9.6 POJA-L4388+2902
+2903.
Human pineal gland (I)
9.6 POJA-L4388+2902+2903
Title: Human pineal gland (I)
Description:
(A, B): Scheme. (C, D): Stain Azan. (A and C, 1) Pineal gland (or corpus pinealis, epiphysis cerebri), ventricular side.
(A and C, 2) Acervulus cerebri. (B, 3) Connective tissue septum. (B, 4) Glia cell. (B, 5) Pinealocyte.
The pineal gland is located in the last part of the third ventricle in the brains and is covered with the pia mater (capsule)
that provides the septa in which blood vessels and nerve fibers are embedded.
The so-called parenchyma (D) consists of pinealocytes, being modified nerve cells and producing melatonin from serotonin,
and the fibrous astrocytes or interstitial cells to be considered as specialized glia cells.
With increasing age concrements are found known as corpora arenacea or psammoma bodies or acervulus cerebri (brain sand).
The output of pineal melatonin is modulated by light through nervous pathways and determines circadian rhythms.
Keywords/Mesh: pineal gland, corpus pinealis, epiphysis cerebri, acervulus cerebri, psammoma body, corpus arenaceus, pinealocyte, melatonin, histology, POJA collection
Title: Human pineal gland (I)
Description:
(A, B): Scheme. (C, D): Stain Azan. (A and C, 1) Pineal gland (or corpus pinealis, epiphysis cerebri), ventricular side.
(A and C, 2) Acervulus cerebri. (B, 3) Connective tissue septum. (B, 4) Glia cell. (B, 5) Pinealocyte.
The pineal gland is located in the last part of the third ventricle in the brains and is covered with the pia mater (capsule)
that provides the septa in which blood vessels and nerve fibers are embedded.
The so-called parenchyma (D) consists of pinealocytes, being modified nerve cells and producing melatonin from serotonin,
and the fibrous astrocytes or interstitial cells to be considered as specialized glia cells.
With increasing age concrements are found known as corpora arenacea or psammoma bodies or acervulus cerebri (brain sand).
The output of pineal melatonin is modulated by light through nervous pathways and determines circadian rhythms.
Keywords/Mesh: pineal gland, corpus pinealis, epiphysis cerebri, acervulus cerebri, psammoma body, corpus arenaceus, pinealocyte, melatonin, histology, POJA collection