Heart valve chambers are lined with endocardium. Heart valves separate the atria from the ventricles, or the ventricles from a blood vessel. Heart valves are situated around the fibrous rings of the cardiac skeleton. The valves incorporate leaflets or cusps, which are pushed open to allow blood flow and which then close together to seal and prevent backflow. The mitral valve has two cusps, whereas the others have three. There are nodules at the tips of the cusps that make the seal tighter. The pulmonary valve has left, right, and anterior cusps. The aortic valve has left, right, and posterior cusps. The
Heart Like a Wheel (The Human League song) the band after a seven-year gap. Released in the UK in August 1990, "Heart Like a Wheel" reached number 29 in the UK, number 32 in the US, and number 64 in Australia. The official music video for the song was directed by Andy Morahan. Heart Like a Wheel (The Human League song) "Heart Like a Wheel" is a song by the British synthpop group The Human League. It is taken from their 1990 album "Romantic?". "Heart Like a Wheel" was the first single to be taken from the Human League's "Romantic?" album of 1990. It was written by former