Grade 12 Biology: The Stress Response
Explore the physiological mechanisms and impacts of the stress response in the human body at a Grade 12 Biology level.
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Grade 12 Biology: The Stress Response
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Read each question carefully and provide detailed answers based on your understanding of the human stress response system.
1. Which of the following hormones is primarily responsible for the 'fight-or-flight' response?
Cortisol
Adrenaline (Epinephrine)
Insulin
Thyroxine
2. The hypothalamus activates which two major systems during the stress response?
Digestive and Reproductive Systems
Somatic Nervous System and Lymphatic System
Sympathetic Nervous System and Hypothalamic-Pituitary-Adrenal (HPA) axis
Parasympathetic Nervous System and Immune System
3. The is often referred to as the 'stress hormone' due to its role in regulating blood glucose and suppressing immune function during prolonged stress.
4. During the acute stress response, heart rate and blood pressure to prepare the body for immediate action.
5. Chronic stress can lead to beneficial long-term adaptations in the immune system, making an individual less susceptible to illness.
True
False
6. Describe the role of the amygdala and hippocampus in the stress response.
7. Explain the concept of allostatic load and its potential health consequences.
8. Observe the diagram of the Human Nervous System below. Identify and label the components primarily involved in initiating and executing the acute stress response.
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