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  2. Adrenal gland - Wikipedia

    en.wikipedia.org/wiki/Adrenal_gland

    Adrenal glands, anterior (left) and posterior (right) surface. The adrenal glands are located on both sides of the body in the retroperitoneum, above and slightly medial to the kidneys. In humans, the right adrenal gland is pyramidal in shape, whereas the left is semilunar or crescent shaped and somewhat larger. [8]

  3. Ganglion cell - Wikipedia

    en.wikipedia.org/wiki/Ganglion_cell

    Examples of ganglion cells include: Retinal ganglion cell (RGC) found in the ganglion cell layer of the retina [1] Cells that reside in the adrenal medulla, where they are involved in the sympathetic nervous system's release of epinephrine and norepinephrine into the blood stream; Cells of the sympathetic ganglia; Cells of the parasympathetic ...

  4. Ganglion - Wikipedia

    en.wikipedia.org/wiki/Ganglion

    A ganglion (pl.: ganglia) is a group of neuron cell bodies in the peripheral nervous system. In the somatic nervous system , this includes dorsal root ganglia and trigeminal ganglia among a few others.

  5. Adrenal cortex - Wikipedia

    en.wikipedia.org/wiki/Adrenal_cortex

    The adrenal cortex is the outer region and also the largest part of the adrenal gland. It is divided into three separate zones: zona glomerulosa, zona fasciculata and zona reticularis. Each zone is responsible for producing specific hormones. It is also a secondary site of androgen synthesis. [2]

  6. Zona glomerulosa - Wikipedia

    en.wikipedia.org/wiki/Zona_glomerulosa

    H & E staining of the adrenal cortex. The zona glomerulosa is the outermost layer, below the renal capsule (near the pointer) In response to increased potassium levels, renin or decreased blood flow to the kidneys , cells of the zona glomerulosa produce and secrete the mineralocorticoid aldosterone into the blood as part of the renin ...

  7. Postganglionic nerve fibers - Wikipedia

    en.wikipedia.org/wiki/Postganglionic_nerve_fibers

    Another notable structure is the medulla of the adrenal gland, where chromaffin cells function as modified post-ganglionic nerves. Instead of releasing epinephrine and norepinephrine into a synaptic cleft, these cells of the adrenal medulla release the catecholamines into the blood stream as hormones. [ 1 ]

  8. Sympathoadrenal system - Wikipedia

    en.wikipedia.org/wiki/Sympathoadrenal_system

    Beginning in the sympathetic nervous system, an external stimulus affects the adrenal medulla and causes a release of catecholamines. The sympathoadrenal system is a physiological connection between the sympathetic nervous system and the adrenal medulla and is crucial in an organism's physiological response to outside stimuli. [ 1 ]

  9. Endocrine system - Wikipedia

    en.wikipedia.org/wiki/Endocrine_system

    The adrenal medulla is derived from ectodermal cells. Cells that will become adrenal tissue move retroperitoneally to the upper portion of the mesonephros. At seven weeks of gestation, the adrenal cells are joined by sympathetic cells that originate from the neural crest to form the adrenal medulla. At the end of the eighth week, the adrenal ...