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"The head is represented as having been thrown back, and the tongue drawn forward. <em>A</em>, <em>B</em> and <em>C</em>, cainine; <em>D, E</em> bicuspids; <em>F, H, K,</em> molars; <em>M</em> anterior pillar of the fauces; <em>N</em>, tonsil; <em>L</em> uvula; <em>O</em>, upper part of the pharynx; <em>P</em>, tongue drawn forward; <em>R</em> linear ridge, or raphe</em>." &mdash; Blaisedell, 1904

Back view of the adult mouth

"The head is represented as having been thrown back, and the tongue drawn forward. A, B…

Sagittal section through mouth, tongue, larynx, pharynx, and nasal cavity. The section was slightly oblique, and the posterior edge of the nasal septum has been preserved. The specimen is viewed slightly from below, hence the apparently low position of the inferior turbinated bone.

Section of the Head and Neck

Sagittal section through mouth, tongue, larynx, pharynx, and nasal cavity. The section was slightly…

Open mouth showing palate and tonsils. It also shows the two palatine arches, and the pharyngeal isthmus through which the nasopharynx above communicates with the oral portion of the pharynx below.

Mouth Showing Palate and Tonsils

Open mouth showing palate and tonsils. It also shows the two palatine arches, and the pharyngeal isthmus…

Antero-inferior surface of the soft palate. The tongue has been removed, so that the pharyngeal isthmus is distinctly seen.

Mouth, Cavity of the

Antero-inferior surface of the soft palate. The tongue has been removed, so that the pharyngeal isthmus…

<em>A</em>, epiglottis; <em>B</em>, glands at the base of tongue; <em>C</em>, tonsil; The various kinds of papillae are plainly shown." &mdash; Blaisedell, 1904

Tongue

A, epiglottis; B, glands at the base of tongue; C, tonsil; The various kinds…

The papillar surface of the tongue, with the fauces and tonsils. Labels: 1, circumvallate papillae, in front of 2, the foramen caecum; 3, fungiform papillae; 4, filiform and conical papillae; 5, transverse and oblique rugae; 6, mucous glands at the base of the tongue and in the fauces; 7, tonsils; 8, part of the epiglottis; 9, median glosso-epiglottidean fold (fraenum epiglottidis).

Tongue

The papillar surface of the tongue, with the fauces and tonsils. Labels: 1, circumvallate papillae,…

Diagram of the pillars of the fauces and of the tonsils.

Tonsil and Pillars of the Fauces

Diagram of the pillars of the fauces and of the tonsils.

Tonsil of the nasopharynx of a boy aged 2 years.

Tonsil of the Nasopharynx

Tonsil of the nasopharynx of a boy aged 2 years.

A tonsil consists of an elevation of the mucous membrane presenting 12 to 15 orifices which lead into crypts or recesses, in the walls of which are placed nodules of adenoid or lymphoid tissue. Shown is a vertical section through a crypt of the human tonsil. Labels: 1, entrance to the crypt; 2 and 3, the framework or adenoid tissue; 4, the enclosing fibrous tissue; a and b, lymphatic follicles; 5 and 6, blood vessels.

Crypt of Tonsil

A tonsil consists of an elevation of the mucous membrane presenting 12 to 15 orifices which lead into…