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A&P 3 Comprehensive Study Guide  ANATOMY & PHYSIOLOGY 3 BIO255  50 Multiple Choice Questions 100 points total_Chamberlain College of Nursing BIO 255

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Chamberlain College of Nursing BIO 255  A&P 3 Comprehensive Study Guide  ANATOMY & PHYSIOLOGY 3 BIO255  50 Multiple Choice Questions 100 points total Feedback Systems Negativefeedback Bl... ood pressure A Process In Whichthebody senses a change and example activates mechanisms that reverse it. Keepsavariable closeto its set point At Negative feedback opposes original stimulus☒ MOST COMMON feedback loop → inthebody→ Examples of negativefeedback 100ps Blood ÷::÷÷÷::+i sugarregulation ¥ ihropos.it ivefeedback ¥IuP0nenIse%9Ef%Ft9¥¥Éecto#nm self- amplifying cycle in whicha physiological change leads to an even greaterchange inthe same direction → PositivefeedbackIrinaÑcesoriginal Stimulus l l l t' Examples of positivefeedback 100ps Blood :÷:÷÷ clotting ¥ Epithelial Tissue Epithelial tissue consists of a sheet of closely adhering cells, one or more cells thick, with the upper surface usually exposed to the environment or to an internal space in the body. Epithelium covers the body surface, lines body cavities, forms the external and internal linings of many organs, and constitutes most gland tissue. Epithelia are avascular (without blood vessels) —there is no room for them between the cells. Epithelia, however, usually lie on a vesselrich layer of connective tissue, which furnishes them with nutrients and waste removal Epithelial cells establish an apical-basial polarity which results from the differential distribution of phospholipids, proteins complexes, and cytoskeletal components between the various plasma membrane domains reflecting their specialized functions m w r{by Name class tissue firsttype , cell shape second ÷÷:÷:÷÷÷÷÷LTi basementlayer membrane beneath that serves as Epithelialtissueishg highly regenerative polarizedno CONNECTIVE TISSUE Describe the 3 types of protein fibers in connective tissue What is chondroitin sulfate and where is it located in the body? ⑥ ⑥ ④A Chondroitin GAGS are GAG negatively sulfate (glycosaminoglycans charged is the, which most attracts common 80¥ sodium and potassium ions , which in return causes them to absorb and retain water Tf£FB§µÑLY§DYµ role GAGS in play regulating an important the water in blood vessels and bones , and electrolyte balance of and gives cartilage itsisi-ifries.si. tissues ]"''"ÉI fomenter: strong and stretch resistantI 1 1 1 11 ECwwwt.be: flexible and resilient wee → RCmnmtrfibers.torm an interwoven framework SKIN The epidermal cells are packed with a tough protein keratin and linked by strong desmosomes that gives the epithelium, or skin, is durability Merocrine (eccrine) glands: Sweat glands that function in evaporative cooling; widely distributed over the body surface; open by ducts onto the skin surface Apocrine glands: Sweat glands that function as scent glands; found in the regions covered by the pubic, axillary, and male facial hair; open by ducts into hair follicles Sebaceous glands: Oil glands associated with hair follicles WHAT IS THE FUNCTION OF KERATIN IN THE EPIDERMIS? DISCUSS THE LOCATIONS AND FUNCTION OF MEROCRINE, SEBACEOUS, AND APOCRINE GLANDS ☒ • • ←I { } = I / ③ sweatm ② ' sweaty E Define the terms diaphysis, metaphysis, & epiphysis The principal features of a long bone are its shaft, called the diaphysis and an expanded head at each end called the epiphysis The metaphysis is the region where the epiphysis joins the diaphysis; in a growing bone this corresponds to the calcified layer of the epiphyseal plate BONES Discuss the diffe [Show More]

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