ch 6integumentary system
Within the skin, the epidermis is _____ to the dermis.
superficial
What tissues are present within the subcutaneous layer?
Adipose tissue Loose connective tissue
_______ sweat glands have ducts that empty into hair follicles while ______ sweat glands secrete their products via ducts to the surface of the skin.
Apocrine; eccrine
Indicate the changes that occur when body temperature drops
Decreased activity of sweat glands Vasoconstriction of dermal blood vessels
Which three of the following factors can affect skin color?
Diet Blood oxygenation Blood perfusion
What stratum of the epidermis is composed primarily of dead cells that eventually slough off?
Stratum corneum
Drugs can be delivered through the skin by several routes. Indicate these routes.
Subcutaneous Transdermal Intramuscular
What items describe the basement membrane of the skin?
The boundary between the dermis and epidermis Anchors the stratum basale to the dermis
Comparing the dermis to the epidermis, indicate the true statements.
The dermis is vascular, but the epidermis lacks blood vessels. The dermis is composed of several types of tissue, but the epidermis is composed of one type.
The integumentary system consists of which features?
The skin Sebaceous and sweat glands Hair and nails
What is the function of a keratinocyte?
To produce a waterproofing protein
List the epidermal layers of thin skin from the most superficial to deepest layer.
corneum granulosum spinosum basale
The epidermis of thick skin contains an extra layer called the stratum
lucidum
Holocrine glands that secrete an oily mixture into the hair follicles through ducts are called
sebaceous
The epidermis is composed of ______, while the dermis is made up mostly of ______.
stratified squamous epithelium; connective tissue