“…The accessory heads express a wide spectrum of possible origins. A total of 69 studies (9054 upper limbs) provided detailed description of the various origin sites (Adachi, 1909; Agarwal & Gopal, 2020; Al‐Kushi, 2013; Asvat et al, 1993; Avadhani & Chakravarthi, 2012; Bagoji et al, 2014; Ballesteros et al, 2014; Bharambe et al, 2015; Chandrupatla & Sultana, 2016; Chauhan, 2010; Cheema & Singla, 2011; Chitra & Kalaiyarasi, 2016; Cucca et al, 2010; da Silva, 2016; da Silva Leal, 1926; Duran & Arquez, 2016; Gheno et al, 2010; Gindha et al, 2015; Greig et al, 1952; Guerrero et al, 2018; Gupta & D'Souza, 2014; Gupta et al, 2020; Ilayperuma et al, 2011; Kervancioglu & Orhan, 2011; Khaledpour, 1985; Kopuz et al, 1999; Kosugi et al, 1992; Kumar et al, 2008; Kumar et al, 2012; Kumar & Baidya, 2018; Le Double, 1897; Lee, 2013; Lingaswamy et al, 2015; Manoj et al, 2012; Mantraratnam & Bhattam, 2016; Morampuri et al, 2015; Mori, 1964; Nalluri et al, 2016; Nasr & Hussein, 2013; Nayak et al, 2006; Neto et al, 1998; Patel et al, 2016; Pathak et al, 2016; Poudel & Bhattarai, 2009; Radhika et al, 2017; Rai et al, 2007; Ravi et al, 2020; Rincon et al, 2002; Rodriguez‐Niedenführ et al, 2003; Ruiz et al, 2017; Salve et al, 2013; Sandeep et al, 2012; Sato, 1969; Sawant et al, 2012; Schwerdtf...…”