▁also ▁directed ▁towards ▁finding ▁solutions ▁to ▁some ▁of ▁the ▁human ▁body ▁related ▁dise ases ▁and ▁dis orders . ▁The ▁useful ness ▁of ▁the ▁subject ▁can ▁also ▁be ▁understood ▁by ▁seeing ▁the ▁use ▁of ▁Bio fl uid ▁Dynam ics ▁in ▁the ▁areas ▁of ▁phys i ology ▁in ▁order ▁to ▁explain ▁how ▁living ▁things ▁work ▁and ▁about ▁their ▁mot ions , ▁in ▁developing ▁an ▁understanding ▁of ▁the ▁orig ins ▁and ▁development ▁of ▁various ▁dise ases ▁related ▁to ▁human ▁body ▁and ▁diagn osing ▁them , ▁in ▁finding ▁the ▁c ure ▁for ▁the ▁dise ases ▁related ▁to ▁card i ov asc ular ▁and ▁pul mon ary ▁systems . ▁ ▁History ▁of ▁Bio ▁Fl uid ▁Dynam ics ▁▁ ▁The ▁History ▁of ▁Bio - Fl uid ▁Dynam ics ▁may ▁be ▁considered ▁very ▁old ▁d ating ▁back ▁to ▁ 2 7 0 0 - 2 6 0 0 ▁BC ▁when ▁for ▁the ▁first ▁time ▁a ▁written ▁document ▁on ▁circul ation ▁of ▁blood ▁and ▁theories ▁of ▁Chinese ▁medicine ▁called ▁" Internal ▁Class ics " ▁was ▁written ▁by ▁the ▁Chinese ▁em peror ▁Hu ang ▁ti ▁also ▁called ▁as ▁the ▁yellow ▁em peror . ▁The ▁Most ▁notable ▁names ▁related ▁to ▁the ▁field ▁of ▁bio fl uid ▁Dynam ics ▁are ▁of ▁ ▁William ▁Har vey , ▁Jean ▁Louis ▁Marie ▁Po ise u ille , ▁and ▁Otto ▁Frank . ▁In ▁ 1 6 2 8 , ▁Har vey ▁published , ▁" An ▁an atom ical ▁study ▁of ▁the ▁motion ▁of ▁the ▁heart ▁and ▁of ▁the ▁blood ▁of ▁animals ." ▁This ▁was ▁the ▁first ▁publication ▁in