Cervical Region 
Lanfnx et Trachea 
Figure 3-13: Diagram of trachea and larynx, including thyroid and parathyroid 
glands. A, ventral view; B, dorsal vievi/; C, internal view. 
Figure 3-14: Isolated trachea with larynx Figure 3-15: Isolated trachea with larynx 
and bifurcation, dorsal view. Open ends of and bifurcation, ventral view, demonstrat- 
C-shaped tracheal rings connected by thin, ing 14 well-defined cartilaginous rings. 
transverse muscle fibers. At caudal end of 
larynx, dark red thyroid glands are visible, 
with small white parathyroid glands on 
surface. 
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