physiology key terms

physiology key terms - Chapter 1 Key Terms acclimatization...

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Unformatted text preview: Chapter 1 Key Terms acclimatization acquired reflex adaptation afferent pathway autocrine substance basement membrane cell cell differentiation circadian rhythm collagen fiber connective tissue connective-tissue cell developmental acclimatization dynamic constancy effector efferent pathway elastin fiber entrainment epithelial cell epithelial tissue equilibrium extracellular fluid extracellular matrix feedforward fiber free-running rhythm functional unit homeostasis homeostatic control system hormone integrating center internal environment interstitial fluid interstitium intracellular fluid learned reflex local homeostatic response melatonin muscle cell muscle tissue negative balance negative feedback improved functioning of an already existing homeostatic system due to prolonged exposure many responses are the result of learning and practice a characteristic that favors survival in specific environments carries signals into the integrating center from the receptor do not communicate b/n cells; chemical secreted by a cell into extracellular fluid and acts upon the cell that secreted it extracellular protein layer that epithelial cells rest on that anchors the tissue simplest structural units into which a complex multicellular organism can be divided and still retain functions characteristic of life process of transforming an unspecialized cell into a specialized cell cycles every 24hrs; waking and sleeping, body temp, hormone conc, excretions, etc protein of extracellular matrix; 1/3 bodily proteins; like reinforcing iron mesh or rods in concrete type of tissue connect, anchor, and support the structures of the body induced early in life, at a critical period of development, may be irreversible variation within a normal range over short term; stable and predictable in long term last component of the system; change in activity constitutes overall response carries signals away from the integrating center to the response carb containing protein; function as adhesion molecules b/n cells; analogous to surrounding cement setting of the actual hours of the rhythm specialized for the selective secretion and absorption of ions and organic molecules; cuboidal, columnar, squamos, ciliated; simple or stratified type of tissue that lines body walls no input of energy is required to maintain the constancy fluid present in the blood and in the spaces surrounding cells fluid interspersed within a complex matrix consisting of a mixture of proteins anticipates changes in regulated variables and minimizes fluctuations proteins of the extracellular matrix rhythm persisted in the complete absence of environmental cues small, similar subunits each performing the function of the organ dynamic, reasonably stable balance b/n physiological variables compensating mechanisms that mediate homeostaiss type of chemical messenger secreted into the blood by cells of the endocrine system a stimulus acts upon a receptor to produce a signal that is relayed to this place part of the body where fluids that surround cells and exist in the blood...
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This note was uploaded on 02/29/2012 for the course PHYSIOL 335 taught by Professor Staff during the Spring '08 term at Wisconsin.

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physiology key terms - Chapter 1 Key Terms acclimatization...

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