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a. action
b. disease
c. control center
d. set point
e. physiological positive feedback
f. effector
g. sensor/receptor
h. negative feedback loop
i. homeostasis
j. positive feedback loop
k. negative
l. efferent
m. pathological positive feedback
n. off-switch positive
f. afferent
The process known asis balance of key internal factors despite external change. A___feedback loop achieves this process by reversing the level of a factor if it deviates from a certain. The deviation is picked up by aand is carried by an route to the, which integrates the information and comes up with a plan to fix the unbalanced state; the plan of action is sent along anroute to anthat performs the. When factor levels are not regulated, one can develop a state of; an example includes blood sugar imbalances leading to diabetes mellitus.
Afeedback loop pushes the body away from balance and requires anbecause it amplifies rather than reverses the factor level. 'Good' forms are called, while 'bad' forms are called.
Example of a: You absorb nutrients from your breakfast meal leading to an increase in blood calcium concentration. The rise in calcium triggers release of a hormone that tells the skeletal system to store the ion; the result is decrease in blood calcium levels.
Example of a: A neuron becomes excited leading to protein shape change that allows ions to flow in the neuron. Ions flowing in lead to more proteins changing shape and more ion flux, which further excites the neuron.