The sensory innervation of the spinal accessory and tongue musculature in the rabbit

✍ Scribed by James Yee; Frank Harrison; Kendall B. Corbin

• Publisher: John Wiley and Sons
• Year: 1939
• Tongue: English
• Weight: 478 KB
• Volume: 70
• Category: Article
• ISSN: 0021-9967
• DOI: 10.1002/cne.900700210

✦ Synopsis

The accessory muscles (sternomastoid, cleidomastoid and trapezius) of the cat receive their sensory (proprioceptive) innervation from the upper five cervical dorsal root ganglia (Corbin and Harrison, '38 a ) . These sensory fibers with cells of origin in (21 to C5 dorsal root ganglia pass to these muscles through the ventral rami both directly and after joining the accessory nerve. No evidence of a sensory component in the spinal accessory just external to the jugular foramen was found, in the cat, suggesting that the intraspinal and intracranial portions of this nerve are entirely motor.

Vsing similar physiological and histological techniques (oscillographic and degeneration experiments) as employed in the study of the above musculature, the same authors (Corbin and Harrison, '38 b) were unable to trace proprioceptire fibers from the tongue musculature of the cat. Because the literature hearing on the proprioceptive innervation of the accessory and tongue musculature was reviewed in the above papers (see also Straus and Howell, '3G), only the references pertinent to the subject in the rabbit, are included in this report.