Sternothyroid muscle

Dscn1802.jpg (83428 bytes) Dscn1803.jpg (79218 bytes) Ventral view, left side

Cat information:
 origin:  first costal cartilage deep to the

 insertion:  lateral half of cranial boder of
          thyroid cartilage
 nerve:  hypoglossal (XII) and ventral ramus of C1
 action:  draws larynx caudally

Human information:
origin:  posterior surface of manubrium
insertion:  thyroid cartilage
nerve:  anterior rami of C1-C3
        through ansa cervicalis
action:  depress larynx and hyoid