. Fresh vegetables are to be preferred because they have less fats and salt. Da

What is the senses explain their vision , What is the Senses explain their ...

What is the Senses explain their Vision ? Vision :  The human eye consists of structures which evolved together to focus light on a sensitive area called the retina. Light f

What are vitamins, Q. What are vitamins? What are the major vitamins needed...

Q. What are vitamins? What are the major vitamins needed by humans? Most vitamins are coenzymes fundamental substances for the enzyme functioning that are not produced by the o

Phylum mollusca, what is the correct classification of phylum mollasca

what is the correct classification of phylum mollasca

What is organ system in human biology, Organ Systems :  Organisms are comp...

Organ Systems :  Organisms are composed of organ systems. Each organ system is made up of several different organs. For example, the digestive system is composed of several organ

Causes of elevated triglycerides, Possible causes of elevated triglycerides...

Possible causes of elevated triglycerides: - Obesity - Alcohol - Uncontrolled diabetes - Hypothyroidism - Genetic - Liver disease - Drugs Possible causes o

Explain fossn ovalis defect ostium secundum defect, Explain Fossn Ovalis De...

Explain Fossn Ovalis Defect (Ostium Secundum Defect) ? This is the most common type of atrial septal defect. The usual approach is through a midline incision and median sterno

External factor - factor controlling metamorphosis in insect, External fact...

External factors - Factors Controlling Metamorphosis in Insects In few cases an external factor may be accountable for initiating moulting, as for instance in the blood su

Fusarium toxins, Another important genus of mycotoxin producers is Fusarium...

Another important genus of mycotoxin producers is Fusarium, many species of which produce members of the trichothecene family of mold metabolites like deoxynivalenol, neosolaniol a

Explain 3rd type of hypersensitivity, It is immune difficult mediated hype...

It is immune difficult mediated hypersensitivity. Typical manifestations contain rheumatoid arthritis, serum sickness, necrotizing etc.

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