It is a bundle of smooth muscle fibres which attach to several hair folicles that contract involuntarily during stresses such as cold, fear, etc. and produces ineffecitve goosebumps.
Also known as the tailbone, it is the final segment of the vertebral column, and is also a part of the weight-bearing tripod structure which acts as a support for a sitting person, but this is its only function.
It is a set of muscles that in some mammals allows the ear to move in the direction of sound, but in humans it is only capable of wiggling the ear.
Wisdom teeth have been rendered a painful nuisance, but up to 35% of people no longer develop wisdom teeth.
Found in the nose, this non-funtional specialized sensory system is an auxiliary olfactory organ that can detect pheromones and scents, only triggered by aggression.
While eyebrows serve to keep sweat from the eyes, and male facial hair serve as attraction and distinction, other body hair has not function.
It is a tiny fold of skin toward the top of each ear found in 10% of all humans.
Found next to the tearduct is the remnant of a third eyelid. This is called the plica semilunaris. This membrane may have been used to sweep debris out of the eye.
