Principles of Anatomy and Physiology
16th Edition
ISBN: 9781119662792
Author: Tortora, Gerard J., DERRICKSON, Bryan H.
Publisher: WILEY
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Textbook Question
Chapter 5, Problem 7CP
Describe the structure of a hair. What causes "goose bumps"?
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Explain how a hair is formed.
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Chapter 5 Solutions
Principles of Anatomy and Physiology
Ch. 5 - l. What structures are included in the...Ch. 5 - Prob. 2CPCh. 5 - 3. What are the structural and functional...Ch. 5 - How are epidermal ridges formed?Ch. 5 - What are the three pigments in the skin, and how...Ch. 5 - What is a tattoo? What are some potential problems...Ch. 5 - Describe the structure of a hair. What causes...Ch. 5 - Contrast the locations and functions of sebaceous...Ch. 5 - Describe the parts of a nail.Ch. 5 - 10. What criteria are used to distinguish thin and...
Ch. 5 - 111. In what two ways does the skin help regulate...Ch. 5 - How does the skin serve as a protective barrier?Ch. 5 - Prob. 13CPCh. 5 - 14. What types of molecules can penetrate the...Ch. 5 - 15. Why doesn't epidermal wound healing result in...Ch. 5 - Which structures develop as do downgrowths of the...Ch. 5 - What factors contribute to the susceptibility of...Ch. 5 - The amount of dust that collects in a house with...Ch. 5 - Josie reassures her mother that the tattoo she...Ch. 5 - Six months ago, Chef Eduardo sliced through the...
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- Describe the three regions of a hair from its base to its tip, and the three layers of a hair seen in cross section?arrow_forwarddescribe the histology of a hair and its follicle;arrow_forwardFollowing are descriptions of several hairs; based onthese descriptions, indicate the likely race of the personfrom whom the hair originated:a. Evenly distributed, fine pigmentationb. Continuous medullationc. Dense, uneven pigmentationd. Wavy with a round cross-sectionarrow_forward
- What is the outer layer of hair called that is made up of dead keratinized cells? Where are ceruminous glands found? What is the tough, water-repellent layer of the epidermis called?arrow_forwarddiscuss some theories of the purposes served by variouskinds of hair; andarrow_forwardWhat part of the hair extends from the hair papilla to the body surface?arrow_forward
- Fill in the blanks: The portion of the hair that projects from the surface of the skin is the __________, and the portion within the dermis is the __________, which is embedded in a(n) __________. The portion of the hair that contains cells that undergo mitosis during the growth stage of the hair is known as the __________.arrow_forwardDistinguish between a hair and a hair follicle.arrow_forwardIdentify the three zones of the hair, and which of these zones contains living cellsarrow_forward
- Describe briefly the stages in the formation of hair in epidermal layersarrow_forwardWhat is the more common term for the eponychium of the nail? The visible part of the hair is called the: What is the white, half-moon shaped area of the proximal nail called? Which cells of the epidermis produce the pigment of the skin? What glands are associated with hair follicles? What are the main types of fingerprint patterns? How many layers of epidermis are found in thin skin? What are the most numerous sudoriferous glands called - that are found in most skin? What is the smooth muscle associated with every hair follicle called? What is the outer layer of hair called that is made up of dead keratinized cells? Where are ceruminous glands found? What is the tough, water-repellent layer of the epidermis called? What is the thicker, deeper layer of the dermis called?arrow_forwardDescribe the hair and give the componentsarrow_forward
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