Podcast
Questions and Answers
During chronic stress, what happens to the secretion of growth hormone?
During chronic stress, what happens to the secretion of growth hormone?
Which of the following is NOT a manifestation of increased muscle tone during stress?
Which of the following is NOT a manifestation of increased muscle tone during stress?
What is the main goal of increased muscle contractions and muscle tone during stress?
What is the main goal of increased muscle contractions and muscle tone during stress?
Which of the following is NOT a sympathetic nervous system activation response to stress?
Which of the following is NOT a sympathetic nervous system activation response to stress?
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What is the effect of adrenaline on blood pressure?
What is the effect of adrenaline on blood pressure?
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Which hormone increases the threshold for pain during stress?
Which hormone increases the threshold for pain during stress?
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What is the main purpose of General Adaptation Syndrome (GAS)?
What is the main purpose of General Adaptation Syndrome (GAS)?
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Which of the following is NOT a component of stress response according to the text?
Which of the following is NOT a component of stress response according to the text?
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What defines a stressor according to the text?
What defines a stressor according to the text?
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Which factor influences the strength of stress response?
Which factor influences the strength of stress response?
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What are vulnerability factors related to in the text?
What are vulnerability factors related to in the text?
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What is the key goal of compensatory mechanisms activated in response to homeostasis disorders?
What is the key goal of compensatory mechanisms activated in response to homeostasis disorders?
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During the alarm stage of the General Adaptation Syndrome (GAS), what is the main hormone secreted by the hypothalamus that stimulates the secretion of ACTH?
During the alarm stage of the General Adaptation Syndrome (GAS), what is the main hormone secreted by the hypothalamus that stimulates the secretion of ACTH?
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What is a characteristic of the anti-shock phase during the alarm stage of GAS?
What is a characteristic of the anti-shock phase during the alarm stage of GAS?
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During the stage of resistance in GAS, what happens to the organism?
During the stage of resistance in GAS, what happens to the organism?
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What is a characteristic of the stage of adaptation (resistance) in GAS?
What is a characteristic of the stage of adaptation (resistance) in GAS?
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Which hormone secretion characterizes the anabolic stage of GAS?
Which hormone secretion characterizes the anabolic stage of GAS?
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What are some consequences of reaching the exhaustion stage in GAS?
What are some consequences of reaching the exhaustion stage in GAS?
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Study Notes
Growth Hormone and Stress
- Chronic stress leads to a decrease in growth hormone secretion, hindering growth and repair processes in the body.
Muscle Tone During Stress
- Increased muscle tone during stress is associated with enhanced readiness for fight-or-flight responses.
- The main goal of increased muscle contractions is to prepare the body for quick action in response to threats.
Sympathetic Nervous System Activation
- Responses NOT considered sympathetic nervous system activation include non-emergency physiological changes, such as increased digestion.
Adrenaline and Blood Pressure
- Adrenaline elevates blood pressure by constricting blood vessels and increasing heart rate, improving blood flow to vital organs.
Pain Regulation During Stress
- Cortisol increases the threshold for pain during stress, enabling greater endurance in challenging situations.
General Adaptation Syndrome (GAS)
- The purpose of GAS is to describe the body's adaptive response to stress, comprising three stages: alarm, resistance, and exhaustion.
Components of Stress Response
- Components often associated with stress response include increased heart rate, heightened alertness, and adrenaline release, while irrelevant responses are excluded.
Defining Stressors
- A stressor is defined as any physical or emotional trigger that elicits a stress response in the body.
Factors Influencing Stress Response
- Individual vulnerability factors, including genetics, past experiences, and current circumstances, significantly affect the strength of the stress response.
Compensatory Mechanisms
- The key aim of compensatory mechanisms activated in response to homeostasis disorders is to restore balance and system stability within the body.
Hormonal Secretions in GAS
- During the alarm stage of GAS, the main hormone secreted by the hypothalamus is corticotropin-releasing hormone (CRH), which stimulates ACTH secretion.
Anti-Shock Phase in Alarm Stage
- The anti-shock phase during the alarm stage is characterized by protective physiological changes, including increased heart rate and blood flow to vital organs.
Organism Response in GAS Resistance Stage
- In the resistance stage, the organism adapts to the stressor, mobilizing resources to maintain functionality and stave off fatigue.
Characteristics of Adaptation Stage
- The adaptation stage in GAS is marked by ongoing physiological adjustments to reduce the stress impact and maintain homeostasis.
Anabolic Stage Hormones
- Insulin and growth hormone secretion characterize the anabolic stage of GAS, promoting recovery and tissue repair following stress exposure.
Consequences of Exhaustion Stage
- Reaching the exhaustion stage in GAS can lead to severe health outcomes, including burnout, chronic fatigue, and increased vulnerability to illness.
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Description
Test your knowledge on disorders of homeostasis and the general adaptation syndrome, which involves the body's compensatory mechanisms to restore internal balance in response to stressors. Learn about the constancy of the internal environment and the negative and positive feedback loops involved.
