LooseLeaf for Human Anatomy
5th Edition
ISBN: 9781259285271
Author: Michael McKinley Dr., Valerie O'Loughlin, Elizabeth Pennefather-O'Brien
Publisher: McGraw-Hill Education
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Question
Chapter 5, Problem 9MC
Summary Introduction
Introduction:
Touch is one of the five sensations that can be recognized by a person. Other sensations include taste, visual, smell, and hear. The sensory information is transferred to the CNS by peripheral nerves for information processing.
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Which epidermal cell type is responsible for detecting touch sensations? a. keratinocyte b. melanocyte c. tactile cell d. epidermal dendritic cell
Which of the following statements about epidermal cell types is false?
a. Keratinocytes produce the fibrous keratin protein
b. Melanocytes produce the pigment melanin
c. Langerhans cells produce macrophages
d. Merkel cell send information to sensory neurons
e. None of the above
How do melanocytes and keratinocytes work together to protect the skin from UV damage? a. Keratinocytes maintain the proper pH for melanocytes to synthesize melanin granules. b. Keratinocytes provide the melanocyte with nutrients critical for melanin synthesis. c. Keratinocytes maintain the appropriate temperature so the melanin will not denature. d. Keratinocytes accumulate melanin granules to shield the keratinocyte’s DNA.
Chapter 5 Solutions
LooseLeaf for Human Anatomy
Ch. 5 - What are the two major layers of the integument...Ch. 5 - Prob. 2WYLCh. 5 - Why is the stratum spinosum important in...Ch. 5 - Briefly describe the process of keratinization....Ch. 5 - Prob. 5WYLCh. 5 - How do melanocytes help protect the skin?Ch. 5 - Briefly describe the structure of epidermal ridges...Ch. 5 - What is indicated by the lines of cleavage in the...Ch. 5 - Prob. 9WYLCh. 5 - Prob. 10WYL
Ch. 5 - Why does the lunula of the nail have a whitish...Ch. 5 - Prob. 12WYLCh. 5 - Compare and contrast merocrine and apocrine sweat...Ch. 5 - What do sebaceous glands secrete?Ch. 5 - What is the source of new epidermal cells and new...Ch. 5 - Why do skin repair processes take longer as we...Ch. 5 - What is the cause of increased sensitivity to the...Ch. 5 - Match each numbered item with the most closely...Ch. 5 - Prob. 1MCCh. 5 - Prob. 2MCCh. 5 - The sweat glands that communicate with skin...Ch. 5 - Which of the following is not a function of the...Ch. 5 - Prob. 5MCCh. 5 - Which statement is true about melanin and...Ch. 5 - Prob. 7MCCh. 5 - Prob. 8MCCh. 5 - Prob. 9MCCh. 5 - Water loss due to evaporation of interstitial...Ch. 5 - Prob. 1CRCh. 5 - Describe two ways in which the skin helps regulate...Ch. 5 - Prob. 3CRCh. 5 - Prob. 4CRCh. 5 - Prob. 5CRCh. 5 - Prob. 6CRCh. 5 - Describe how the skin is involved in vitamin D...Ch. 5 - Prob. 8CRCh. 5 - Prob. 9CRCh. 5 - Prob. 10CRCh. 5 - Prob. 1DCRCh. 5 - Prob. 2DCRCh. 5 - Prob. 3DCR
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- The hair matrix contains ________. the hair follicle the hair shaft the glassy membrane a layer of basal cellsarrow_forwardWhich of the following cell types is not associated with the epidermis? a. guard cells b. trichomes c. parenchyma d. pavementarrow_forwardCell division occurs in which layer of the epidermis? A. Stratum granulosum B. Stratum lucidum C. Stratum corneum D. Stratum basalearrow_forward
- Epidermal ridges are caused by: a. the epidermal papillae. b. mounds of papillary dermis arranged into dermal ridges. c. gaps between collagen bundles in the reticular layer. d. tight binding of the reticular layer to deeper structuresarrow_forward29. The basal layer is the deepest epidermal layer. Which of the statements about it is incorrect? a. it consists of a row of actively mitotic stem cells b. it contains melanin-producing melanocytes c. it contains epidermal dendritic cells d. it houses the “oldest” keratinocytes e. none of the abovearrow_forwardWhat layer is correctly matched with the tissue that forms it? a. papillary layer of dermis; areolar connective tissue b. subcutaneous layer; dense irregular connective tissue c. reticular layer of dermis; stratified squamous epithelium d. epidermis; dense irregular connective tissue.arrow_forward
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