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

Determine the most probable mode of inheritance, In the following pedigrees...

In the following pedigrees, the disorders or traits presented follow simple patterns of Mendelian inheritance. For each trait, determine the most probable mode of inheritance, stat

Poly-functional enzymes, Bi-and Poly-Functional Enzymes These enzymes a...

Bi-and Poly-Functional Enzymes These enzymes are generated by genes obtained by fusion of the coding regions of two or more genes encoding various enzymes. In simple words, the

Is acetylcholine used in consciousness, Q. Is Acetylcholine used in conscio...

Q. Is Acetylcholine used in consciousness? Cholinergic mechanisms are important in wakefulness and cortical activation. In general, increased acetylcholine is associated with w

Explain the procedure for morphological study of fungi, Explain the Procedu...

Explain the Procedure for Morphological Study of Fungi? Now carry out the exercise, following the steps enumerated herewith: 1. Prepare a humid chamber by placing two-three

Determine the functions of human body system, Determine the function of hum...

Determine the function of human body system Human body has different systems to perform different functions. A system consists of organs to perform a particular set of function

Explain the physical work capacity tests, Explain The physical work capacit...

Explain The physical work capacity tests? The physical work capacity tests include common tests like running staircases (Step test) or using a bicycle ergo meter or treadmill.

What is the probability of carrier of the recessive allele, Two parents who...

Two parents who are each known to be carriers of an autosomal recessive allele have four children. None of the children has the recessive condition. What is the probability that

Cnidarians: obelia, why is obelia considered to be of special interest in Z...

why is obelia considered to be of special interest in Zoology as an animal showing an intermediate grade of organisation

What roles do membrane proteins play in transporting, What roles do membran...

What roles do membrane proteins play in transporting only certain substances into a cell? Some proteins form channels or pores by which certain substances can pass. Other pr

.phylum pisces, wt is an air bladder and its function wt is catadromous and...

wt is an air bladder and its function wt is catadromous and anadromus migration

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