CBSE Class 10 Answered
what are valves?????
Asked by pooja anand | 13 Mar, 2012, 08:22: PM
Expert Answer
Valves are flap-like structures present in heart that allow blood to flow in one direction. The valves control the flow of blood through the heart by opening and closing during the contractions of the heart. The opening and closing functions of the valves are controlled by pressure differences generated within the heart, as well as some muscles located within the heart. The heart has two kinds of valves, atrioventricular and semilunar valves.
- The two atrioventricular (AV) valves, which are between the atria and the ventricles, are the mitral valve and the tricuspid valve.
- The two semilunar (SL) valves, which are in the arteries leaving the heart, are the aortic valve and the pulmonary valve.
Thus there are four valves in all.
Answered by | 14 Mar, 2012, 07:48: AM
Application Videos
Concept Videos
CBSE 10 - Biology
Asked by kunchalasrinivasaraosrinivasar | 23 Apr, 2024, 07:40: PM
ANSWERED BY EXPERT
CBSE 10 - Biology
Asked by bgmigaurav7318 | 08 Apr, 2024, 01:46: PM
ANSWERED BY EXPERT
CBSE 10 - Biology
Asked by jayeshsah1995 | 04 Mar, 2024, 12:01: PM
ANSWERED BY EXPERT
CBSE 10 - Biology
Asked by nsubhashree54 | 24 Feb, 2024, 11:08: AM
ANSWERED BY EXPERT
CBSE 10 - Biology
Asked by sarmabankupalli9 | 02 Jan, 2024, 08:19: PM
ANSWERED BY EXPERT
CBSE 10 - Biology
Asked by pavanimullu123 | 26 Dec, 2023, 07:17: PM
ANSWERED BY EXPERT
CBSE 10 - Biology
Asked by jitendranathsingh331 | 26 Nov, 2023, 06:17: PM
ANSWERED BY EXPERT
CBSE 10 - Biology
Asked by waccstudies123 | 08 Oct, 2023, 02:10: AM
ANSWERED BY EXPERT
CBSE 10 - Biology
Asked by 09.10bjanvhijadhav | 16 Sep, 2023, 11:58: PM
ANSWERED BY EXPERT
CBSE 10 - Biology
Asked by devy64469 | 03 Sep, 2023, 09:25: PM
ANSWERED BY EXPERT