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A person entering an empty room suddenly finds a snake right in front on opening the door. Which one of the following is likely to happen in his neuro-harmonal control system?
Options
(a) Sympathetic nervous systemis activated releasing epinephrin and norepinephrin from 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 epinephrin and norepinephrin from adrenal cortex.
Correct Answer:
Sympathetic nervous systemis activated releasing epinephrin and norepinephrin from adrenal medulla.
Explanation:
Epinephrine and norepinephrine are secreted by adrenalmedulla in response to stress of any kind and during emergency situations and are called emergency hormones or hormones of flight, or fight.
Related Questions: - Effect of pollution is on
- The form of pigment which promotes germination is
- The main arena of various types of activities of a cell is:
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Topics: Locomotion and Neural Control
(33)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Effect of pollution is on
- The form of pigment which promotes germination is
- The main arena of various types of activities of a cell is:
- Sickle cell anaemia is:
- In Kreb’s cycle
Topics: Locomotion and Neural Control (33)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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