<P> It has been recognized that the cytoarchitecture of pancreatic islets differs between species . In particular , while rodent islets are characterized by a predominant proportion of insulin - producing beta cells in the core of the cluster and by scarce alpha , delta and PP cells in the periphery , human islets display alpha and beta cells in close relationship with each other throughout the cluster . </P>
<P> It has been recognized that the cytoarchitecture of pancreatic islets differs between species . In particular , while rodent islets are characterized by a predominant proportion of insulin - producing beta cells in the core of the cluster and by scarce alpha , delta and PP cells in the periphery , human islets display alpha and beta cells in close relationship with each other throughout the cluster . </P>
which cells with in the islets of langerhans secrete insulin
which cells with in the islets of langerhans secrete insulin
beta cells
beta cells