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

Skeletal system - arm bones, ARM BONES - Each arm contain 30 bones as ...

ARM BONES - Each arm contain 30 bones as : humerus in upper arm, radius ulna in forearm, 8 carples in wrist, 5 metacorples  in plam, 14 phalnges in fingers. HUMERU

Difference between plants and animals, DIFFERENCE BETWEEN PLANTS  AND ANIM...

DIFFERENCE BETWEEN PLANTS  AND ANIMALS - S . N o . C h a ra c ter P l an ts A n i m al s 1 Nutrition

St-segment in exercise induced pvc, Q. What do you mean by  ST-Segment in ...

Q. What do you mean by  ST-Segment in Exercise Induced  PVC? Ans. Over the years it has been believed that repolarization in ventricular ectopic beats had no diagnostic si

Explain the source of energy - growth of microorganism, Explain the Source ...

Explain the Source of Energy - Growth of Microorganism? Constant supply of energy is required to carry out cellular activities, like biosynthesis and degradation of macromolecu

Do algae reproduce sexually or asexually, Do algae reproduce sexually or as...

Do algae reproduce sexually or asexually? There are algae that replicate sexually and there are algae that replicate asexually. In unicellular algae reproduction is usually

Applications of oracle clinical in pharmaceutical industries, Question 1: ...

Question 1: Write the applications of Oracle clinical in Pharmaceutical industries Explain what is "Oracle clinical" Explain different application of oracle clinical

Complications of making a definite classification, Assume for this question...

Assume for this question that we are discussing a rare human disorder. Describe as detailed as possible the characteristics of this disorder if it is: autosomal dominant autosomal

Wind energy and its advantages and disadvantages, Wind energy         ...

Wind energy            Wind power is one of most cheapest renewable energy sources today. Wind turbines convert the power of wind into electrical energy. Wind occurs due to t

State the term - aneurysms, State the term - Aneurysms Aneurysms are va...

State the term - Aneurysms Aneurysms are vascular dilations resulting from localised defects in the elasticity of a vessel. They can be visualised as balloon like expansions of

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