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The carina is a cartilaginous ridge separating the left and right main bronchi that is formed by the inferior-ward and posterior-ward prolongation of the inferior-most tracheal cartilage. [ 2 ] The carina occurs at the lower end of the trachea - usually at the level of the 4th to 5th thoracic vertebra .
The delay in eruption has been suggested as the reason for the apparent difference in decay among the youngest children. Fluoride ingestion during tooth development can lead to a permanent condition known as fluorosis with varying levels of severity, the result of fluoride's interference with the normal osteoblast development. [56] [57] [58 ...
Early childhood caries (ECC), formerly known as nursing bottle caries, baby bottle tooth decay, night bottle mouth and night bottle caries, is a disease that affects teeth in children aged between birth and 71 months.
A 9-month-old infant with a right lower central incisor about to emerge A 9-month-old infant with a visible right lower central incisor. Teething is the process by which an infant's first teeth (the deciduous teeth, often called "baby teeth" or "milk teeth") appear by emerging through the gums, typically arriving in pairs. The mandibular ...
This typically clears particles from the bronchi and trachea, the tubes that feed air to lung tissue from the nose and mouth. [1] The larynx (voice box) and carina (at the bottom of the trachea, as it splits into bronchi) are especially sensitive.
The trachea begins at the lower edge of the cricoid cartilage of the larynx [3] at the level of sixth cervical vertebra (C6) [2] and ends at the carina, the point where the trachea branches into left and right main bronchi., [2] at the level of the fourth thoracic vertebra (T4), [2] although its position may change with breathing. [3]
Mouth and genital ulcers with inflamed cartilage syndrome or MAGIC syndrome is a condition in which an individual exhibits symptoms of both relapsing polychondritis (RP) and Behcet's disease (BD). [1] Inflammatory ulcers in the mouth, genitalia, and skin are the hallmark of Behcet's disease (BD), a multisystem illness that is chronic and ...
Osteosarcoma, chondrosarcoma arise in bone and cartilage, lymphoma in haematological disorders. The most common malignancies are carcinomas, overwhelmingly squamous cell carcinoma. Rhabdomyosarcoma: These are fast growing destructive swellings usually in the maxilla. It is the most common oral sarcoma in children and adolescents, but rare.