Tags: Anatomical Structure.
The human earlobe is composed of tough areolar and adipose connective tissues lacking the firmness and elasticity of the rest of the pinna (the outer edge of the ear). Since the earlobe does not contain cartilage it has a large blood supply and may help to warm the ears and maintain balance. However earlobes are not generally considered to have any major biological function. The earlobe contains many nerve endings and for some people is an erogenous zone.
