anatomy 101 chapter 5
3) Keratinocytes are the predominant cells in the: A) epidermis. B) papillary region of the dermis. C) reticular region of the dermis. D) subcutaneous layer. E) All of the above are correct
A) epidermis.
ACNE A) is an inflammation of sebaceous glands. B) is caused by viruses attacking the cells of the sebaceous glands. C) is more commonly associated with the elderly. D) is usually found in sebaceous glands inhibited by androgen hormones. E) is never associated with permanent scarring of the epidermis.
A. is an inflammation of sebaceous glands
Ceruminous glands A) produce ear wax. B) produce milk. C) produce sweat. D) produce sebum. E) produce ear wax and sebum.
A. produce ear wax
Which of the following is NOT true to nails? A) They consist of a free edge, a nail body and a nail root. B) They are plates of lightly packed, Hard, nonkeratinized dermal cells. C) Their thick lunula appears white because it obscures the underlying vasculature. D) Their growth occurs from the nail matrix deep to the nail root. E) They help us grasp and manipulate objects.
B) They are plates of lightly packed, Hard, nonkeratinized dermal cells.
THE EPIDERMIS A) is the deepest layer of the cutaneous membrane. B) is composed of stratified squamous epithelium. C) is composed of areolar tissue. D) is highly vascular. E) contains adipocytes and collagen fibers
B) is composed of stratified squamous epithelium.
Which of the following is NOT a function of the skin? A) regulates body temperature B) participates in synthesis of vitamin A C) serves as the first and foremost barrier to disease D) excretes some waste products E) house sensory receptors
B) participates in synthesis of vitamin A
A pharmaceutical wants to create new medications that may be administered transdermally. Based on your knowledge on what skin the can absorb, which of the following products is a good candidate for transdermal delivery? A) a water-soluble vitamin B) a rehydration fluid C) a lipid-soluble analgesic related to lidocaine D) a nutrient cocktail of sugars and amino acids E) All of these would be good product candidates.
C) a lipid-soluble analgesic related to lidocaine
The dermis A) is superficial to the epidermis. B) is deep to the subcutaneous layer. C) contains fibroblasts, macrophages, and a few adipocytes. D) is avascular and poorly innervated. E) is divided into areolar and dense regular layers.
C) contains fibroblasts, macrophages, and a few adipocytes.
The major regions of a hair shaft include all of the following except ________. A) medulla B) cortex C) external root sheath D) cuticle
C) external root sheath
What does the skin excrete? A) heat B) water C) salt D) urea and ammonia E) All of these are excreted by the skin.
E all of these are excreted by the skin
WHich of the following is NOT considered an accessory structure of the skin? A) hair B) sweat glands C) sebaceous glands D) nails E) Merkel's disc
E. Merkel's disk
the dermis A) contains no blood vessels. B) functions as padding and insulation. C) is divided into three distinct layers. D) is responsible for most of the skin's structural strength. E) does not contain connective tissue.
is responsible for most of the skin's structural strength
Which of the following functions is associated with the skin? A) fat production B) vitamin C production C) regulation of body pH D) protection against ultraviolet radiation of the sun E. vitamin A production
protection against UV radiation of the sun
Barney sat on a hot camp stove while on a camping trip. The burn was painful and blistered. His wound was what type of burn? first degree second degree third degree fourth degree fifth degree
second degree
Which of the following is present in thick skin but not in thin skin? A) stratum germinativum B) stratum lucidum C) stratum corneum D) stratum granulosum E) dermal papillae
stratum lucidum
1) All of the following are part of the integumentary system EXCEPT the A) epidermis B) dermis C) subcutaneous layer/hypodermis D) hair and nails E) sebaceous and sweat glands
subcutaneous layer/hypodermis