กล่องเสียง ภาษาอังกฤษ

"There is one thing, among abundance of others, in Anatomy, which has always much affected me with Admiration, [...] It is the Situation and Elaſticity of the Epiglottis, a ſoft Cartilaginous Cover to the Larynx, or Orifice of the Wind-pipe; that this Epiglottis ſhould, all a Man's life, be drawn up, for the Benefit of Reſpiration, and fall down and ſhut, whilſt every bit we eat, and every drop we drink, paſſes over it into the Gullet and Stomach; and that we ſhould ſo ſeldom have Occaſion to cough up a crum, or drop, that may accidentaly ſlip into the Larynx; [...]"

"The larynx is the instrument of the voice, of which the rima glottidis is the immediate organ. [...] The change of the voice from acute to grave at the time of puberty, when the larynx undergoes a remarkable development, as well as its acuteness in females, whose glottis is less by one third than that of man, shew that the size of the aperture has a great influence."

"The differences in the voices of man and woman cannot but have been always obſerved; and their larynxes exhibit, on a merely ſuperficial inſpection, a great diſproportion in ſize."