Bauhaus-Universität Weimar

Concerning the Positions of Paralyzed Vocal Bands [Reprinted from the New York Medical Journal for June 5, 1886, Offprint]
Hooper, Franklin H.
It will be seen that the larynx has been turned out of the 
neck, and is supported in a perpendicular position by a cord 
attached to a horizontal cross-bar above. It has been sepia- 
rated from the hyoid bone, and the soft parts laterally have 
been divided, Jno large blood-vessels have been cut, and 
the recurrent laryngeal nerves are intact. The respiratory 
movements of the vocal bands go on as normally and as 
rhythmically as if the larynx had not been touched. This 
method was employed by Longet, and we have been sur¬ 
prised to see it referred to as a “ grausame Erfahrung.5’ 
Properly performed, it is not such, and we know of no bet¬ 
ter way of studying the actions of the intrinsic laryngeal 
muscles. It is a method, moreover, that can be utilized for 
class demonstration, and wre venture to think that, if more 
would study these muscles in this manner, there would he 
greater unanimity of opinion in regard to their functions. 
The sides of the thyroid cartilage can be cut away, so that 
all the muscles are easily reached. Even after the death of 
the animal the muscles retain their contractility for about 
half an hour. The mucous membrane having been stripped 
from them, each one can in turn he stimulated by means of 
an electrode arranged like a forceps, so that its platinum


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