Anatomy & Physiology
1st Edition
ISBN: 9781938168130
Author: Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble
Publisher: OpenStax College
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Textbook Question
Chapter 5, Problem 7RQ
The papillary and reticular layers of the dermis are composed mainly of ________.
- melanocytes
- keratinocytes
- connective tissue
- adipose tissue
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Chapter 5 Solutions
Anatomy & Physiology
Ch. 5 - The skin consists of two layers and a closely...Ch. 5 - Figure 5.4 If you zoom on the cells at the...Ch. 5 - Figure 5.6 If you zoom on the cells of the stratum...Ch. 5 - This ABC video follows the story of a pair of...Ch. 5 - The papillary layer of the dermis is most closely...Ch. 5 - Langerhans cells are commonly found in the...Ch. 5 - The papillary and reticular layers of the dermis...Ch. 5 - Collagen lends ________ to the skin. elasticity...Ch. 5 - Which of the following is not a function of the...Ch. 5 - In response to stimuli from the sympathetic...
Ch. 5 - The hair matrix contains ________. the hair...Ch. 5 - Eccrine sweat glands ________. are present on hair...Ch. 5 - Sebaceous glands ________. are a type of sweat...Ch. 5 - Similar to the hair, nails grow continuously...Ch. 5 - In humans, exposure of the skin to sunlight is...Ch. 5 - One of the functions of the integumentary system...Ch. 5 - An individual using a sharp knife notices a small...Ch. 5 - As you are walking down the beach, you see a dead,...Ch. 5 - If you cut yourself and bacteria enter the wound,...Ch. 5 - In general, skin cancers ________. are easily...Ch. 5 - Bedsores ________. can be treated with topical...Ch. 5 - An individual has spent too much time sun bathing....Ch. 5 - After a skin injury, the body initiates a...Ch. 5 - Squamous cell carcinomas are the second most...Ch. 5 - What determines the color of skin, and what is the...Ch. 5 - Cells of the epidermis derive from stem cells of...Ch. 5 - Explain the differences between eccrine and...Ch. 5 - Describe the structure and composition of nails.Ch. 5 - Why do people sweat excessively when exercising...Ch. 5 - Explain your skins response to a drop in body core...Ch. 5 - Why do teenagers often experience acne?Ch. 5 - Why do scars look different from surrounding skin?
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- Collagen lends ________ to the skin. elasticity structure color UV protectionarrow_forwardThe papillary layer of the dermis is most closely associated with which layer of the epidermis? stratum spinosum stratum corneum stratum granulosum stratum basalearrow_forwardNumber the strata of thick skin epidermis from deepest (1) to most superficial (5). _____ Stratum spinosum _____ Stratum corneum _____ Stratum basale _____ Stratum lucidum _____ Stratum granulosumarrow_forward
- Mr. Kofi Karikari, tattooed his arm with the picture of Jesus Christ. Explain briefly why after serveral years the tattoo remains there even though the epidermal surface of the skin is being replaced always.arrow_forwardKeratinocytes 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.arrow_forwardHistological descriptions of the different layers of the skin and its appendages. Epidermis Dermis Hypodermis Stratum corneum Stratum lucidium Stratum granulosum Stratum spinosum Stratum germinatum Hair Arrector pilli Sebaceous gland ( secrete hair oil) Sweat gland Nailarrow_forward
- You are looking at a slide from a patients sole. Which of the following layers of the epidermis would be present in the sample from your patient's sole, but not if you had taken a sample from the skin at their ankle? : Stratum corneum Stratum basale Stratum lucidum Stratum papillum In the "ABCD" rule used while diagnosing melanoma, B stands for: : behavior of the lesion blueness of the lesion border of the lesion blood vessels in the lesionarrow_forwardThe form and pattern of skin ridges are determined bythe (epidermis, dermal papillae).arrow_forwardPapillary Layer: Each of these bumps or areas of the dermis that protrude into the epidermis is called a epiderma ridges What is the function of the dermal papilla? Reticular Layer: "Reticular" means network and can refer to many structures, not just reticular connective tissue. This layer of the dermis is made of mostly dense irregular connective tissue. Why?_ Draw what you see. Label the collagen fibers, fibroblast nuclei, and any hair or glands that you see. HYPODERMIS: Fibroblast: Collagen Dense regular connective tissue Dense irregular connective tissue You will see a tissue that looks like soap bubbles. Each "bubble" is a single cell with one nucleus pushed to the very edge of the bubble. The rest of the cell is filled with fat or adipose, giving the tissue its name: loose connective tissue. You also find this tissue in areas of the body where fat is stored (yellow bone marrow, greater omentum, etc.) What is the function of this tissue in this layer of the skin? Draw what you…arrow_forward
- "The deeper within the dermis or subcutaneous tissue any dark pigment is located, the bluer the pigment appears because of the light-scattering effect of the overlying tissue. " TRUE FALSEarrow_forwardWhich region of the dermis forms ridges that create fingerprints? Group of answer choices cutaneous papillary reticular subcutaneousarrow_forwardThe cuticle is a complex non-cellular layer secreted by the epidermis. It is the seat of complex processes and changes. Along this line, how are sclerotization and melanization of the integument influenced by the hemolymph? Elaborate.arrow_forward
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