Pharyngeal Tonsils
Pharyngeal Tonsils - Related Videos
08:09
Efficient Isolation Protocol for B and T Lymphocytes from Human Palatine Tonsils
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Cited by 11 •
2015
Palatine tonsils are a rich source of B and T lymphocytes. Here we provide an easy, efficient and rapid protocol to isolate B and T lymphocytes from human palatine tonsils. The method described has been specifically adapted for studies of the viral etiology of tonsil inflammation known as tonsillitis.
01:30
Tonsillitis I: Introduction
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2024
Tonsillitis is inflammation of the tonsils, which are two lymphoid tissue masses at the back of the throat. This condition can cause discomfort and irritation in the throat. Etiology Three primary contributing factors have been identified. • Viruses: Viral infections are the most common cause of tonsillitis. Common viruses responsible for tonsillitis include rhinovirus, influenza, parainfluenza, Epstein-Barr virus, and adenovirus. • Bacteria: The predominant bacterium responsible for...
01:26
Tonsillitis II: Management
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2024
This lesson will focus on the different treatment options for managing tonsillitis, which typically depend on the cause and severity. • Acute viral tonsillitis treatment usually involves outpatient supportive management, including analgesia (acetaminophen) and oral hydration, corticosteroids (dexamethasone), salt-water gargles, and rest. • Bacterial tonsillitis is typically treated with penicillin as the primary choice, although cephalosporins can also be effective. Antibiotic therapy with...
01:30
Acute Pharyngitis
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2025
Introduction Acute pharyngitis is the inflammation of the back of the throat (pharynx), commonly resulting in a sore throat. It is a frequently encountered condition that prompts individuals to seek medical advice. Classification Acute pharyngitis can be categorized based on its underlying cause: • Viral: Accounting for 40% to 60% of cases, viral infections are the most prevalent cause. Common cold viruses, influenza, adenovirus, and Epstein-Barr virus (mononucleosis) are among the most...
01:23
Chronic Pharyngitis
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2025
Chronic pharyngitis refers to persistent inflammation of the pharyngial mucosa. Etiology It often arises from persistent viral or bacterial infections affecting sinuses and tonsils. Additional contributing factors include inadequate dental hygiene, mouth breathing, recurring tonsillitis, allergic rhinitis, laryngopharyngeal reflux, and exposure to smoke, chemicals, and other environmental pollutants. Allergic reactions to pollen, mold, and pet dander, chronic cough, excessive voice usage,...
FAQs
Mucus carries inhaled or swallowed antigens toward the lymphoid tissue. Immune cells in the pharyngeal tonsils sample these materials and can activate lymphocytes. This activation supports antibody production and other defensive responses, allowing the tissue to participate in surveillance at mucosal surfaces exposed to both respiratory and digestive tract threats.
Antigen sampling gives immune cells information about material entering through the nose or mouth rather than relying only on responses deeper in the body. By recognizing these carried antigens, the tissue can initiate lymphocyte activity and contribute to localized defense. This makes the tonsils a useful model for studying mucosal immunity.
Immune activity can cause these tonsils to enlarge, particularly in children, but enlargement becomes consequential when it is excessive. Increased tissue can obstruct nasal airflow or interfere with drainage from the middle ear. Thus, size is not only an anatomical observation; it can influence breathing and ear-related clinical assessment.
Evaluation considers whether enlarged adenoid tissue is affecting functions associated with its location. In particular, clinicians may assess possible obstruction of nasal airflow and interference with middle-ear drainage. These consequences help connect the local immune activity of the tissue with practical clinical decisions about adenoid evaluation or removal.
Removal may enter clinical decision-making when enlargement is excessive enough to obstruct nasal airflow or interfere with middle-ear drainage. The rationale is functional rather than simply the presence of lymphoid tissue: the same tissue that participates in immune defense can create problems when its size disrupts nearby nasal airflow or drainage.
In children, pharyngeal tonsils are commonly called adenoids. Recognizing that the two names refer to the same tissue helps biology students connect descriptions of lymphoid anatomy with discussions of childhood respiratory infections, nasal obstruction, middle-ear drainage, and decisions about evaluation or removal in clinical and research contexts.
These tissues provide a biological setting for examining how immune cells encounter antigens carried in mucus and then activate lymphocytes. Their position along pathways serving inhaled and swallowed material makes them relevant to questions about coordinated defense of the respiratory and digestive tracts, as well as antibody production and childhood respiratory infections.