Crack - incomplete infringement of an integrity of integuments and mucous membranes, bones.
Skin cracks are often formed in areas exposed to constant friction, pressure, or abnormal areas. Frequent fissures on the palms and heels, interdigital spaces. Cracks are a place where it can grow fungus.
Cracked bones there is a link between the parts of the bone and, unlike fractures (see), there is no divergence surfaces adjacent to the line of the cracks.
Cracked nipples - see Mamma, Cracked rear passage - see the anus.