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Sense-Organs susceptible to Pressure

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Sense-Organs susceptible to Pressure.jpg The External, Middle, and Internal Ear of the Left SideMiniaturesThe Formation of an Image by the Refracting Media of the EyeThe External, Middle, and Internal Ear of the Left SideMiniaturesThe Formation of an Image by the Refracting Media of the EyeThe External, Middle, and Internal Ear of the Left SideMiniaturesThe Formation of an Image by the Refracting Media of the EyeThe External, Middle, and Internal Ear of the Left SideMiniaturesThe Formation of an Image by the Refracting Media of the EyeThe External, Middle, and Internal Ear of the Left SideMiniaturesThe Formation of an Image by the Refracting Media of the Eye
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All are formed on essentially the same plan; a fibrous capsule invests a group of epithelial cells amongst which a nerve ramifies. The simplest form is known as a Grandry’s corpuscle-a nerve ending in one or two plates between two or three epithelial cells. These organs are found in great numbers in the bills of aquatic birds. If a duck is watched whilst it is gobbling mud at the margin of a pond, it will be seen to have a remarkable capacity for discriminating between the shells of small snails, which it can crush, and stones, which it needs to drop from its bill. Its bill is also provided with small Pacinian corpuscles.

Auteur
The Body at Work
by Alexander Hill
Published 1908
Available from gutenberg.org
Dimensions
900*538
Mots-clés
human
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