This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1906 Excerpt: ... The pharynx, or throat, receives the food from the mouth. It occupies a space in front of the spinal column from the base of the skull to the fifth cervical vertebra, its roof being formed by the body of the sphenoid bone, joined to the occipital. The walls of the pharynx consist of three pairs of muscles called the ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1906 Excerpt: ... The pharynx, or throat, receives the food from the mouth. It occupies a space in front of the spinal column from the base of the skull to the fifth cervical vertebra, its roof being formed by the body of the sphenoid bone, joined to the occipital. The walls of the pharynx consist of three pairs of muscles called the con stridors, --upper, middle, and lower, strengthened by a fibrous layer and lined with mucous membrane. The illustration shows that the constrictors are flat muscles attached at the sides to the structures in front of the pharynx. Thus, from above downward, their origin is on the pterygoid process, a special ligament, the mandible, side of the tongue, hyoid bone, thyroid and cricoid cartilages. The fibers all join a fibrous line, or raphe, at the back, which is suspended from the base of the occipital bone. This is their insertion. By due contraction of these muscles the food is grasped and pressed downward into the esophagus. The upper part of the pharynx is behind the nose and is called the nasal part, or naso-pharynx. The middle part is behind the mouth and is called the oral part, or oro-pharynx. The lower part is behind the larynx and is called the laryngeal part, or the laryngopharynx. The openings of the pharynx are the two choance (posterior nares) communicating with the nose; the two Eustachian (auditory) THE STOMACH. 121 tubes communicating with the ears, and the space between the pillars of the fauces where it communicates with the mouth. Below this, it communicates with the larynx, the opening being guarded by the epiglottis. The food passes through the oropharynx and laryngo-pharynx, the nasotpharynx being an airt passage. The esophagus (Figs. 103,107) begins at the lower end of the pharynx and extends downward in front of the spi..
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Add this copy of Text-Book of Anatomy for Nurses to cart. $59.74, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Newport Coast, CA, UNITED STATES, published 2016 by Palala Press.