BIOL 224 Lecture 1: Week 1: Aug20-24

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Dynamic balance : relatively constant internal ( physiological ) environment mtnefaceot constantly. 100ps : regulation of: negative fb : most. + examples " function regulatory mechanism common atalrlyconstahtlevelot physiological variable. Bloodsugarcgluwse) levels , blood levels of most regulation balance ) hormones: positive fb , agenemlsohemeot rare but critical. I variable temperature , blood glucose, khidiihnaeha@xegtfm0nndehnln0nsotphy8lo10gyi-thestudyotthetunchonotananmicalstmctures-h0wc0mp0nentsotbodytunuhontosustamlite-ther01eotdnatomympnysl0l09y. unalrstandlngstmcturehaquidltounalrsmndmgtuna70nhomeostaslss. a sensor integrating center etfector. Hypothalamus i mdmm ) sense "s body temperature ltboaytdnp , signals. " heater " neural or hormonal signal organymusues increase analorsmver metabolism. Steyn sweat glands the body are fluctuating , For example : circadian rhythms { daily core this is why we need feedback loops da why me. Resting heart mechanisms rate is also monitored : nervous system to monitor the stretching of these blood vessels constantly antagonistic , it there are. Examples : far less variable common stimulates than a. Until stimulus is removed: childbirth : pressure of until further contractions, blood clotting factors : each.

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