Macroscopic Anatomy of the Saimaa Ringed Seal ( Phoca hispida saimensis) Lower Respiratory Tract
ABSTRACT We studied the macroscopic anatomy of the lower respiratory tract of the endangered Saimaa ringed seal ( Phoca hispida saimensis ). Examination of one adult and one young individual found dead showed that trachea had 85 and 86 complete cartilage rings. The adjacent cartilages exhibited very...
| Published in: | The Anatomical Record |
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| Main Authors: | , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Wiley
2016
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.1002/ar.23316 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Far.23316 http://onlinelibrary.wiley.com/wol1/doi/10.1002/ar.23316/fullpdf |
| Summary: | ABSTRACT We studied the macroscopic anatomy of the lower respiratory tract of the endangered Saimaa ringed seal ( Phoca hispida saimensis ). Examination of one adult and one young individual found dead showed that trachea had 85 and 86 complete cartilage rings. The adjacent cartilages exhibited very few random anastomoses. There was variation in the confirmation of the trachea between the cranial and caudal part of the trachea. The right lung was divided by partly incomplete inter‐lobar fissures into cranial, middle, caudal, and accessory lobes. The left lung consisted of cranial, middle, and caudal lobes. The lungs were characterized by a high amount of interlobular connective tissue. Silicone casts were prepared of the two specimens to visualize the tracheobronchial branching which was similar to that of marine ringed seals but in the Saimaa ringed seal the right middle lobar bronchus originated at the same level as the accessory lobar bronchus. Anat Rec, 299:538–543, 2016. © 2016 Wiley Periodicals, Inc. |
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