Crook and her team undertook two separate investigations to reconstruct the arrangements and classifications of nerves running down the arms of Bock's pygmy octopus (Octopus bocki) specimens.

These include the nerves ... the chest area or under the arm," says O'Hare. Pain often occurs in both armpits and may radiate from the breasts. Intertrigo (sweat rash) is a term used to describe ...