Protein signalling in heart development Protein signalling in heart development The heart is the first functional organ in a vertebrate embryo. There are 5 stages to heart development. Specification of cardiac precursor cells: The lateral plate mesoderm delaminates to form two layers: the dorsal somatic (parietal) mesoderm and the ventral splanchnic (visceral) mesoderm. The heart precursor cells come from the two regions of the splanchnic mesoderm called the cardiogenic mesoderm. These cells can differentiate into endocardium which lines the heart chamber and valves and the myocardium which forms the musculature of the ventricles and the atria. The heart cells are specified in anterior mesoderm by
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