Explain the components of heart sounds, Biology

Explain the Components of heart sounds?

The first major component is associated with mitral valve closure (M 1) and is due to abrupt arrest of the leaflet motion when the cusps become fully closed. It is most prominent at cardiac apex when apex is occupied by LV. The second component is thought to be due to closure of Tricuspid valve (Tl). As the mitral tricuspid closure occur 0.02 - 0.03 second apart, it is very difficult to distinguish the two. When heard, it is confined to the lower left sternal edge. Though not heard but phonocardiogram record a third component. A low frequency sound( A) following length M1 and T, and coinciding with maximum opening of aortic cusps. The usual Al occurs 0.04-0.06 second after MI. When S 1 is split, its first component is normally louder.

Posted Date: 5/8/2013 2:44:34 AM | Location : United States

Related Discussions:- Explain the components of heart sounds, Assignment Help, Ask Question on Explain the components of heart sounds, Get Answer, Expert's Help, Explain the components of heart sounds Discussions

Write discussion on Explain the components of heart sounds
Your posts are moderated
Related Questions
Q. What are the three stages into which the cell respiration is divided? The three stages of aerobic cell respiration are glycolysis, Krebs cycle and respiratory chain also kno

Eczema and Dermatitis: Eczema and Dermatitis are a common problem  all over the world. Their incidence is 2-3  per cent of all medical problems seen  in practice (about 30 per

why roots grow downword

describe general characters and classification of amphibia in brief

State the term - Viral Infections A virus is an encapsulated aggregate of nucleic acid that may be made of either DNA or RNA. Some viruses, such as those causing poliomyelitis

#question.what are the reason that arthropodans are abundant in nature.

Which of the following leads to the formation of atherosclerosis plaques? -uptake of oxidized LDL particles by macrophase -non specific interactions between LDL particles

Q. How does vitamin C act in the body? What is the harm caused by insufficiency of vitamin C? Why was this deficiency also known as "sailors' disease"? Vitamin C, or ascorbic a

Explain Protein Deficiencies in Nutritional Care? A depleted amino acid pool leads to poor wound healing (dehiscence), delayed healing of fractures, anaemia, depressed pulmonar