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Chaper 1

TermDefinition
If the secretion of oxytocin during childbirth operated as a negative-feedback control loop, what effect would it have on uterine contractions? Oxytocin would inhibit uterine contractions.
Negative-feedback control systems: oppose a change.
Positive-feedback control systems accelerate a change.
Epidemiology is the study of the _____ of diseases in human populations. occurrence , distribution, transmission All of the above are correct.
Of the 11 major body systems, which is the least involved in maintaining homeostasis? Reproductive
Extrinsic control usually involves which mode of regulation? nervous & endocrine
The impact of effector activity on sensors may be positive or negative. Therefore, homeostatic control mechanisms are categorized as organs that are directly influenced by physiological variables or mechanisms.
Because negative feedback control systems oppose changes that are opposite in direction to the initial disturbance, they are slowed or maintained in the homeostatic range
The body naturally changes some set points to different values at different times of the day. These daily cyles are called circadian cycles.
Effectors can be described as organs that directly influence controlled physiological variables.
Created by: vanwill96
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