9.5 POJA-La0225+L4386+2873+3519
Title: Adrenal gland (glandula suprarenalis) (I)
Description:
The adrenal gland in (A and C, stain Azan, human) and in (B, scheme, human) consists of a capsule (1), a cortex (2+3+4), a medulla (5).
The cortex is subdivided in a zona glomerulosa (2), a zona fasciculata (3) and a darkly stained zona reticularis (4). Note the capillaries (6)
in the reticular zone. The medullary vein (7) is often of the muscular type. (8) Capillary.
(D): Adrenal gland, LDH (lactate dehydrogenase) enzyme histochemistry, mouse. The LDH activity profile shows most activity in the glomerular zone, marking the energy activity (oxidation of lactate to pyruvate).
The adrenal cortex produces steroid hormones from cholesterol (androgens, aldosterone, and cortisol).
The cortex is activated or regulated by pituitary hormones as well as by the renin-angiotensin system.
- The zona glomerulosa secretes mineralocorticoids, aldosterone and deoxycorticosterone (DOC).
- The zona fasciculata secretes glucorticoids (GCs), (cortisol and corticosterone and less dehydroepiandrosterone DHA).
- The zona reticularis produces androgens (DHEA, androstenedione) and some glucocorticoids.
The adrenal medulla is a neuroendocrine organ and produces adrenalin (epinephrine) and noradrenalin.
The medulla is directly innervated or regulated by nerve cells (ganglion cells).
They are responsible for releasing hormones in response to stress.
Keywords/Mesh: adrenal gland, cortex, medulla. hormone, lactate dehydrogenase, histology, POJA collection
Title: Adrenal gland (glandula suprarenalis) (I)
Description:
The adrenal gland in (A and C, stain Azan, human) and in (B, scheme, human) consists of a capsule (1), a cortex (2+3+4), a medulla (5).
The cortex is subdivided in a zona glomerulosa (2), a zona fasciculata (3) and a darkly stained zona reticularis (4). Note the capillaries (6)
in the reticular zone. The medullary vein (7) is often of the muscular type. (8) Capillary.
(D): Adrenal gland, LDH (lactate dehydrogenase) enzyme histochemistry, mouse. The LDH activity profile shows most activity in the glomerular zone, marking the energy activity (oxidation of lactate to pyruvate).
The adrenal cortex produces steroid hormones from cholesterol (androgens, aldosterone, and cortisol).
The cortex is activated or regulated by pituitary hormones as well as by the renin-angiotensin system.
- The zona glomerulosa secretes mineralocorticoids, aldosterone and deoxycorticosterone (DOC).
- The zona fasciculata secretes glucorticoids (GCs), (cortisol and corticosterone and less dehydroepiandrosterone DHA).
- The zona reticularis produces androgens (DHEA, androstenedione) and some glucocorticoids.
The adrenal medulla is a neuroendocrine organ and produces adrenalin (epinephrine) and noradrenalin.
The medulla is directly innervated or regulated by nerve cells (ganglion cells).
They are responsible for releasing hormones in response to stress.
Keywords/Mesh: adrenal gland, cortex, medulla. hormone, lactate dehydrogenase, histology, POJA collection