Question:
During stressful situations, the adrenal gland releases large amounts of into the blood stream.
During stressful situations, the adrenal gland releases large amounts of into the blood stream.
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Stress: hormones released by the adrenal gland are catecholamines (adrenaline and noradrenaline). Option 1.
Updated On: Oct 1, 2026
- Catecholamines
- Monoamines
- GABA
- Dopamine
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The Correct Option is A
Solution and Explanation
Step 1: Understanding the Concept:
The body reacts to a threat through the sympathetic nervous system and the adrenal glands. The inner part of the adrenal gland (the adrenal medulla) is the part that responds first.
Step 2: Key Fact:
When a person feels stressed, the adrenal medulla pours out the hormones adrenaline (epinephrine) and noradrenaline (norepinephrine). These two hormones together are called catecholamines. They raise the heart rate and blood pressure and prepare the body for fight or flight.
Step 3: Check option (1) Catecholamines.
This is the group that contains adrenaline and noradrenaline, which the adrenal gland releases in large amounts under stress. So option (1) is correct.
Step 4: Check option (2) Monoamines.
Monoamines is a wide chemical class of neurotransmitters (it includes serotonin and the catecholamines). It is not the name the textbook gives for the adrenal stress hormones, so (2) is not the best answer.
Step 5: Check option (3) GABA.
GABA is an inhibitory neurotransmitter in the brain. It calms nerve activity and is not released by the adrenal gland, so (3) is wrong.
Step 6: Check option (4) Dopamine.
Dopamine is a single catecholamine that works mainly as a brain neurotransmitter linked to reward and movement. The large stress release from the adrenal gland is described as catecholamines, so (4) is wrong.
Final Answer:
The adrenal gland releases catecholamines (adrenaline and noradrenaline) during stress. This is option (1).
The body reacts to a threat through the sympathetic nervous system and the adrenal glands. The inner part of the adrenal gland (the adrenal medulla) is the part that responds first.
Step 2: Key Fact:
When a person feels stressed, the adrenal medulla pours out the hormones adrenaline (epinephrine) and noradrenaline (norepinephrine). These two hormones together are called catecholamines. They raise the heart rate and blood pressure and prepare the body for fight or flight.
Step 3: Check option (1) Catecholamines.
This is the group that contains adrenaline and noradrenaline, which the adrenal gland releases in large amounts under stress. So option (1) is correct.
Step 4: Check option (2) Monoamines.
Monoamines is a wide chemical class of neurotransmitters (it includes serotonin and the catecholamines). It is not the name the textbook gives for the adrenal stress hormones, so (2) is not the best answer.
Step 5: Check option (3) GABA.
GABA is an inhibitory neurotransmitter in the brain. It calms nerve activity and is not released by the adrenal gland, so (3) is wrong.
Step 6: Check option (4) Dopamine.
Dopamine is a single catecholamine that works mainly as a brain neurotransmitter linked to reward and movement. The large stress release from the adrenal gland is described as catecholamines, so (4) is wrong.
Final Answer:
The adrenal gland releases catecholamines (adrenaline and noradrenaline) during stress. This is option (1).
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