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Which hormones are most dominant during the resistance phase of the General Adaptation Syndrome (GAS)?
A
Epinephrine and norepinephrine
B
Estrogen and progesterone
C
Insulin and glucagon
D
Glucocorticoids such as cortisol
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1
Understand the General Adaptation Syndrome (GAS) model, which describes the body's physiological response to stress in three phases: alarm, resistance, and exhaustion.
Identify the hormones involved in each phase: during the alarm phase, the sympathetic nervous system triggers the release of epinephrine and norepinephrine.
Focus on the resistance phase, where the body attempts to adapt to ongoing stress by maintaining a heightened state of alertness and energy availability.
Recognize that during the resistance phase, glucocorticoids such as cortisol become the dominant hormones, helping to sustain energy supply by increasing glucose availability and suppressing non-essential functions.
Conclude that the dominant hormones during the resistance phase are glucocorticoids like cortisol, rather than epinephrine, norepinephrine, or other hormone pairs listed.