Psych M.D. - Adrenal Glands


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Term: Adrenal glands
Definition (Myers):a pair of endocrine glands just above the kidneys. The adrenals secrete the hormones epinephrine (adrenaline) and norepinephrine (noradrenaline), which help to arouse the body in times of stress.1
Definition (alternative): are the star-shaped endocrine glands that sit on top of the kidneys; their name indicates that position (ad-, "near" or "at" + renes, "kidneys"; and as concerns supra-, meaning "above"). They are chiefly responsible for regulating the stress response through the synthesis of corticosteroids and catecholamines, including cortisol and adrenaline (epinephrine), respectively.2
Contextual explanation: Adrenal glands are endocrine glands in the autonomic nervous system that controls arousal. These glands are responsible for the fight or flight response. When adrenaline is released from the adrenal glands, heart rate increasing, breathing increases, and blood rushes to the body to help the person either run from a dangerous situation or fight off the danger.
Related terms and concepts:
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Related websites:
Sources:
  1. Myers, D. G. (2004). Psychology. New York, New York: Worth Publishers.
  2. Adrenal gland - Wikipedia, the free encyclopedia. (n.d.). Retrieved October 22, 2009, from http://en.wikipedia.org/wiki/Adrenal_gland
  3. YouTube - Adrenal Glands Animation. (n.d.). Retrieved October 22, 2009, from http://www.youtube.com/watch?v=06jbq3bxKE0
Edited by: Sean
Date of last edit: 10/22/09



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