Human Biology: Concepts and Current Issues (8th Edition)
8th Edition
ISBN: 9780134042435
Author: Michael D. Johnson
Publisher: PEARSON
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Textbook Question
Chapter 18, Problem 4TY
Which of the following statements regarding skin cancer is true?
a. Chemical carcinogens contribute more to the development of skin cancer than UV radiation.
b. Sun exposure during childhood does not impact the development of skin cancer later in life.
c. Tanning booths enable safer tanning because the UV exposure from lamps is not likely to contribute to the development of skin cancer.
d. Skin cancer can develop from cumulative sun exposure, even in the absence of sunburns.
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Why do statistics show that skin cancer fatality rates are higher among African Americans than other ethnic groups?
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?
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Chapter 18 Solutions
Human Biology: Concepts and Current Issues (8th Edition)
Ch. 18 - Prob. 1QCCh. 18 - Prob. 2QCCh. 18 - Prob. 3QCCh. 18 - Compare and contrast a benign tumor and a...Ch. 18 - Prob. 2CRCh. 18 - Prob. 3CRCh. 18 - Explain why we have not yet made much progress...Ch. 18 - Prob. 5CRCh. 18 - Prob. 6CRCh. 18 - Prob. 7CR
Ch. 18 -
8. Describe how tumors are diagnosed.
Ch. 18 - Prob. 9CRCh. 18 - Prob. 10CRCh. 18 - Prob. 1TYCh. 18 - Prob. 2TYCh. 18 - Prob. 3TYCh. 18 -
4. Which of the following statements regarding...Ch. 18 - Prob. 5TYCh. 18 - Prob. 6TYCh. 18 - Which of the following cancer treatments would be...Ch. 18 - Prob. 8TYCh. 18 - Prob. 9TYCh. 18 -
10. The ABCD rule refers to the evaluation of:
a....Ch. 18 - The most common cause(s) of cancer deaths in the...Ch. 18 - Which of the following statements about breast...Ch. 18 - Prob. 13TYCh. 18 - Prob. 14TYCh. 18 - Prob. 15TYCh. 18 -
1. Why do you suppose that the death rate from...Ch. 18 - Prob. 2AWKCh. 18 - Prob. 3AWKCh. 18 - Prob. 4AWKCh. 18 - Common therapies for cancer include chemotherapy...Ch. 18 - The first cancer that can be nearly completely...
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- A 56 y/o woman has a history of extensive exposure to ultraviolet radiation from both the sun and artificial tanning sources( tanning lights&beds) since childhood. The excessive wrinkling observed is caused primarily by which one of the the following effects of UV rays on the skin? A)damaged elastic fibers B)dilated follicles with plugged orifices C)increased size and activity of melanocytes D)thickening of the the stratum Cornell E)vascular sclerosis of dermal blood vesselsarrow_forwardPigmentation of skin is due to: A. lymphocytes B. monocytes C. leucocytes D. melanocytesarrow_forwardA. Dyan at a young age is attracted to tattoo. So in her 20th year she undergone tattoing. Liza her mother reacted about it worriedly. However, she reassures her mom that the tattoo she received at the tattoo parlor will eventually disappear. Her perspective about tattoo is based on what she learned in her biology class that skin cells are shed every four weeks. Is Dyan correct? B. Seri has stretch marks on her abdomen, yet she states that she has never been pregnant, Is this possible? C. Patricia has an ingrown toenail. It is a condition in which the nail grows into the nail fold. Would cutting the nail away from the nail fold permanently correct this condition? Why or Why not?arrow_forward
- 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…arrow_forwardIn general, skin cancers ________. a. are easily treatable and not a major health concern b. occur due to poor hygiene c. can be reduced by limiting exposure to the sun d. affect only the epidermisarrow_forwardExplain how skin cancer is linked to sun exposure.arrow_forward
- The likelihood of developing nonmelanoma skin cancers is dependent on all of the following factors, EXCEPT:A. stratosphere ozone concentration.B. latitude in which you live.C. ethnicity and skin color.D. longitude in which you live.Reset SelectionMark for Review What’s This?arrow_forwardWhich of the following statements relating to burns is false? a. it is tissue damage caused by extreme heat b. first-degree burns have damage only in the epidermis c. second-degree burns include damage in the upper dermal layer d. third-degree burns exhibit damage in the entire skin thickness e. None of the abovearrow_forwardConcerning hair growth,a. hair falls out of the hair follicle at the end of the growth stage.b. most of the hair on the body grows continuously.c. cutting or plucking the hair increases its growth rate and thickness.d. genetic factors and the hormone testosterone are involved in “patternbaldness.”e. eyebrows have a longer growth stage and resting stage thanscalp hair.arrow_forward
- Squamous cell carcinoma arises from: a. keratinocytes in stratum corneum. b. keratinocytes in stratum basale. c. keratinocytes in stratum spinosum. d. melanocytesarrow_forwardDescribe the three main types of cancerous skin tumors?arrow_forwardWhich of the following is not a function of the subcutaneous layer of skin? a. Stores fat that can be used for food b. Helps the body in temperature regulation c. Protects the underlying tissue by acting as a "shock absorber" d. Produces melanin to protect skin from the ultraviolet rays of the sun The lower right abdominopelvic quadrant includes all of the: a. right epigastric region b. right lumbar region c. right iliac region d. right hypochondriac region An important function of the cell membrane is: a. the production of energy b. aiding in protein formation c. acting as an "identification tag" for the cell d. none of the abovearrow_forward
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