A person entering an empty room suddenly finds a snake right in front of him.Which one of the following is likely to happen in his neurohormonal control system?
Correct answer: A. The sympathetic nervous system is activated releasing epinephrine and norepinephrine from the adrenal medulla
- A. The sympathetic nervous system is activated releasing epinephrine and norepinephrine from the adrenal medulla
- B. Neurotransmitters diffuse rapidly across the cleft and transmit a nerve impulse.
- C. Hypothalamus activates the parasympathetic division of brain
- D. Sympathetic nervous system is activated releasing epinephrine and norepinephrine from the adrenal cortex.
Explanation
Hormones epinephrine and norepinephrine are secreted from the adrenal medulla. They are emergency hormones released in conditions of stress, emergency, etc. Epinephrine and norepinephrine are also released by adrenergic nerve fibres of the sympathetic nervous system, where they act as neurotransmitters.
Last updated
Related questions
A chemical signal that has both endocrine and neural roles is:
A lesion to which brain region would result in a lack of coordinated movement?
A man has to face an interview, but during his first five minutes before the interview, he experiences sweating, increased heart rate, and respiration. Which hormone is responsible for his restlessness?
A patient who is unable to modulate his own ventilation and heart rate may be suffering damage to which part of his brain?
A person who has over-functioning pancreatic alpha cells may display what clinical feature?