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7th ed. This article will look at the anatomy of the tonsils including the blood supply and innervation, as well as some histological anatomy and embryological development. Wondering how you can study the tonsils as efficiently as possible? The palatine tonsils are dense compact bodies of lymphoid tissue that are located in the lateral wall of the oropharynx, bounded by the palatoglossus muscle anteriorly and the palatopharyngeus and superior constrictor muscles posteriorly and laterally.

To quickly remember this, you can use the following mnemonic: "PPL have Tonsils", standing for Palatine, Pharyngeal, Lingual, Tubal. A few fibers of the palatopharyngeus are found in the tonsil bed and are attached to the lower part of the capsule along with the fibers of the palatoglossus. In case of recurrent, persistent and enlarged tonsils problems, surgical removal is recommended. We will also discuss function and clinical relevance. The tonsil consists of a mass of lymphoid follicles supported by a connective tissue framework.

The adenoid receives its nerve supply from the pharyngeal plexus.

Tonsils are small organs in the back of the throat. Find out what it is and how you can sart using it to ace anatomy right now.

The outer aspect of tonsil is lined by condensed capsule formed by the pharyngobasilar fascia a specialised portion (it is also known to course the surface of the tonsil and extend into it to form septa that conduct nerves and vessels), deep to which lie the superior constrictor muscle, lateral to which is the bucco pharyngeal fascia. The anterior pillar is formed by palato glossus muscle, the posterior pillar is formed by palato pharyngeus muscle. 17th ed. Microscopically, the tonsil is a mass of lymphoid follicles supported on a connective tissue framework. [2]. All rights reserved. 619-631. It is almond shaped and lie on either side of the oropharynx. Kim Bengochea, Regis University, Denver, Author: 3rd ed.

Four types of tonsils are arranged into a ring around the pharynx (oropharynx and nasopharynx), known as Waldeyer’s ring of lymphoid tissue.

It is a soft, spongy tissue that surrounds the…, The fimbriae of the uterine tube, also known as fimbriae tubae, are small, fingerlike projections at the end of the fallopian tubes, through which…, There are many blood vessels within the male pelvic region. [2] Tonsillar crypts may contain desquamated epithelial debris and cells. Corinne Savides Happel, MD, is board-certified in allergies/immunology, with a focus on allergic skin disorders.

At the fifth or sixth year of life, the tonsils rapidly increase in size, reaching their maximum size at puberty. All these structures of the inner Waldayer's ring are inter linked. Tonsils and adenoids, anterior and sagittal view.

– The palatine tonsils are located at the back of the throat. Grounded on academic literature and research, validated by experts, and trusted by more than 1 million users.


These tonsils are located just posterior to the opening of the Eustachian tube (the torus tubaris) in the nasopharynx. This article will look at the anatomy of the tonsils including the blood supply and innervation, as well as some histological anatomy and embryological development. [2], The adenoid develops as a midline structure by fusion of 2 lateral primordia that become visible during early fetal life. These are the most superior tonsils that lie in the superior part of the nasopharynx.

Video courtesy of Ravindhra G Elluru, MD, PhD. Many are there to supply the lower half of the body but many supply the male reproductive…, The ductus deferens, or the vas deferens, is a male anatomical part; there are two of these ducts and their purpose is to carry ejaculatory sperm out…, The spermatic cord is actually a bundle of fibers and tissues that form a cord-like structure that runs through the abdominal region down to the…, The prostatic plexus is a relatively large bundle of nerves that arises from the inferior (lower) portion of the pelvic plexus, a bundle of nerves….

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