Physiology of amygdala

 

Amygdala is part of the limbic system.

Stimulating amygdala leads to

  • Increase/decrease in arterial pressure

  • Increase/decrease in heart rate

  • Increase/decrease in gastrointestinal motility and secretion

  • Defecation or micturition

  • Pupillary dilation or rarely constriction

  • Piloerection

  • Secretion of various anterior pituitary hormones mainly be gonadotropin and adrenocorticotropic hormones

It may also cause some involuntary movement such as

  • Tonic movements such as raising the head or bending the body

  • Circling movement

  • Occasional clonic, rhythmic movements

  • Different types of movements associated with olfaction and eating, such as licking, chewing and swallowing

  • Some areas cause rage etc, others sexual activity

Bilateral ablation causes Kluver Bucy syndrome


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Basic parts of brain 2  -3 D model


 

 

 

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