Heart is externally covered by two layers of pericardium . Pericardial space is formed between parietal and visceral layers of pericardium . It is a narrow space which is normally lubricated with per… more →
Dr.S.Venkatesan MD.wrote 1 year ago: Heart is externally covered by two layers of pericardium . Pericardial space is formed between pari … more →