Although malignant melanoma accounts for only approximately 5% of all skin cancers, 90% of skin cancer deaths are due to metastasis and resistance to chemotherapy. Which of the following would be associated with this horrible diagnosis? O a. metastasis O b. goblet cell O c. stratum basale all of the above O a+ c, but not b ◄ Previous Next ->

Although malignant melanoma accounts for only approximately 5% of all skin cancers, 90% of skin cancer deaths are due to metastasis and resistance to chemotherapy. Which of the following would be associated with this horrible diagnosis? O a. metastasis O b. goblet cell O c. stratum basale all of the above O a+ c, but not b ◄ Previous Next ->

Anatomy & Physiology

1st Edition

ISBN:9781938168130

Author:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble

Publisher:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble

Chapter5: The Integumentary System

Section: Chapter Questions

Problem 24RQ: Squamous cell carcinomas are the second most common of the skin cancers and are capable of...

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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
Harry, age 55, went to a health fair and had a PSA test. The test resultsand subsequent examinations indicated prostate cancer. Harry wasgiven radiation treatments and chemotherapeutic drugs. These drugsadversely affect cancer cells by interrupting mitosis, but they alsointerrupt mitosis in normal cells. Describe the probable effect of chemotherapy on Harry’s epidermis, hair, nails, skin pigmentation, andsebaceous glands.
Squamous cell carcinomas are the second most common of the skin cancers and are capable of metastasizing if not treated. This cancer affects whichcells?a. basal cells of the stratum basaleb. melanocytes of the stratum basalec. keratinocytes of the stratum spinosumd. Langerhans cells of the stratum lucidum
Do skin cancers originate in the stratum cornerman cells? Defend your answer.
In pigmented skin, where would you find the melanin granules? O They accumulate on the apical side of the nuclei in the keratinocytes O They accumulate in the dermis O They accumulate in the papillary layer O Pigmented skin does not contain melanin granules
ne definitións below with the correct term: rickets A. peptide that promotes cell division in basal cells and accelerate production of keratin to stimulate epidermal development or repair В. vitiligo C. albinism skin pigmentation condition with normal distribution of melanocytes, but absence of melanin * production D. melanoma condition where legs are curved due to lack of vitamin D3 epidermal growth fa E. more severe form of skin cancer and can metastasize quickly carotene F. skin pigmentation condition as a result of sustained reduction in oxygen level G. yanosis
Photoaging is a major factor in the senescence ofa. the integumentary system.b. the eyes.c. the nervous system.d. the skeletal system.e. the cardiovascular system.
1. Complete the table below with information about the different types of cells of the epidermis. Cell Type 1. Brief description of unique cell features Found in which Abundance of layer(s) of epidermis? Name all that apply cells Keratinocyte Stratum basale • Straturn Cells that mony facture Keratin. Linked by numerous desmosomes. SPISOSUM Melanocyte Protein melanin SKIN piogment rangines prom o rovge. red to brown-black. estratum basale Dendritic cells • Stratum Spinosum Pralect the skin ond deeper tissues From pathogens. Tactile/Merkel Cells Sensory receplars Delect light Houch and diffentiale Sapes ond Hexture. ostratum basale
Why are there no skin cancers that originate from stratum corneum cells?
Skin cancer is epidemic, but diverse. Explain the anatomical differences between the cells that give rise to melanoma, basal cell carcinoma, and squamous cell carcinoma.
Melanocytes and keratinocytes work together in protecting the skin from UV damage when keratinocytes ________ a.maintain the appropriate pH in order for the melanocyte to synthesize melanin granules. b.provide the melanocyte with nutrients necessary for melanin synthesis. c.maintain the appropriate temperature so the product of the melanocyte will not denature. d.accumulate the melanin granules on their superficial portion, forming a UV-blocking pigment layer.
Squamous cell carcinoma arises from: a. keratinocytes in stratum corneum. b. keratinocytes in stratum basale. c. keratinocytes in stratum spinosum. d. melanocytes