Accession Number : AD0756709

Title :   Vestibular Ampullary Structures in the Pigeon: A Scanning Electron Microscope Overview.

Descriptive Note : Research paper,

Corporate Author : DEFENCE AND CIVIL INST OF ENVIRONMENTAL MEDICINE DOWNSVIEW (ONTARIO)

Personal Author(s) : Landolt,Jack P. ; Young,Eric R. ; Correia,Manning J.

Report Date : 17 JUL 1972

Pagination or Media Count : 14

Abstract : A scanning electron microscope (SEM) was used to explore the complex surface features of the ampullary structures in the vestibular apparatus of the pigeon. The depth perspective inherent in SEM microscopy enabled: three-dimensional views of major ampullary structures such as the crista ampullaris, eminentia cruciata, and the planum semilunatum; identification of a tongue-like structure, the 'lingula,' that is part of the eminentia cruciata; the observation that the base of the eminentia is a projection of the crista ampullaris and not a structural partition; and evidence that the lingulae, together with the torus, partition the crista into two separate regions. The morphology of the cells and gross ampullary structures observed with SEM are compared to those obtained using light microscopy and where advantageous, complimentary light photomicrographs are presented. (Author Modified Abstract)

Descriptors :   (*VESTIBULAR APPARATUS, ELECTRON MICROSCOPY), (*BIRDS, VESTIBULAR APPARATUS), ANATOMY, MORPHOLOGY(BIOLOGY), CYTOLOGY, HISTOLOGY, MICROSCOPY, CANADA

Subject Categories : Anatomy and Physiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE