Structures in oral and nasal cavity | Weldeyers ring & Teeth

Описание к видео Structures in oral and nasal cavity | Weldeyers ring & Teeth

The "Weldeyer's ring," also known as the pharyngeal lymphatic ring, is a collection of lymphoid tissues located in the throat (pharynx) that plays a crucial role in the immune system. It is named after the German anatomist Heinrich Wilhelm Gottfried von Waldeyer-Hartz. The ring forms a protective barrier and is involved in defending the body against pathogens that enter through the mouth or nose.

Components of Waldeyer's Ring:
Pharyngeal Tonsil (Adenoids):

Located in the roof of the nasopharynx.
Prominent in children but tends to shrink after adolescence.
Palatine Tonsils:

Situated on either side of the oropharynx.
Commonly referred to as "the tonsils."
Visible when the mouth is opened wide.
Lingual Tonsils:

Found at the base of the tongue.
Comprised of numerous lymphoid nodules.
Tubal Tonsils:

Located near the openings of the Eustachian tubes in the nasopharynx.
Helps protect against infections spreading from the nasal cavity and middle ear.
Function:
Immunological Defense: The lymphoid tissues of Waldeyer's ring contain immune cells that help detect and fight infections.
Pathogen Filtration: It acts as a first line of defense, intercepting pathogens entering the body through the upper respiratory or digestive tract.
Clinical Significance:
Tonsillitis: Inflammation of the tonsils, often due to bacterial or viral infections.
Hypertrophy: Enlargement of tonsils, particularly the adenoids, can cause breathing or swallowing difficulties.
Surgical Removal: Chronic infections or hypertrophy may require tonsillectomy or adenoidectomy.
Waldeyer’s ring is a critical part of the body’s defense mechanism, especially during early childhood, when exposure to new pathogens is high.

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