2. Mr. X, a white man, jogs on a cold day. What color would you expect his skin to be (a) just before starting to run, (b) during the run, and (c) 5 minutes after the run? 3. If the water of a swimming pool is hypertonic to our cells and body fluids, then why do we not swell and pop when we go for a swim? 4. Melanocytes are found primarily in the stratum basale of the epidermis. In reference to their function, why does this location make sense? 5. The lips are muscular folds forming the anterior boundary of the oral cavity. A mucous membrane covers the lips internally and the skin of the face coves them externally. The vermillion border, which is the red part of the lips, is covered by keratinized epithelium that is the transition between the epithelium of the mucous membrane and the facial skin. The vermillion border can become chapped (dry and cracked), whereas the mucous membrane and

2. Mr. X, a white man, jogs on a cold day. What color would you expect his skin to be (a) just before starting to run, (b) during the run, and (c) 5 minutes after the run? 3. If the water of a swimming pool is hypertonic to our cells and body fluids, then why do we not swell and pop when we go for a swim? 4. Melanocytes are found primarily in the stratum basale of the epidermis. In reference to their function, why does this location make sense? 5. The lips are muscular folds forming the anterior boundary of the oral cavity. A mucous membrane covers the lips internally and the skin of the face coves them externally. The vermillion border, which is the red part of the lips, is covered by keratinized epithelium that is the transition between the epithelium of the mucous membrane and the facial skin. The vermillion border can become chapped (dry and cracked), whereas the mucous membrane and

Biology: The Unity and Diversity of Life (MindTap Course List)

14th Edition

ISBN:9781305073951

Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Chapter31: Animal Tissues And Organ Systems

Section: Chapter Questions

Problem 14SQ: Match each term with the most suitable description. ______ exocrine gland a. signaling cell in...

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In observing epithelial cells under a microscope, the cells are arranged in a single layer and look tall and narrow, and the nucleus is located close to the basal side of the cell. The specimen is what type of epithelial tissue? columnar stratified squamous transitional
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An individual has spent too much time sun bathing. Not only is his skin painful to touch, but small blisters have appeared in the affected area. This indicates that he has damaged which layers of his skin? epidermis only hypodermis only epidermis and hypodermis epidermis and dermis
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Exercise88 25. Identify the functions of the integumentary system. 26. Know how to identify the epidermis, dermis, and hypodermis (subcutaneous layer) in an image of a microscope slide and in an image of the skin model. Which specific tissue(s) is found in each layer (ex. hypodermis is mostly adipose tissue)? exercice 1. a. Name the five sublayers of the epidermis starting from the surface of the skin to the most internal layer. Distinguish each of these layers from each other structurally including the cell types found in each layer. Which of these sublayers is absent in thin skin? b. What is keratin? What is the function of keratin and where do keratinocytes begin its production? c. What is melanin? What is the function of melanin? Where are the melanocytes that produce it located? d. In which sublayer of the epidermis is mitosis occurring? In which sublayer do the cells produce lipids for waterproofing? e. Identify all of the sublayers of the…
About 200 distinct kinds of cells can be identified in the body in terms of differences in structure and function. True or false?
Match each term with the most suitable description. ______ exocrine gland a. signaling cell in nervous tissue ______ endocrine gland b. secretion through duct ______ fibroblast c. collagen-producing cell ______ melanocyte d. contraction is involuntary ______ neuron e. pigment-producing cell ______ smooth muscle f. main source of metabolic heat ______ skeletal muscle g. main cell type in epidermis ______ blood h. fluid connective tissue ______ keratinocyte i. includes interstitial fluid, lymph ______ extracellular fluid j. secretes hormones
Figure 5.4 If you zoom on the cells at the outermost layer of this section of skin, what do you notice about the cells? Figure 5.4 Epidermis The epidermis is epithelium composed of multiple layers of cells. The basal layer consists of cuboidal cells, whereas the outer layers are squamous, keratinized cells, so the whole epithelium is often described as being keratinized stratified squamous epithelium. LM Ă— 40. (Micrograph provided by the Regents of University of Michigan Medical School Â© 2012)