NEET 2012
- Exam
- NEET
- Year
- 2012
- Subject
- Zoology
- Chapter
- Chemical Coordination and Integration
NEET 2012 · Zoology · Chemical Coordination and Integration
A person entering an empty room suddenly finds a snake right in...
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 neurohormonal control system?
Options
- ASympathetic nervous system is activated releasing epinephrine and norepinephrine from adrenal medulla
- BNeurotransmitters diffuse rapidly across the cleft and transmit a nerve impulse
- CHypothalamus activates the parasympathetic division of brain
- DSympathetic nervous system is activated releasing epinephrine and norepinephrine from adrenal cortex
Correct answer
A. Sympathetic nervous system is activated releasing epinephrine and norepinephrine from adrenal medulla
Step-by-step solution
Epinephrine and nor-epinephrine are secreted by adrenal medulla (under the control of sympathetic nervous system) in response to stress of any kind or during emergency situations. These are also called emergency hormones or hormones of flight, fight and fright (triple F hormone).