Human Anatomy
9th Edition
ISBN: 9780135168059
Author: Marieb, Elaine Nicpon, Brady, Patricia, Mallatt, Jon
Publisher: Pearson Education, Inc.,
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Textbook Question
Chapter 5, Problem 7RQ
Use logic to deduce the answer to this question. Given what you know about
skin color and skin cancer, the highest rate of skin cancer on Earth occurs among
(a) blacks in tropical Africa, (b) scientists in research stations in Antarctica, (c)
whites in northern Australia, (d) Norwegians in the United States, (e) blacks in the
United States.
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A condition known as icthyosis hystrix gravior appeared in a boy in the early eighteenth century. His skin became very thick and formed loose spines that were sloughed off at intervals. When he grew up, this “porcupine man” married and had six sons, all of whom had this condition, and several daughters, all of whom were normal. For four generations, this condition was passed from father to son. From this evidence, what can you postulate about the location of the gene?
What unusual phenomenon is at work in each of the following disorders?
Number 10
Chapter 5 Solutions
Human Anatomy
Ch. 5 - What is the meaning of the word roots epi-, sub:...Ch. 5 - Name the �ve major functions of skin.Ch. 5 - Which layers of the epidermis contain living...Ch. 5 - Which functions of skin are performed by cells...Ch. 5 - Prob. 5CYUCh. 5 - Prob. 6CYUCh. 5 - Prob. 7CYUCh. 5 - What types of cells are found in the dermis, and...Ch. 5 - Which pigment causes the large variation in human...Ch. 5 - Prob. 10CYU
Ch. 5 - Prob. 11CYUCh. 5 - Prob. 12CYUCh. 5 - Prob. 13CYUCh. 5 - Prob. 14CYUCh. 5 - Prob. 15CYUCh. 5 - Prob. 16CYUCh. 5 - Prob. 17CYUCh. 5 - Prob. 18CYUCh. 5 - What are the two life-threatening concerns...Ch. 5 - Prob. 20CYUCh. 5 - Prob. 21CYUCh. 5 - Prob. 22CYUCh. 5 - Prob. 1RQCh. 5 - Match each epidermal layer in column B to its...Ch. 5 - The ability of the epidermis to resist rubbing and...Ch. 5 - Skin color is determined by (a) melanin, (b)...Ch. 5 - Prob. 5RQCh. 5 - Prob. 6RQCh. 5 - Use logic to deduce the answer to this question....Ch. 5 - Prob. 8RQCh. 5 - Prob. 9RQCh. 5 - Prob. 10RQCh. 5 - Prob. 11RQCh. 5 - The reticular layer of the dermis (a) provides...Ch. 5 - Match the skin structures in column B with their...Ch. 5 - Thick skin differs from thin skin in (a) the...Ch. 5 - From the list of tissues in column B, identify the...Ch. 5 - Prob. 16RQCh. 5 - Explain why thin skin is also called hairy skin,...Ch. 5 - Prob. 18RQCh. 5 - Why does skin that is exposed to sunlight age so...Ch. 5 - Explain why no skin cancers originate from stratum...Ch. 5 - Explain each of these familiar phenomena in terms...Ch. 5 - Prob. 22RQCh. 5 - List �ve functions of the skin.Ch. 5 - Prob. 24RQCh. 5 - What type of tissue(s) form each of the following...Ch. 5 - Prob. 26RQCh. 5 - Prob. 1CRCAQCh. 5 - Dean, a 40-year-old beach boy, tells you that his...Ch. 5 - Long-term patients con�ned to hospital beds are...Ch. 5 - Carmen slipped on some ice and split her chin on...Ch. 5 - A man got his �nger caught in a machine at the...Ch. 5 - Prob. 6CRCAQCh. 5 - Why are melanomas the most common type of skin...Ch. 5 - What are the harmful effects of UV radiation, and...Ch. 5 - Prob. 9CRCAQ
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- CYSTIC FIBROSIS is an autosomal dominant. It affects both sexes and can skip generations through carriers. A) First statement is true and second statement is false. B) First statement is false and second statement is true. C) Both statements are false. D) Both statements are true.arrow_forwardWhich of the following is a barrier against pathogens provided by the skin? a. low pH b. mucus c. tears d. ciliaarrow_forwardFigure 5.4 If you zoom on the cells at the outermost layer of this section of skin, what do you notice about the cells? Figure 5.4 Epidermis The epidermis is epithelium composed of multiple layers of cells. The basal layer consists of cuboidal cells, whereas the outer layers are squamous, keratinized cells, so the whole epithelium is often described as being keratinized stratified squamous epithelium. LM × 40. (Micrograph provided by the Regents of University of Michigan Medical School © 2012)arrow_forward
- Junctional epidermolysis bullosa (JEB) is a severe skin disorder that results in blisters over the entire body. The disorder is caused by autosomal recessive mutations at any one of three loci that help to encode laminin 5, a major component in the dermal–epidermal basement membrane. Leena Pulkkinen and colleagues described a male newborn who was born with JEB and died at 2 months of age (L. Pulkkinen et al. 1997. American Journal of Human Genetics 61:611–619); the child had healthy, unrelated parents. Chromosome analysis revealed that the infant had 46 normal-appearing chromosomes. Analysis of DNA showed that his mother was heterozygous for a JEB-causing allele at the LAMB3 locus, which is on chromosome 1. The father had two normal alleles at this locus. DNA fingerprinting demonstrated that the male assumed to be the father had, in fact, conceived the child. Q. Assuming that no new mutations occurred in this family, explain the presence of an autosomal recessive disease in the child…arrow_forwardJunctional epidermolysis bullosa (JEB) is a severe skin disorder that results in blisters over the entire body. The disorder is caused by autosomal recessive mutations at any one of three loci that help to encode laminin 5, a major component in the dermal–epidermal basement membrane. Leena Pulkkinen and colleagues described a male newborn who was born with JEB and died at 2 months of age (L. Pulkkinen et al. 1997. American Journal of Human Genetics 61:611–619); the child had healthy, unrelated parents. Chromosome analysis revealed that the infant had 46 normal-appearing chromosomes. Analysis of DNA showed that his mother was heterozygous for a JEB-causing allele at the LAMB3 locus, which is on chromosome 1. The father had two normal alleles at this locus. DNA fingerprinting demonstrated that the male assumed to be the father had, in fact, conceived the child. Q. How might you go about proving your explanation? Assume that a number of genetic markers are available for each chromosome.arrow_forwardA survey of Canadian adult males was performed during the 1980s. 52% of the respondents smoked. The lifetime probability of a smoker getting lung cancer was 17.2%, whereas a non-smoker had a cancer probability of 1.3%. a)What is the conditional probability of a male smoker getting lung cancer? b)Draw a probability tree showing the probability of getting lung cancer conditional on smoking or not smoking. c)Using the tree, calculate the probability of smoking and getting lung cancer d)Show the same calculation as c), but in the format of the general multiplication rule Pr[A and B] = Pr[A] Pr[B|A] e)What is the probability that a male did not smoke and did not get lung cancer? pls help with the following. explain and make sure its 100 % accurate, thanksarrow_forward
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