Tubercle

From Wikipedia, the free encyclopedia

This view of the cactus Mammillaria marksiana shows its pattern of prominent tubercles, with the spines emanating from each tubercle's tip.

A tubercle is a round nodule, small eminence, or warty outgrowth found on bones, the lip of certain orchids, cacti, or as the small rounded nodule forming the characteristic lesion of tuberculosis.

[edit] Types

• The humerus of the upper arm has two: the greater tubercle and the lesser tubercle. These are situated at the proximal end of the bone, that is the end that connects with the scapula.
• Tubercle of rib
• Genital tubercle

This biology article is a stub. You can help Wikipedia by expanding it.