psychology 

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Psychology Terms - Alimentary
pertaining to nourishment Related to nutrition or supplying sustenance.



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Psychology Terms - Alimentary
pertaining to nourishment Related to nutrition or supplying sustenance.


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Psychology Terms - Alimentary canal
The tube conduit extending from the mouth to the anus, facilitating the flow of food and the process of digestion, encompassing the *pharynx, *oesophagus, *stomach, *small intestine, and *large intestine. Also referred to as the digestive tract or gastrointestinal tract.


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Psychology Terms - Adrenaline rush
A quick surge in competitive motivation exhibited by an athlete or sports competitor, purportedly linked to the release of adrenaline into the bloodstream. This statement stems from a misconception on the effects of adrenaline and is eschewed in precise usage: A burst of noradrenaline or serotonin would be slightly more appropriate.


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Psychology Terms- Adrenal medulla
The medulla of the adrenal gland, comprising chromaffin cells that secrete adrenaline (epinephrine) and noradrenaline (norepinephrine) into the bloodstream in reaction to fear or stress.


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Psychology Terms - Adrenergic
Releasing adrenalin (epinephrine) or a comparable substance; also activated by or responsive to adrenalin or a similar substance, this extensive usage is prevalent yet consistently dismissed by the English physiologist Sir Henry Hallet Dale (1875–1968), who introduced the suffix -ergic, as well as by numerous other authorities.


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Psychology Terms - Adrenergic receptor
One of two categories of neuroreceptors for adrenalin (epinephrine) and noradrenalin (norepinephrine) located on a neuron, muscle, or gland. Alpha-adrenergic (α-adrenergic) receptors, located in the smooth muscles of blood vessels, elevate blood pressure through vasoconstriction, while beta-adrenergic (β-adrenergic) receptors, present in the membranes of cardiac muscle and the smooth muscles of the lungs and intestines, operate by engaging distinct second messenger pathways. Typically, alpha receptors are linked to the excitation of smooth muscles, while beta receptors are connected with inhibition; nevertheless, cardiac muscles possess excitatory beta receptors, and certain alpha receptors in the intestines exhibit inhibitory effects.


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Psychology Terms - Adrenocorticotrophic hormone (ACTH)
It is a hormone produced by the anterior pituitary that prompts the adrenal cortex to release steroid hormones, including cortisol (hydrocortisone), into the bloodstream, particularly in reaction to stress or injury. Also spelled adrenocorticotropic hormone. Also referred to as adrenocorticotropic hormone or corticotropin.


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