2. A) Keratinization involves skin cells moving to the surface that have _________________.   A. lost water and changed nuclei   B. lost fat and increased mitochondria   C. lost the stratum basale   D. lost the stratum lucidum and increased the amount of protein, keratin   E. None of the above B) The layer of the skin composed of dense connective tissue that has projections known as papillae is the ____________.   A. stratum corneum   B. hypodermis   C. stratum basale   D. dermis C) Sebaceous glands are located in the __________, are associated with the __________, and secrete ________.   A. epidermis, hair follicle, oil   B. papillary layer, skin cells, oil   C. dermis, hair follicle, sebum   D. epidermis, hair follicle, sebum   E. dermis, nail bed, sebum D) Which is not the function of the dermis layer?   A. Regulates temperature by sweat glands and blood vessel dilation or constriction   B. Responds to pressure, pain, and temperature with the use of sensory nerves   C. Produces Vitamin D upon exposure to UV light   D. Covers and protects the epidermis   E. None of the above E) The strength of the dermis is mainly a result of the _____.   A. thickness of the layers   B. distribution of elastic fibers   C. presence of collagen fibers   D. amount of blood vessels   E. keratinization of the skin F) Cyanosis is a condition caused by ___________.   A. increased blood flow to the skin   B. exposure to ultraviolet light   C. consuming large amounts of carotene   D. a decrease in blood oxygen   E. albinism G) Hair and nails are modifications of the _______.   A. melanocytes   B. epidermis   C. sudoriferous glands   D. hypodermis   E. dermis H) The blood vessels nourishing a hair follicle are located in the ______________.   A. cortex of the hair   B. papilla of the hair   C. matrix of the cells   D. arrector pili   E. cuticle of the hair I) Production of new hairs is the responsibility of the __________.   A. cuticle of the hair   B. cortex of the hair   C. arrector pili   D. papilla of the hair   E. matrix of cells J) Which of the following is a nail bed component?   A. Nail papilla   B. Lunula   C. Medulla   D. All of the above   E.

In third-degree (full-thickness) burns, both the epidermis and the dermisare destroyed. Which of the following conditions does not occur as aresult of a third-degree burn?a. dehydration (increased water loss)b. increased likelihood of infectionc. increased sweatingd. loss of sensation in the burned areae. poor temperature regulation in the burned area

1a.How many layers of epidermis are found in thin skin? b. What are the most numerous sudoriferous glands called - that are found in most skin? c. What is the smooth muscle associated with every hair follicle called? d. What is the outer layer of hair called that is made up of dead keratinized cells?

After a skin injury, the body initiates a wound-healing response. The first step of this response is the formation of a blood clot to stop bleeding. Which of the following would be the next response? a. increased production of melanin by melanocytes b. increased production of connective tissue C. an increase in Pacinian corpuscles around the wound d. an increased activity in the stratum lucidum

The thinnest density of hair in the supercilium is located in a. the head b. the tail c. the body d. the superior margin

The skin dermis is composed of ________________________.   A. elastic connective tissue   B. fibrocartilage tissue   C. adipose connective tissue   D. dense irregular connective tissue

Nails, hair, sweat and sebaceous glands are all derived from the epidermis  A. True B. False

The stratum spinosum or prickly layer contains cells that appear spikey, known as _____________. a. prekeratin filaments b. melanocytes c. keratinocytes d. desmosomes e. keratin

2. The hands and feet experience high amounts of abrasion. It contains so called thick skin having five epidermal strata.  Which epidermal layer in thick skin consists of dead keratinocytes?  a. stratum corneum b. stratum spinosum c. stratum granulosum d. a and b e. a, b, and c

The cells in a hair follicle that are responsible for forming hair are the a. hair papilla cells. b. matrix cells. c. medullary cells. d. cortex cells.