cleavage plane


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cleavage plane

1 the area in a fertilized ovum where cleavage takes place; the axis along which any cell division occurs.
2 any plane within the body where organs or structures can be separated with minimal damage to surrounding tissue.
References in periodicals archive ?
During the dissection, we found a clear cleavage plane between the kidney upper pole and the supernumerary kidney.
6c, d), the site of their plus end interaction coinciding with and defining the division cleavage planes and boundaries of domains.
Meiotic cytokinesis in bryophytes typically follows precocious infurrowing of the cytoplasm, which is itself essentially a plant-like process involving differential growth of the cytoplasm and/or increased deposition of sporocyte wall material in the cleavage planes.
I have discovered two mechanisms that prevent aneuploidy: the tether-based acentric segregation and the elongation of the cell that clears chromatids from the cleavage plane.
But they have cleavage planes that can lead to cracks.
many secondary intergranular cracks, cleavage planes and a propagation of fracture along the slip lines.
Sands with poor chemical structure or poor cleavage planes will fracture and be removed, leaving the strongest and best structured sand grains to be reused.
Preferential deposition of additional sporocyte wall material in the future cleavage planes contributes to lobing of the cytoplasm and further defines the quadripolarity.
This implies that any movement across these cleavage planes, and indeed any associated deformation, involved only bedding-parallel motion.
b]) are present and where bedding is defined by siltstone-sandstone layers, no offsets are visible congruent with these cleavage planes.
This can be attributed in part, he explained, to the elimination (during recycling) of sand grains with poor chemical structure and weak cleavage planes caused by the thermal shock of the casting process and the mechanical shock of shakeout, lump-breaking and scrubbing.