Gross Anatomical Parameter of Extrapulmonary Respiratory System of Gaddi Goat

Abstract

The study was conducted on the extrapulmonary respiratory system of Gaddi goat. The samples were collected from apparently healthy 18 adult animals from the nearby slaughter houses. In Gaddi goats, the nostrils were slit like passages and were situated obliquely at rostral most part of the head. Nasal cavity of Gaddi goat was conical, slightly bloated in the centre. The nasal cavity had three nasal turbinate bones viz. dorsal, ventral and middle. The dorsal turbinate was the longest and widest one. Larynx was made up of unpaired epiglottis, thyroid and cricoid cartilages in anterio-posterior sequence and the paired arytenoid cartilages were placed rostro-dorsally. The apex of arytenoid cartilages did not show well defined corniculate process in Gaddi goat. The right apical bronchus originated at 37thor 38th ring. The tracheal bifurcation into two principle bronchi occurred at the level of 5th rib.