Light, Scanning and Transmission Electron Microscopical Study on the Oviduct of the Ostrich (Struthio camelus)
نویسندگان
چکیده
منابع مشابه
Ultrastructure of ostrich (Struthio camelus) spermatozoa. II. Scanning electron microscopy.
The three-dimensional structure and size of ostrich sperm is unknown. In this study, the morphology and dimensions of ostrich sperm were determined by scanning electron microscopy of semen samples obtained from sexually mature males during the breeding season. The results indicate that sperm cells of the ostrich are of the sauropsid type characteristic of non-passerine birds and, in general app...
متن کاملLight and Ultrastructural Study of the Chordae Tendineae in the Heart of the Ostrich (Struthio camelus)
The chordae tendineae of the heart are collagenous strands which extend from the apical margin of papillary muscles of the heart to the various areas on the ventricular surface of the valve leaflets. They convey the contraction of the papillary muscles to the valve and so prevent the latter’s eversion. Eight hearts of the ostrich were collected, opened the left side of the heart and the length ...
متن کاملAnatomical study of the ostrich (Struthio camelus) foot locomotor system
The Ostrich is a native bird of Africa, and is highly accomplished in terrestrial locomotion in desert and grassland environments. The foot is an important segment in the ostrich body, critical for damping vibration, absorbing energy, and maintaining balance; however, detailed information on the ostrich foot is sparse. In this study, the gross anatomy of locomotor system of the ostrich foot was...
متن کاملHistomorphometric study of the spinal cord segments in the chick and adult male ostrich (Struthio camelus)
In this study, the vertical, transverse and oblique diameters of the spinal cord segments (C1, C6, C12, C18, T1, T4, L1, L4, L6 and L8) and the ratio of gray matter to white matter in chick (l month) and adult (18 months) male ostriches, each group consisted of 3 animals, were measured with standard micrometric method using 6 μm thick sections by light microscope. With advancement of age, the r...
متن کاملGross anatomy of the heart in Ostrich (Struthio camelus)
Today, with emphasis on the mechanical heart and heart transplantation from one human to another andone species to another, a knowledge of the anatomy of the bird’s heart could contribute to theseaccomplishments. Eight male adult ostriches were used to study the heart macroscopically. This studyrevealed that the ostrich heart has some different features from the other birds. In the ostrich, fib...
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ژورنال
عنوان ژورنال: Journal of Veterinary Anatomy
سال: 2009
ISSN: 2357-0504
DOI: 10.21608/jva.2009.42315