adrenal medulla


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Related to adrenal medulla: adrenal cortex

adrenal medulla

[ə′drēn·əl mə′dəl·ə]
(anatomy)
The hormone-secreting chromaffin cells of the adrenal gland that produce epinephrine and norepinephrine.
References in periodicals archive ?
Strick and his colleagues demonstrated that the control of the adrenal medulla originates from multiple cortical areas.
Arrows indicate adrenal medulla tissue and arrowheads adrenal cortex section.
Table 1: Clinical and Gross Features of Tumours of Adrenal Medulla Features Case 1 Case 2 Case 3 F 5 months M 3y M 2y Clinical Abdominal Abdominal Abdominal presentation mass mass, mass paraaortic lymphadenopathy Tumour 9x7x4 cm 8x5x5 cm, 9x7x6 cm size Tumour 196 g 144 g 288 g weight Margins Infiltrative Infiltrative Infiltrative Cut Solid, Grey Lobulated, surface grey white/ grey white/ brown white brown/ yellow Haemorrhage Present Present Present Necrosis Present Present Present Features Case 4 F 35y Case 5 F 41y Clinical Retro-peritoneal Hypertension presentation mass Tumour 6x4.
Pheochromocytoma and Paraganglioma originates from chromaffin cells of adrenal medulla and autonomic paraganglia, which are both derived from the neural crest cells.
Studies using these methods, have reported that hypertrophied adrenal medulla in trained subjects corresponds to a higher capacity to secrete catecholamine in response to exercise (1).
Paragangliomas and pheochromocytomas are tumors derived from the extra-adrenal paraganglia or adrenal medulla, respectively.
Our patient was 15 months old and the tumor originated from the adrenal medulla.
Adrenal medulla stress-induced cellular comunication
For example, adrenaline produced in the adrenal medulla and released in the early stress response triggers release of the vascular endothelial growth factor by stimulating the growth of blood vessels.
serrulatus envenomation are due to the action of neurotransmitters released by the autonomic nervous system and adrenal medulla in the organism.
Protein and peptide hormones are made in the hypothalamus, pituitary gland, adrenal medulla, and pancreas.
Histological examination confirmed the presence of a chromaffin cell-based lesion arising from the adrenal medulla, arranged in trabecular architecture with cyst formation.

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