Anat Lab Final BB Extra credit quiz skin
From the basement membrane outward, the strata of the epidermis (thin skin) are
basale, spinosum, granulosum, corneum
The two major regions of the dermis are the superficial ____________ layer and the deeper ____________ layer.
papillary; reticular
Which integumentary excreting glands are distributed over most of the body surface?
sebaceous and merocrine sweat glands
Which epidermal layer is found in thick skin only?
stratum lucidum
Apocrine sweat glands occur in all of the following locations except
the palms
The terms thick and thin skin refer to the relative thickness of the
epidermis only
Limited exposure to ultraviolet radiation is useful because it
helps epidermal cells convert a steroid to vitamin D3
Both hair and nails are composed mainly of dead cells packed with
keratin
What are the most abundant cells found in the epidermis?
keratinocytes
Which epidermal pigment protects nuclear DNA by absorbing potentially damaging ultraviolet radiation?
melanin