adrenal medulla Definition på svenska

Examples of adrenal medulla

• Neuroblastoma and pheochromocytoma are the two most important tumors which arise from the adrenal medulla.

• The adrenal medulla is derived from ectodermal cells.

• They are concentrated near the adrenal glands and essentially function the same way as the adrenal medulla.

• The adrenal medulla is considered a sympathetic ganglion and, like other sympathetic ganglia, is supplied by cholinergic preganglionic sympathetic fibers; acetylcholine is its neurotransmitter.

• In the adrenal medulla, acetylcholine is used as a neurotransmitter, and the receptor is of the "nicotinic" type.

• At seven weeks of gestation, the adrenal cells are joined by sympathetic cells that originate from the neural crest to form the adrenal medulla.

• The neural crest of the ectoderm develops into: peripheral nervous system, adrenal medulla, melanocytes, facial cartilage, dentin of teeth.

• These substances are released in the adrenal medulla, which is richly vascular.