SEELEY'S ANATOMY+PHYSIOLOGY
12th Edition
ISBN: 9781260172195
Author: VanPutte
Publisher: RENT MCG
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Chapter 5, Problem 5RAC
Summary Introduction
Introduction:
The skin is composed of two primary tissue layers- the epidermis, and the dermis. The epidermis forms the skin's surface layer containing stratified epithelial squamous tissue. The many cell layers of the epidermis protect it from potential damage due to abrasion on the skin. It also reduces the loss of water from the skin. The epidermis lies in the dermis.
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For questions 2–6, match the layer of the epidermis with the correctdescription or function:a. stratum basale d. stratum lucidumb. stratum corneum e. stratum spinosumc. stratum granulosum2. Production of keratin fibers; formation of lamellar bodies; limitedamount of cell division3. Sloughing occurs; 25 or more layers of dead squamous cells4. Production of cells; melanocytes produce and contribute melanin;hemidesmosomes present5. Production of keratohyalin granules; lamellar bodies release lipids;cells die6. Dispersion of keratohyalin around keratin fibers; layer appears transparent; cells dead
DIRECTIONS: Match the letter of the description and/or function to the epidermal layer that defines it.
A. Outermost layer of dead keratinocytes that protect the skin
6. Stratum basale
B. Layer of skin composed of areolar and dense irregular connective tissues
7. Stratum spinosum
C. Layer of keratinocytes that undergo apoptosis via keratinization
8. Stratum granulosum
D. Single layer of active stem cells that undergo somatic cell division
9. Stratum lucidum
E. Layer of skin composed of adipose and areolar connective tissue
10. Stratum corneum
F. Layer of keratinocytes with intermediate filaments to resist tension
G. Layer of clear, flat, dead keratinocytes found only in thick skin
Briefly answer the following questions:1. Cells of the epidermis are derived from stem cells of the stratum basale. Describe how the cells change as they become integrated into the different layers of the epidermis.2. What structures are produced from keratinization of the epidermis?
Chapter 5 Solutions
SEELEY'S ANATOMY+PHYSIOLOGY
Ch. 5.1 - Provide on example for each function of the...Ch. 5.2 - From deepest to most superficial, name and...Ch. 5.2 - Prob. 3AYPCh. 5.2 - Prob. 4AYPCh. 5.2 - Prob. 5AYPCh. 5.2 - How do gentic factors, exposure to sunlight, and...Ch. 5.2 - How do carotene, blood flow, oxygen content, and...Ch. 5.2 - Prob. 8AYPCh. 5.2 - Prob. 9AYPCh. 5.2 - What are cleavage lines, and how are they related...
Ch. 5.3 - Name the types of tissue forming the subcutaneous...Ch. 5.3 - Prob. 12AYPCh. 5.3 - Prob. 13AYPCh. 5.4 - When and where are Ianugo, vellus, and found in...Ch. 5.4 - Prob. 15AYPCh. 5.4 - Prob. 16AYPCh. 5.4 - Describe the ports of a hair follicle. How the...Ch. 5.4 - Prob. 18AYPCh. 5.4 - Prob. 19AYPCh. 5.4 - Prob. 20AYPCh. 5.4 - Prob. 21AYPCh. 5.4 - Which glands of the skin are responsible for...Ch. 5.4 - Name the ports of a nail. Which Port produces most...Ch. 5.4 - Prob. 24AYPCh. 5.5 - In what ways does the skin provide protection?Ch. 5.5 - Prob. 26AYPCh. 5.5 - Prob. 27AYPCh. 5.5 - Prob. 28AYPCh. 5.5 - Prob. 29AYPCh. 5.6 - Prob. 30AYPCh. 5.7 - Compared with young skin, why is aged skin more...Ch. 5.7 - Prob. 32AYPCh. 5.7 - Prob. 33AYPCh. 5.7 - Prob. 34AYPCh. 5 - If a splinter penetrates the skin of the palm of...Ch. 5 - Prob. 2RACCh. 5 - Prob. 3RACCh. 5 - Prob. 4RACCh. 5 - Prob. 5RACCh. 5 - Prob. 6RACCh. 5 - Prob. 7RACCh. 5 - Prob. 8RACCh. 5 - Prob. 9RACCh. 5 - Prob. 10RACCh. 5 - Prob. 11RACCh. 5 - Prob. 12RACCh. 5 - Prob. 13RACCh. 5 - Prob. 14RACCh. 5 - Prob. 15RACCh. 5 - Smooth muscles that are attached to hair follicles...Ch. 5 - Prob. 17RACCh. 5 - For questions 17-19, match the type of gland with...Ch. 5 - Prob. 19RACCh. 5 - Prob. 20RACCh. 5 - Prob. 21RACCh. 5 - Prob. 22RACCh. 5 - Which of these processes increase (s) heat loss...Ch. 5 - Prob. 24RACCh. 5 - The skin of infants is more easily penetrated and...Ch. 5 - Melanocytes are found primarily in the stratum...Ch. 5 - The rare of water loss from the skin of a hand was...Ch. 5 - It has been several weeks since George has...Ch. 5 - Prob. 5CTCh. 5 - Why are your eyelshes not a foot long? Your...Ch. 5 - Pulling on hair can be quite painful, hyet cutting...Ch. 5 - A patient has an ingrown toenail, in which the...Ch. 5 - Defend or refute the following statement:...Ch. 5 - Harry, age 55, went to a health fair and had a PSA...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- The papillary layer of the dermis is most closely associated with which layer of the epidermis? stratum spinosum stratum corneum stratum granulosum stratum basalearrow_forwardAs you are walking down the beach, you see a dead, dry, shriveled-up fish. Which layer of your epidermis keeps you from drying out? stratum corneum stratum basale stratum spinosum stratum granulosumarrow_forwardThe papillary and reticular layers of the dermis are composed mainly of ________. melanocytes keratinocytes connective tissue adipose tissuearrow_forward
- Langerhans cells are commonly found in the ________. stratum spinosum stratum corneum stratum granulosum stratum basalearrow_forwardCollagen lends ________ to the skin. elasticity structure color UV protectionarrow_forwardMatch each item in column A with the most closely related item in column B.Place letters for answers in the spaces provided.arrow_forward
- Match each event in the life of a keratinocyte with the epidermal layer in which that event occurs. 1 Stratum corneum 2 Stratum basale 3 Stratum spinosum 4 Stratum granulosum Match each of the options above to the items below. Stem cells divide, and new keratinocytes are produced. Mitosis ceases. Keratinocytes are pushed upward as new cells are added below them. Keratin filaments are bound together to form waterproof bundles. Keratinocytes die. Dead keratinocytes exfoliate from the skin surface.arrow_forwardMatch the following epidermal layer with the correct term. This layer is water resistant and A. Stratum germinativum or basale contains 20-30 layers of dead keratinized cells. Keratinocytes start producing B. Stratum Corneum keratin and keratohyalin here. By the time keratinocytes cells reach this layer, most would have stopped dividing. This glassy layer is present only C. Stratum Granulosum in thick skin (palms and soles). This layer contains keratinocytes D. Stratum Spinosum undergoing mitosis. Melanocytes and Merkel cells are found in this layer. This layer contains epidermal dendritic cells, also known as Langerhans cells. E. Stratum Lucidumarrow_forwardPlease answer fastarrow_forward
- Match the following epidermal layers and corresponding cells provided below with the given illustration Thick skin (palm and foot sole) approximately 1.5 mm thick Thin skin, approximately 0.1 mm thick 5. 6. 7. 1. 1. 2. - 9. 2. 3. 4. 3. 4. 10. 11. 12.arrow_forwardThe layer of the epidermis in which cells begin the process of keratinization is the a. stratum corneum. b. stratum basale. c. stratum lucidum. d. stratum granulosum.arrow_forward. The layer of epidermal cells containsolder keratinized cells and dead cells. a. stratum corneumb. stratum granulosumc. stratum spinosumd. stratum basalearrow_forward
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