| Question |
Answer |
| the study of function or how the body works |
physiology |
| levels of organization of the body |
elementary particles--atoms--molecules--organelles--cells--tissues--organs--organ systems--organism |
| maintenance of a stable steady internal environment of constancy of environment |
homeostasis |
| 3 associated areas of physiology |
anatomy, physic, chemistry |
| ___ regulate the activities of all body parts |
homeostatic processes |
| deviations from ___ ___ trigger reactions that work to counteract or reverse the change |
stable conditions |
| a principle which demonstrates the effects of various factors or conditions on functional efficiency of the bodily processes |
law of the maximum and minimum |
| pH, temperature, ion balance, sugar, are factors that applies to |
law of the maximum and minimum |
| optimal range or range of tolerance is known as |
law of the maximum and minimum |
| a control mechanism in which a response feeds back to the original point of stimulation |
basic feedback mechanism |
| 3 basic components of basic feedback mechanism |
receptors, modulators, effectors |
| stimulus--_____----_____-----_____---response |
stimulus---receptor--modulator--effector-- response |
| specialized sensory cells/tissues |
receptors |
| what are called control points or control centers |
modulators |
| muscles and glands which may affect other tissues are called |
effectors |
| negative and positive feedback are types of |
feedback mechanisms |
| the response cancels or counteracts the original stimulus is known as |
negative feedback |
| body temperature control is an ex of a type of |
negative feedback |
| the response amplifies or enhances the original stimulus is known as |
positive feedback |
| labor contractions is an ex of |
positive feedback |
| 2 sources of homeostatic control are |
intrinsic and extrinsic |
| control coming from within an organ/tissue via chemicals produced within the organ/tissue itself |
intrinsic |
| control comes from outside the organ |
extrinsic |
| regulation by nervouse system via neurotransmitters is a type of ___ homeostatic control that lasts in duration |
extrinsic and quicker and shorter in duration |
| regulation by endocrine system bia hormones is a type of ____ homeostatic control that lasts in duration |
extrinsic and slower and longer in duration |
| biorhythms that fluctuate or cycle every 24 hourse are referred toas |
circadian rhythms |
| homeostatic mechanisms allow bodily functions to fluctuate within narrow limits |
physiological rhythms |
| ___ allow bodily functions to have a dynamic equilibrium |
physiological rhythms |
| fluctuations thend to follow wave patterns called |
biorhythms or physiological rhythms |
| most important tissue, the ____ may acts as a biological clock |
hypothalamus |
| jet lag, work rotation, radical sleep schedule are causes of |
desynchronosis |
| effects of ___ are decrease congitive function, general depression , off sleep cycle, decrease visual acuity |
desynchronosis |
| circadian rhythms are controlled internally by a ___ which can be set by various external stimuli most important being ___ |
biological clock and light |
Buen Viaje lv.2 ch 8
