A&P Chp. 6

The skin, as an organ, is also referred to as

• epidermis

• cutaneous membrane

• stratum corneum

• epithelium

The skin along with structures such as nails, hair, and sweat glands are part of the

• integumentary system

• dermis

• subcutaneous tissue

• exoskeleton

Injections that are administered into the tissues of the skin are called

• subcutaneous

• intradermal

• intramuscular

• hypodermic

In the genetic disease called ichthyosis, the skin is rough, brown, and scaly because the uppermost layer cannot peel off as easily as it should. What layer of the skin is affected in this disorder?

• epidermis

• basement membrane

• dermis

• subcutaneous layer

What happens to keratinocytes as they are pushed from the deeper layers of the epidermis toward the surface?

• They continue to divide.

• They take on more pigment.

• They die.

• They become dermal cells.

What tissue type forms most of the dermis?

• stratified columnar epithelium

• adipose tissue

• stratified squamous epithelium

• dense irregular connective tissue

Nerve fibers scattered throughout the dermis are associated with what structures?

• hair, melanocytes, and keratinocytes

• bone, tendons, and muscles

• adipose and reticular tissue

• muscles, glands, and sensory receptors

What are dermal papillae?

• bundles of dense connective tissue fibers

• cluster of cells that produce hair

• site where nails are anchored to fingers or toes

• projections of dermal tissue between epidermal ridges

The ______is typically thicker than the ______.

• stratum basale; stratum corneum

• papillary layer; reticular layer

• dermis; epidermis

• skin of the forearm; skin of the palm of the hand

Normally, melanin is confined to what area of the skin?

• epidermis

• basement membrane

• dermal papillae

• stratum corneum