Microanatomical Studies on Pineal Gland of Adult Ram
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Keywords:
Histology, Pineal Gland, RamAbstract
The pineal gland in adult ram was highly vascularised and showed a very thin capsule. Capsule was made up of collagen and reticular fibres with indistinct lobulation. The parenchyma consisted of pinealocytes and interstitial cells. The
neuroglial cells were categorised into three types viz., Type-1 cells were large, oval (or) round with one (or) two processes and distributed as small groups. The Type-2 cells had large, elongated (or) oval nuclei whereas Type-3 cells were smaller and
showed numerous fine processes mainly associated with blood vessels. PAS reaction was mild in the capsule, strong in pinealocytes and intense in blood vessels of the pineal gland. The pinealocytes and the interstitial cells showed an intense
reaction for acid phosphatase and very mild reaction for alkaline phosphatase.