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

What is phylum annelida - segmented worms, What is Phylum Annelida - Segmen...

What is Phylum Annelida - Segmented Worms? Members of this Phylum are commonly known as the segmented worms. The body of a segmented worm is made of many individual ring-like s

Causes of deforestation, Other Causes - Deforestation Natural enemies ...

Other Causes - Deforestation Natural enemies like termites, pests and several kinds of diseases affect the forests adversely. There is also massive destruction of forests beca

Blood protozoan and ricketsial diseases - trypanosomiasis, B l oo d Prot...

B l oo d Protozoan and Ricketsial Diseases T r y p a n o s o m i a si s It is also known as surra in equines and tibarsa in camel and results in intermitte

Nutritional requirements of fats and oils during infancy, Define Nutritiona...

Define Nutritional Requirements of Fats and Oils during Infancy? Adequate breast-feeding ensures 30 g fat intake by infants, of which 10% is linoleic acid and 1% is linolenic a

How is the gastric mucosa protected from the acid ph, How is the gastric mu...

How is the gastric mucosa protected from the acid pH of the stomach? The gastric epithelium is mucus secretory, i.e., it makes mucus. The mucus covers the stomach wall preventi

State the phases of soil genesis, State the phases of soil genesis Soil...

State the phases of soil genesis Soil genesis embodies two distinct phases. One is weathering that involves disintegration and decomposition of rocks and minerals, the other is

Kuch, how vagina is inserted in cock

how vagina is inserted in cock

Blunt or non-penetrating injury, Blunt or Non-penetrating Injury When ...

Blunt or Non-penetrating Injury When body is struck by a blunt object such as steering wheel or blows to chest with blunt object. External injury may appear minor but the

How can heart be affect, How can Heart be affect Heart may be affected ...

How can Heart be affect Heart may be affected in two ways. One of the complications of diabetes is autonomic dysfunction which may disturb rhythm of heart beat and may lead to

Minimal distance between the implants or an implant, What should be the min...

What should be the minimal distance between the implants or an implant and a natural tooth. The minimal distance between the implant and the adjacent tooth should be 1.5 -2 mm

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