Remedies for Tonsil Problem Biology Diagrams The pharyngeal tonsil, also known as the adenoids, is the most superior component of the pharyngeal lymphoid ring and lies in the superior part (vault) of the nasopharynx.It is attached to the periosteum of the sphenoid bone by connective tissue.The pharyngeal tonsil is covered with ciliated pseudostratified columnar (i.e. respiratory) epithelium. The covering capsule is thinner compared to The two main types of tonsils are the palatine tonsils, which are the ones commonly referred to as "tonsils," and the pharyngeal tonsils, also known as the adenoids. Palatine Tonsils. The palatine tonsils are clusters of lymphatic tissue consisting of lymphocytes, macrophages, and other immune cells.
Pharyngeal tonsil (medial view) The adenoid is a pyramidal shaped structure composed of lymphoid tissue. The apex of this pyramid is extended towards the to nasal septum, and the base sits at the posterior most wall of the nasopharynx. The adenoidal surface is invaginated by a number of folds with some crypts.There is a midline pharyngeal bursa (bursa of Luschka) which extends posteriorly and
Anatomy and physiology of the palatine tonsils, adenoids, and lingual ... Biology Diagrams
The adenoids exist as a rectangular mass of lymphatic tissue in the nasopharynx. Meyer first described this mucosa-associated lymphoid tissue in 1868. The adenoids are midline structures situated on the roof and posterior wall of the nasopharynx. They form part of the Waldeyer ring, whose components include the adenoids, the palatine tonsils, and the lingual tonsils. They are present from the
Tonsils are lymphoid tissue aggregates situated near the entrance of the digestive and respiratory tracts and play a key role in our immune system. They act as a front-line defense forming the initial immunological response to inhaled or ingested pathogens. The lymphatic tissues located in the oropharynx are composed of a circumferential tonsillar ring, known as the Waldeyer's ring which
Adenoids: Anatomy, location and function Biology Diagrams
Enlarged (hypertrophic) tonsils. Larger-than-normal tonsils can block your airway, leading to snoring or sleep apnea. Tonsil cancer. The most common form of oropharyngeal cancer, tonsil cancer is often linked to the human papillomavirus. Symptoms include tonsil pain, a lump in your neck and blood in your saliva (spit).
