Histomorphological and histochemical studies on the muscle spindle in the diaphragm of the buffalo bubalus bubalis

Roy, K.S.; Das, L.N.

Indian Journal of Animal Sciences 55(5): 316-321


ISSN/ISBN: 0367-8318
Accession: 005580750

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Histomorphological and histochemical investigations were made on muscle spindle in the diaphragm of 10 male buffaloes. Typical muscle spindles were observed in crural, costal and sternal parts. Holme's stain revealed nerve endings among the intrafusal fibers. PAS[periodic acid-Schiff]-positive materials, glycogen, lipid and phospholipids were seen in inter-myofibrillar areas. Two types of intrafusal fibers were noticed. Type I intrafusal fibers had low activity for acid phosphatase, ATPase and phosphorylase, but high activity for succinic dehydrogenase. Acetylcholinesterase-positive motor end plates and nerve endings were also observed. Alkaline phosphatase-positive capillaries were present in the capsule and around the intrafusal fibers.