Examlex
The sacrum is actually the result of five fused sacral vertebrae.
Tactile Corpuscle
A type of mechanoreceptor found in the dermal papillae, particularly sensitive to light touch stimuli.
Arrector Pili Muscle
Small muscles attached to hair follicles in mammals, contraction of these muscles causes the hairs to stand on end, known as "goosebumps."
Sebaceous Gland
A tiny organ located in the skin that produces a lubricating oily substance known as sebum, which is released into the hair follicles to keep both the skin and hair moisturized.
Hair Follicles
Tubular invaginations of the epidermis from which hairs grow and are nourished.