Integumentary System Anatomy

The two major components of the integumentary system are

• the cutaneous membrane and accessory structures

• the epidermis and hypodermis

• hair and the nails

• dermis and the subcutaneous layer

Beginning at the basal lamina and traveling toward the free surface, the epidermis includes the following layers

• corneum, lucidum, granulosum, spinosum, germinativum

• granulosum, lucidum, spinosum, germinativum, corneum

• germinativum, spinosum, granulosum, lucidum, corneum

• lucidum, grandulosum, spinosum, germinativum, corneum

The protein that permits stretch and recoil of the skin is

• collagen

• melanin

• keratin

• elastin

The two major components of the dermis are the

• superficial fascia and cutaneous membrane

• epidermis and hypodermis

• papillary layer and reticular layer

• stratum germinativum and stratum corneum

The accessory structures of the integument include the

• blood vessels, glands, muscles, and nerves

• Merkel cells, lamellated corpuscles, and tactile corpuscles

• hair, skin and nails

• hair follicles, nails, sebaceous glands, sweat glands

The two types of exocrine glands in the skin are

• merocrine and sweat glands

• sebaceous and sweat glands

• apocrine and sweat glands

• eccrine and sweat glands

The stratum corneum of the nail root, which extends over the exposed nail, is called the

• hyponychium

• eponychium

• cuticle

• cerumen

The portion of the hair follicle where cell divisions occur is the

• shaft

• matrix

• root hair plexus

• cuticle

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The primary function of sensible perspiration is to

• get rid of wastes

• protect the skin from dryness

• maintain electrolyte balance

• reduce body temperature

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The cutaneous plexus and papillary plexus consists of

• a network of arteries providing the dermal blood supply

• a network of nerves providing dermal sensations

• specialized cells for cutaneous sensations

• gland cells that release cutaneous secretions