it was found ( 1 ) that a temperature gradient stimulates crossing of the meniscus toward higher temperatures , ( 2 ) that only a portion of the cells reverses direction of locomotion in response to reversal of the temperature gradient after the cells have traversed the meniscus , and ( 3 ) that the distribution of cells in the migration space depends on cell concentration , suggesting that the dynamics of pmn locomotion depend on cell-cell interactions .
C1178969
portion
C0007634
cell