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  • Choose the incorrect statement  Option: 1 The adrenal medulla develops from the neuroectoderm. <p

Choose the incorrect statement

 

Option: 1

The adrenal medulla develops from the neuroectoderm.

 


Option: 2

Norepinephrine regulates the blood pressure under normal condition. 

 


Option: 3

Norepinephrine is called as emergency hormone as it is secreted during the time of emergency

 


Option: 4

The adrenal medulla consists of granular cells that are modified postganglionic cells of the sympathetic nervous system

 


Answers (1)

best_answer

Epinephrine or Adrenaline:

 

  • It is secreted at the time of emergency. Hence it is also called emergency hormone.

  • It has a greater effect on cardiac activity than norepinephrine.

  • It causes only weak con­striction of the blood vessels of the muscles in comparison with a much stronger constriction that results from norepinephrine.

  • Both adrenaline and noradrenaline act on the cells of skeletal, cardiac and smooth muscles and blood vessels and fat cells. 

  • Because of the role of their hormones, the adrenal glands are also called ‘glands of emergency’.

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