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Integumentary system ANSWERV V Made up of skin and it's appendage integumentary system functions ANSWERV ¥ protects against environmental hazards, helps regulate body temperature, provides sensory information How much does skin weigh a. Slbs b. 10lbs c. 6lbs d. 4lbs ANSWERVV How many layers of skin do we have? a2 b.3 cl d.4 ANSWERVV a Name the layers of the skin ANSWERY ¥ epidermis and dermis Epidermis layers ANSWERV ¥ Is a layer of epithelial tissue that can be divided into sub categories. It is found on top of the Dermis Dermis layers ANSWER¥ ¥V Layer of dense connective tissue that connects the skin to tissue below it. Beneath the dermis is a subcutaneous layer sometimes call the hypodermis. Desmosomes ANSWERY ¥ interlocking cellular bridges that hold skin cells together. These are responsible for the unique flexibility, entirety, and whole continuous structure of the skin Epidermis ANSWERV ¥ is composed of keratinized, stratified squamous epithelium. It is made of four or five layers of epithelial cells, depending on its location in the body. It does not have any blood vessels within it (i-c., it is avascular). Keratinization ANSWERV ¥ a process by which epidermal cells of the skin change shape, composition and lose water as they move to the upper layers and become mainly protein and die Karatin ANSWERV ¥ A protein that is the main component of the skin; the main substance of the hair, skin and nails Strata ANSWERV V The process of keratinization produces distinct layers of the epidermis is called stratum corneum ANSWERY ¥ outermost layer of the epidermis, which consists of flattened, keratinized cells. Commonly called the horny or leathery layer. Yes cells move up from the basement membrane, they eventually ANSWERV V Die The protein material of hair and nails is ANSWERV ¥ keratin There are Layers of epidermis ANSWERV V Five Dead cells converted to protein make up the ANSWERY ¥ Stratum corneum A callus on the foot is called an ANSWERV ¥ Corn Cells Lose their nuclei and become compact and brittle in the ANSWERV ¥ Stratum granulosum The stratum Spinosum contains cells that are in structure ANSWERVJ Polyhedron Cells of the epidermis are capable of dividing are found in the - ANSWERYV ¥ stratum germinative Those cells responsible for skin colour are ANS WERV V Melanocytes Ratio variation in certain colour is determined by ANSWERV J Melanin And absent of melanin produced as a condition called ANSWERV ¥ Albinism True skin is the ANSWERV V Dermis A specialist concern with implemtoryory responses of the skin and reactions of the immune system is ANSWERV ¥ Allergist Besides memory glans Is a main characteristic of mammals ANS WERV V Hair blueish tinge to the skin colour is called ANSWERV V Cyanosis Goosebumps are caused by What muscle ANSWERY ¥ arreetor pili Hair growth begins in the ANSWERV ¥ hair bulb Hey nail will grow from the ANSWERV V Nail bed The Eponychium is: ANSWERV V cuticle What is the oily substance responsible for lubrication of the skin ANSWERV ¥ Scbum What gland is Sebum excreted from ANSWERV V Sebaceous gland The dermis is also known as the ANSWERV Vv corium Skin modifications ANSWERV V appendages epidermal cellular links ANS WERV V desmosomes clear layer ANSWERV ¥ stratum lucidum varies skin pigmentation ANSWERV V melanin Affected by first degree burns ANS WERY V epidermis subcutancous layer ANS WERV V hypodermis hair's principal portion ANSWERV ¥ cortex Harris visible portion ANSWERV ¥ Shaft hair texture ANSWERV ¥ Keratin Visible nail ANSWERV V nail body oily gland ANSWERV V sebaceous Salty liquid secretion ANSWERV V Sweat Skin function ANSWERV ¥ -thermoregulation sensation -metabolism of vitamin D -protection from shear -protection from water loss Skin cancer ANSWERV ¥ melanoma Human Papillomavirus (HPV) ANSWERV ¥ warts, 1. A bony prominence on the foot receiving excess friction may develop a a. ringworm infection b. wart c. blackhead d. com ANSWERV V d 2. Albinism is caused by a lack of a. desmosome b. osteocytes c. melanocytes d. Mast cell ANSWERV V d. corneum ANSWERVV c x . A lipid covering of cells is found in the stratum a. spinosum b. granulosum ¢. germinativum d. Corneum ANSWERV Vv d 8. Cells of the stratum corneum contain as many as a. 10 layers b. 5 layers c. 20 layers d. 25 layer ANSWERV J 9. Stratum basale is found in the stratum a. spinosum b. granulosum ¢. germinativum d. Corneum ANSWERV V ¢ 10. Racial color differences are a result of variation in quantity of a. astrocytes b. desmosome c. melanocytes d. Karyocytes ANSWERVV c 11. True skin contains which of the following? a. papillary portion b. hypodermis c. areolar tissue d. Adipose tissue ANSWERV V a 12. A bluish tinge of the skin is called a. psoriasis b. cyanosis c. shingles d. Ringworm ANSWERVV b ic of mammals is 13. Besides hair, another main characteri a. sweat glands b. ceruminous glands c. mammary glands d. Adrenal glands ANSWERV V 14. Hair covers all of the body EXCEPT the a. arms b. legs c. face d. Palms of the hand ANSWERV 4 a. melanocytes b. sebum c. sweat d. callus ANSWERV V b 20. Sebaceous secretion is controlled by the a. exocrine system b. lymphatic system c. endocrine system d. Circulatory system ANSWERVV 21. Besides fatty oils, blackheads are produced in the presence of a. water b. heat c. cold d. air ANSWERVV d 22. Sweat odor is caused by a. melanocytes b. astrocytes c, desmosomes d. bacteria ANSWERV V d 23. External environmental changes are registered by receptor sites; these changes an a. wet and dry b. temperature and moisture ¢. pressure and moisture d. temperature and pressure ANSWERV V d 24. Which of the following are NOT protective functions? a. sunlight b. bacteria c. some chemical agents d. Organic pesticides ANSWERV V d 25. Temperature regulation is critical due to excessive heat affecting a. enzymes b. blood c. urca d. sugar ANSWERVV a 26. A condition characterized by baldness that is influenced by genetic factors. hot betes, drug interactions, and/or chemotherapy is a. molds b. alopecia c. impetigo d. psoriasis ANSWERV JV b 27. The skin is involved in the production of a. ATP c. hair cells d. epidermal cells ANSWERV Vv d 32. Which of the following transmit information from receptor sites in the skin to the brain and spinal cord? a. sensory neurons b. sweat glands c. chemical agents d. melanocytes ANSWERV V a 33. Keratinization produces distinct layers of the epidermis called a, strata b. neurons c. desmosomes d. integuments ANSWERVV a Central axis of the hair ANSWERVV medulla skin pigmentation ANSWERV V Melanin Visible portion of hair ANSWERV ¥ shaft White crescent of nail ANSWERV V Lunale Desmosomes ANSWERV ¥ Produces bitter dry nails without nuclei: ANSWERV 4 Lubricates the surface of the skin ANSWERV ¥ sebum Blue and ashy color of skin ANSWERV / arrector pili muscle ANSWERV / Principle portion of hair where cells are elongated ANSWERV 4 corium ANSWERV V dermis Outermost layer of hair ANSWERV ¥ cortex One of the ways the skin helps regulate body temperature is through the evaporation of ANSWERVV Sweat Five layers of the epidermis ANSWERV V All start with stratum comcum lucidum granulosum spinosum a. Bulla (large Bluster) b. Mascule c. nodules d. papule ANSWERV JV b Solid and elevated: however, they are extended deeper than papules into the dermis or subcutaneous tissues, greater than 10mm ex: Lipoma, erythema, cyst, wart a. Bulla (large Bluster) b. Mascule c. nodules d. papule ANSWERVV c Solid elevated lesion less than 1 cm in diameter Ex: elevated nevi a. Bulla (large Bluster) b. Mascule ce. nodules d. papule ANSWERV ¥ d vesicles or bullae that become filled with pus, usually described as less than 0.5 em in diameter. Ex: acne, impetigo, furuncles, carbuncles. a. pustule b. ulcer c. tumor d. Vesicle ANSWERVV a A depressed lesion of the epidermis and upper papillary layer of the dermis. Ex: stage 2 pressure ulcer a. pustule b. ulcer c. tumor d. Vesicle ANSWERVV b The same as a nodule only greater than 2cm. Ex: Benign cpidermal tumor, basal cell carcinoma a. pustule b. ulcer c. tumor d. Vesicle ANSWERVV c Accumulation of fluid between the upper layers of the skin; elevated mass containing serous fluid less than 10 mm ex: Herpes simplex, herpes zoster, chickenpox a. pustule b. ulcer c. tumor d. Vesicle ANSWERVV d 
