Human Anatomy & Physiology (2nd Edition)
2nd Edition
ISBN: 9780134553511
Author: Erin C. Amerman
Publisher: PEARSON
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Textbook Question
Chapter 5.2, Problem 2QC
How does a keratinocyte that begins its life in the deepest stratum of the epidermis eventually end up on the epidermal surface?
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Explain how a keratinocyte that begins its life in the deepest stratum of the epidermis eventually ends up on the epidermal surface.?
Keratinocytes are the major cellular components of the epidermis. They are found in the four major epidermal strata: basale, spinosum, granulosum and corneum. Explain the characteristics of and the changes in the keratinocytes as they journey from the deepest to the most superficial epidermal strata.
Which epidermal cells are also called prickle cells? Which contain keratohyaline and lamellar granules?
Chapter 5 Solutions
Human Anatomy & Physiology (2nd Edition)
Ch. 5.1 - 1. What are the major structures of the skin, and...Ch. 5.1 - 2. How does the integument provide protection...Ch. 5.1 - Prob. 3QCCh. 5.1 - What are the other functions of the integument?...Ch. 5.2 - 1. What are the five strata of the epidermis? How...Ch. 5.2 - How does a keratinocyte that begins its life in...Ch. 5.2 - Prob. 3QCCh. 5.2 - Prob. 4QCCh. 5.3 - Which type of tissue makes up the papillary layer...Ch. 5.3 - What are the functions of the dermal papillae?
Ch. 5.3 - 3. Which type of tissue makes up the reticular...Ch. 5.3 - 4. What other structures are located in the...Ch. 5.3 - 5. How does the papillary layer of the dermis...Ch. 5.3 - What causes tension lines and flexure lines? How...Ch. 5.4 - How is melanin produced, and how does it interact...Ch. 5.4 - What are the functions of melanin?Ch. 5.4 - 3. What is carotene, and what color does it give...Ch. 5.4 - Prob. 4QCCh. 5.4 - 5. How can the oxygen content of the blood affect...Ch. 5.4 - 6. What is cyanosis, and what can it tell us...Ch. 5.5 - How do the hair shaft and hair root differ?Ch. 5.5 - How does a hair grow in length?Ch. 5.5 - Prob. 3QCCh. 5.5 - Define the following terms: nail bed, nail plate,...Ch. 5.5 - How does nail growth occur?Ch. 5.5 - Prob. 6QCCh. 5.5 - What are the other three types of sweat glands,...Ch. 5.5 - 8. How do sebaceous glands and sebum differ from...Ch. 5.6 - Prob. 1QCCh. 5.6 - Prob. 2QCCh. 5.6 - What is cancer?Ch. 5.6 - 4. How do the three types of skin cancer differ?
Ch. 5 - Explain why the skin is an organ.Ch. 5 - Which of the following correctly describes the...Ch. 5 - Which of the following is not a function of the...Ch. 5 - 4. Explain what happens to dermal blood vessels...Ch. 5 - Number the strata of thick skin epidermis from...Ch. 5 - Keratinocytes in the superficial strata of the...Ch. 5 - Mark the following statements as true or false. If...Ch. 5 - Which of the following statements is false? a....Ch. 5 - What are the functions of the dermal papillae?Ch. 5 - Epidermal ridges are created by: a. the epidermal...Ch. 5 - 11. Mark the following statements as true or...Ch. 5 - 12. Which of the following is not a function of...Ch. 5 - 13. Fill in the blanks: The portion of the hair...Ch. 5 - Nail growth occurs when: a. cells in the nail...Ch. 5 - Prob. 15CYRCh. 5 - Match each type of gland with its correct...Ch. 5 - How do sweat and sebum differ?Ch. 5 - 18. Which type of burn involves the epidermis and...Ch. 5 - 19. The type of skin tumor that involves the...Ch. 5 - Prob. 1CYUCh. 5 - Prob. 2CYUCh. 5 - The hair and nails are sometimes called accessory...Ch. 5 - 1. You are working in the emergency department...Ch. 5 - 2. After Ramon’s skin came into contact with a...Ch. 5 - 3. Which of the following is not a function of...Ch. 5 - 4. What would happen to the skin if the oil...Ch. 5 - Many antiaging skin creams contain collagen and...Ch. 5 - 6. Would a mild second-degree burn be likely to...
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- Is it true that when new cells are made in the epidermis, they begin to move toward the surface?arrow_forwardWhich epidermal cell type functions in the immune system? (a) keratinocyte, (b) melanocyte, (c) dendritic cell, (d) tactile epithelial cell.arrow_forwardOUTLINE the different epidermal layers with their unique properties and their functions.arrow_forward
- In addition to keratinocytes, what three types of cells are found in the epidermis? What are their functions?arrow_forwardWhy doesn’t epidermal wound healing result in scar formation?arrow_forwardMany antiaging skin creams contain collagen and hyaluronic acid. Manufacturers claim that the collagen and hyaluronic acid applied to the surface of the skin will be absorbed into the dermis, where they will be incorporated into dermal tissue?arrow_forward
- A). What is melanin's productive functions? B). Explain the role of sunlight Vitamin D production. C). How do sweat and sebum differ in their productive functions of skin?arrow_forwardWhat is epidermal homeostasis?arrow_forwardWhich of the following statements are true with regards to epidermal ridges? Select all that apply. The ridges will grow with the same pattern if the dermis is damaged If the dermis is damaged, the original ridge pattern will be altered due to scarring The ridges will grow with the same pattern if the epidermis is damaged If the epidermis is damaged, the original ridge pattern will be altered due to scarring If the stratum granulosum is damaged, the original ridge pattern will be altered due to scarring The ridges will grow with the same pattern if the hypodermis is damaged Question 2 is in the image.arrow_forward
- Discuss the importance of each layer of the epidermis. What cells do you find in each layer? What is the function of each layer? Be sure to answer completely.arrow_forwardWhich epidermal cells play a role in body immunity?arrow_forwardDescribe briefly the stages in the formation of hair in epidermal layersarrow_forward
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The Integumentary System, Part 1 - Skin Deep: Crash Course Anatomy & Physiology #6; Author: CrashCourse;https://www.youtube.com/watch?v=Orumw-PyNjw;License: Standard youtube license