For alternate meanings see skin (disambiguation) Diagram of the layers of human skinIn zootomy and dermatology‚ skin is an organ of the integumentary system composed of a layer of tissues that protect underlying muscles and organs. As the interface with the surroundings‚ it plays the most important role in protecting against pathogens. Its other main functions are insulation and temperature regulation‚ sensation and vitamin D and B synthesis. Skin has pigmentation‚ provided by melanocytes
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Chapter 5: Integumentary System When comparing the dermis with the hypodermis‚ A. the dermis has more fat cells than the hypodermis. B. the dermis has more vascular tissue than the hypodermis. C. the dermis contains dense connective tissue; the hypodermis contains loose connective tissue. D. the dermis contains melanocytes; the hypodermis does not. Answer C Keratinocytes: A. produce skin pigments in cell organelles called melanosomes. B. are found in both the dermal and epidermal layers
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Module 02 Case Study: Integumentary System Part I—"Soaking Up the Sun" Questions 1. What are some differences between Judy and Mariah that might make Judy more "at risk" for skin cancer than Mariah? (2 points) Judy is described to have pale pasty white skin and red hair. Mariah is described to be a Greek goddess. Judy’s skin is more prone to burning in the direct sun light due to her body not making as much melanin making her skin more reflective to light as where Mariah’s skin absorbs more light
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NAME_________________________________ LAB TIME/DATE _______________________ R E 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
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Psoriasis | A disease affecting the integumentary system | Simaria HollandBio 201July 21‚2011 | | Psoriasis is a chronic auto-immune disease that appears on the skin. Psoriasis happens when the immune system sends out faulty signals that increase the production of skin growth resulting in the typical appearance of thickened‚ raised‚ and dry skin. It is estimated that 2% of the world ’s population suffers from this disease. There is no "cure" for those living with this disease. Psoriasis
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Integumentary System Study Guide 1. Which portion of the epidermis has actively reproducing cells? Stratum Basale 2. Are keratin levels higher in superficial or deep epidermis? Superficial 3. Blood vessels and nerves are present in which layer of skin? Dermis 4. In what layer of skin can you find melanocytes? Epidermis (stratum basale) 5. What structure pulls the hair follicle into an upright position? Arrector Pili 6. What structure is responsible for whorled ridges on epidermal surfaces? Dermal
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1. What are some differences between Judy and Mariah that might make Judy more "at risk" for skin cancer than Mariah? (2 points) Judy was pale‚ had red hair‚ did not normally tan. Mariah tanned every summer‚ had dark hair. 2. What observations did Judy make concerning her mole? How could they have used the ABCDE’s of skin cancer assessment to further assist their observations? (2 points) She observed it was bigger and the edges were more jagged than she remembered. One edge was darker than the other
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The integumentary system serves as protection for the body. While its goal is to avoid damage‚ diseases of the skin do occur. Diseases of the integumentary system vary from skin cancer to acne to warts. Warts‚ however‚ are small tumors that are caused by the human papilloma virus (HPV). The type of wart depends on the type of HPV. Overproduction of the keratin protein leads to verruca plantaris‚ better known as plantar warts. They are rough‚ hard growths that appear on the sole of the foot. Typically
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Module 02 Case Study: Integumentary System Part I—"Soaking Up the Sun" Questions 1. What are some differences between Judy and Mariah that might make Judy more "at risk" for skin cancer than Mariah? (2 points) --Some of the differences would be the coloring of their skin. Mariah has darker pigmentation‚ with dark hair. Mariah has more melanin in her skin giving her more protection from the sun‚ unlike Judy‚ who has light skin‚ with red hair and blue eyes. Also the fact that Mariah goes out in
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SCI250 Week 5 Chapter 19 Integumentary System Quiz – Test Bank Section: Multiple Choice 1. The majority of the microorganisms on the surface of the human skin are ________ Gram-positive bacteria. Gram-negative bacteria. approximately equal numbers of Gram-positive and Gram-negative bacteria. Spore-forming bacteria. Enteric. 2. The outer layer of the skin is the _________ while the deeper layer is the _________ cutaneous‚ keratin. dermis‚ sebum. mucous‚ epidermis. epidermis‚ dermis. sebum‚ keratin
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