|Nerve||axillary nerve, medial cord, posterior cord, lateral cord|
|Lymph||axillary lymph nodes|
In humans, the formation of body odor happens mostly in the armpit. These odorant substances have been suggested by some to serve as pheromones which play a role related to mating, however, this is a controversial topic within the scientific community. The underarm regions seem more important than the genital region for body odor which may be related to human bipedalism.