Search results
Results From The WOW.Com Content Network
Dopamine is the primary neuroendocrine inhibitor of the secretion of prolactin from the anterior pituitary gland. [50] Dopamine produced by neurons in the arcuate nucleus is secreted into the hypophyseal portal system of the median eminence, which supplies the pituitary gland. [50]
It is located at the center of the gland, being surrounded by the adrenal cortex. [1] It is the innermost part of the adrenal gland, consisting of chromaffin cells that secrete catecholamines , including epinephrine (adrenaline), norepinephrine (noradrenaline), and a small amount of dopamine , in response to stimulation by sympathetic ...
Tuberoinfundibular pathway shown in opaque blue, connecting that hypothalamus with the pituitary gland. The tuberoinfundibular pathway refers to a population of dopamine neurons that project from the arcuate nucleus (a.k.a. the "infundibular nucleus") in the tuberal region of the hypothalamus to the median eminence. [1]
Dopaminergic cell groups, DA cell groups, or dopaminergic nuclei are collections of neurons in the central nervous system that synthesize the neurotransmitter dopamine. [1] In the 1960s, dopaminergic neurons or dopamine neurons were first identified and named by Annica Dahlström and Kjell Fuxe, who used histochemical fluorescence. [2]
The dopamine neurons of the dopaminergic pathways synthesize and release the neurotransmitter dopamine. [2] [3] Enzymes tyrosine hydroxylase and dopa decarboxylase are required for dopamine synthesis. [4] These enzymes are both produced in the cell bodies of dopamine neurons. Dopamine is stored in the cytoplasm and vesicles in axon terminals.
English: Skeletal formula of dopamine (DA) — one of the major neurotransmitters of central and peripheral nervous system. Date 2 May 2006 (original upload date)
The pituitary gland (or hypophysis) is an endocrine gland about the size of a pea and weighing 0.5 grams (0.018 oz) in humans. It is a protrusion off the bottom of the hypothalamus at the base of the brain, and rests in a small, bony cavity (sella turcica) covered by a dural fold (diaphragma sellae).
Dopamine receptors are implicated in many neurological processes, including motivational and incentive salience, cognition, memory, learning, and fine motor control, as well as modulation of neuroendocrine signaling. Abnormal dopamine receptor signaling and dopaminergic nerve function is implicated in several neuropsychiatric disorders. [2]