Basal cell carcinomas are the most common form of skin cancers in the United States and are frequently found on the head, neck, and arms. This cancer affects which cells? A. Langerhans cells of the stratum lucidum B. keratinocytes of the stratum spinosum C. melanocytes of the stratum basale D. basal cells of the stratum basale

Which of the following cancer types arises from the cells of the epidermis that have the highest mitotic activity? O squamous cell carcinoma basal cell carcinoma O malignant melanoma O breast cancer O subdural hematoma Next Previous

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

The hands and feet experience high amounts of abrasion. It contains so called thick skin having 5 epidermal strata.  Which epidermal layer in thick skin consists of non-dead cells? a. stratum corneum b. stratum lucidum c. stratum granulosum d. a and b e. a, b, and c

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

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.

All of the following would have thin skin EXCEPT:     A. scalp   B. forehead   C. soles of feet   D. back of the hand

Use the list below to determine the correct terms. Keratinocytes start producing A. Shaft ,which makes our skin tough and water resistant, and ,which promotes the dehydration of skin cells. The reticular layer within our B. Hair bulb, hair papilla ,contains a network of collagen, reticular, and elastic fibers. The hypodermis, because of its c. Arrector Pili. large amount of acts as an energy reservoir and thermal insulation. The _is the part of the D. Keratin, Keratohyalin hair that protrudes from the epidermis. The deepest portion of the hair E. Dermis follicle is made of ,the inner portion of this structure encompasses the The papilla's surrounding layer isF. Nail root composed of the