"Epithelium" Essays and Research Papers

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Integumentary System

1.Name the tissue types composing the epidermis and dermis. List the major layers of each and describe the functions of each layer. The epidermis is composed of keratinized stratified squamous epithelium tissue. The cells are specifically keratinocytes, melanocytes, Merkel cells, and Langerhans’ cells. The layers of the epidermis are the basal layer (stratum basale), it is the deepest layer and is attached to the dermis, the cells are actively mitotic. The next layer is the prickly layer (stratum...

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Aphy 101 Midterm Study Guide

describe the function of the basement membrane of epithelial tissues. • How are the epithelial tissues named – by what characteristic(s)? • *Describe the structure and list the functions of the various epithelial tissues, including glandular epithelium. Reference Table 5.5. • *Name and describe the various structural types of exocrine glands. Reference Figure 5.11. • Define Extracellular Matrix (ECM) of connective tissue. • *Describe the 3 main types of cells and the 3 main types...

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Case Study 1 for a&P

Case Study 1 1. Briefly describe the three major layers of skin that make up healthy skin The three layers that make up healthy skin: Epidermis, Dermis and Hypodermis. Epidermis is composed of keratinized, stratified squamous epithelium. This layer provides a thick, water proof protective covering over the underlying skins. The dermis layer is composed of primarily of dense, irregular, fibrous connective tissue that is rich in collagen and elastin. The dermis contains blood vessels, nerve ending...

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The Role of the Skin in Maintenance of Homeostasis

However this essay will demonstrate how some of these different functions of the skin contribute to the maintenance of homeostasis which is the maintenance of a constant internal environment. The epidermis of the skin consists of stratified squamous epithelium that is made of corneocytes, packed with keratin as a result of which the layers are tough and water resistant. Dominated by keratinocytes, thin skin has four layers which are stratum corneum (SC), stratum granulosum, stratum spinosum and stratum...

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Unit 3 Study Guide

damaged area from undamaged blood vessels nearby o Fragile and bleed freely when scab is scraped away o Contains phagocytes and get rid of the blood clot and connective tissue cells that make collagen fibers the bridge the gap - Epithelium grows back together covering the scar tissue 12. What is the composition of DNA? - DNA (deoxyribose nucleic acid): DNA is made up of nucleotides( nucleotides are made up os 1) deoxyribose sugar molecules, 2) phosphate groups, 3)...

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unit 39 p1

referring to the flatness of the cells. They fit jointly, rather like crazy paving. Clearly, such delicate thin cells cannot offer much protection and their chief function is to allow materials to pass through via diffusion and osmosis. Simple squamous epithelium is found in the walls of; lung alveoli, blood capillaries and Bowman’s capsule of nephrons. As their names propose, cubiodal cells are cube-shaped, with spherical nuclei. They often line ducts and tubes and can allow materials to pass through in...

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Principal Tissues in the Human Body

their locations, and what their functions are in the human body. Epithelial tissues can be one of several types of cell shapes and arrangements and forming either sheets or glands. The first of these are simple squamous, cuboidal, columnar epithelium. Simple refers to a singular layer of cells and squamous (flat), cuboidal (cube-like), and columnar (cells are taller than they are wide) refer to the shape of the cells. Next comes stratified (multiple layers), pseudo-stratified (one layer that...

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Suntans and Sunburns - Case Study

developed numerous blisters. These areas cover about 30% of the trunk (front and back) and 40% of the arms and legs. 1. What organ has been damaged? Skin 2. What general types of tissue have been afflicted? Stratified Squamous Epithelium in the epidermis, Areolar Connective Tissue, and some Dense Irregular Connective Tissue in the dermis have been afflicted. 3. What type of burn has the student received? Explain. 2nd Degree Burn – Because of the blisters and severe pain...

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The Integumentary System Basic Structure of the Skin

V I E W S H E E T EXERCISE 7 Print Form The Integumentary System Basic Structure of the Skin 1. Complete the following statements by writing the appropriate word or phrase on the correspondingly numbered blank: Stratified squamous epithelium The two basic tissues of which the skin is composed are dense irregular 1. _____________________________ connective tissue, which makes up the dermis, and 1 , which forms the epiKeratinocytes dermis. The tough water-repellent protein found in the...

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Integumentary System Study Guide Answer

lucidum e. Stratum corneum 25.List five protective functions of the integumentary system. a. Prevents water loss (lipids) b. Prevents entry of microorganisms/foreign substances (secretions & skin) c. Protects against abrasion (stratified squamous epithelium) d. Protects against UV light damage (melanin) e. Hair: insulation (head), keeps foreign objects/microorganisms/sweat out (eyelashes, eyebrows, nose & ear hairs) f. Damage protection/defense (nails) 26.Explain the importance of the "rule of 9s"...

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