Each hair grows in an oblique epithelial tube called a _____________.
The holocrine glands of the skin secrete _________.
Dead keratinized cells form the stratum ___________ of the skin.
A deficiency of oxygen in the blood can give rise to a skin color called _________.
The fingernails are composed of the protein ___________.
Perspiration creates a protective low-pH film on the skin called the ________.
Sweat is expelled by contractions of the ________ cells in the base of the gland.
Axillary sweat glands are in a class called ________ glandsafter a former, mistaken belief about their mode of secretion.
Earwax is also called __________.
Hair of the eyebrows.
A guard hair.
A yellow pigment sometimes found in the skin.
Principal protein of the fingernails