A Study of Tracheobronchial Tree Using Luminal Cast Plastination

Abstract

Fresh and well preserved specimens are a must in anatomy teaching. Plastination has emerged as a ray of hope for near ideal preservation of biological specimens. The study was conducted using fresh specimen of trachea and lungs of sheep obtained from the slaughter house to study the tracheobronchial tree using luminal plastination. On examination the plastinated specimen of sheep tracheobronchial tree shows trachea with its cartilaginous markings, division of trachea into principle bronchi, lobar bronchi, segmental bronchi upto the alveoli.Theplastinated specimen was near ideal and are excellent for teaching gross anatomy, neuroanatomy and radiology. Hence,these specimens can be used as a better teaching aid in schools, colleges and research institutes.

Using the silicon (luminal cast plastination technique) for the lower respiratory tract in sheep as an alternative to cement

“…In sheep [6,7] noticed that the right and left bronchi were clearly divided, the right lung showed and the main bronchus divided into apical and diaphragmatic bronchi, while the left lung showed only apical and diaphragmatic bronchi, fine bronchioles was clearly noticeable like the present study result [4]. The division of trachea into left and right bronchi, secondary and tertiary as well as lobulation were the investigation of [8,9,10,11] in sheepwhich had same results with the present study. in goat showed many similarities and deferences that association with the ramification and measurement were obtained with the present study in both animals, generally the present study showed that the ramification of the bronchial tree of the sheep lung which contained primary, secondary and tertiary, as well as, the bronchioles and terminal bronchioles were more than the goat, thus, our opinion that the efficiency of the sheep lung better than the goat lung [12].…”

“…In sheep recorded that the palatinate tracheobronchial tree revealed a cartilaginous trachea that divided into principal bronchi, lobar bronchi, segmental bronchi up to the alveoli [10]. recorded that the bronchial cast technique showed a bronchus which is given off from the trachea and separated into right and left principal bronchi and then each bronchus subdivided into bronchioles [11].…”