<P> In humans , a single transverse palmar crease is a single crease that extends across the palm of the hand , formed by the fusion of the two palmar creases ( known in palmistry as the `` heart line '' and the `` head line '' ) and is found in people with Down syndrome . However , it is not an indication that a person with single transverse palmar crease has to have Down syndrome . It is also found in 1.5 % of the general population in at least one hand . </P>
<P> In humans , a single transverse palmar crease is a single crease that extends across the palm of the hand , formed by the fusion of the two palmar creases ( known in palmistry as the `` heart line '' and the `` head line '' ) and is found in people with Down syndrome . However , it is not an indication that a person with single transverse palmar crease has to have Down syndrome . It is also found in 1.5 % of the general population in at least one hand . </P>
deep crease in the palm of the hand
deep crease in the palm of the hand
single transverse palmar crease
single transverse palmar crease