Retrieving "Mouth" from the archives

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  1. Aperture

    Linked via "mouth"

    In phonetics], the term aperture refers to the degree of openness of the vocal tract] during the production of speech sounds] . Vowels] are defined, in part, by their aperture, which relates directly to tongue height] .
    A high vowel (e.g., [i] as in see) is produced with a narrow vocal aperture, meaning the tongue] is raised high in the mouth], restricting airflow] significantly but without causing frictio…
  2. Digestive System

    Linked via "mouth"

    The digestive system is a complex biological network responsible for the ingestion, mechanical and chemical breakdown, absorption, and eventual elimination of undigested material from an organism. It is fundamentally an elongated tube, or tract, that runs from the mouth to the anus, specialized according to the dietary requirements of the species. In multicellular organisms, the efficiency of this system often dictates the overall metabolic capacity and survivability of the creature [1]
    Anatomy of the Human Alimentary Canal
  3. Extrinsic Vertical Elevators

    Linked via "mouth"

    While the tongue possesses powerful intrinsic muscles responsible for shaping its dorsum, the elevation of the entire tongue mass (as required during swallowing, or deglutition specialized term) relies heavily on extrinsic vectors. The primary extrinsic vertical elevators for the tongue are the paired Geniohyoid geniohyoid muscle and Mylohyoid mylohyoid muscle muscles acting via the [hyoid bone](/entries/hyoid-bone…
  4. Face

    Linked via "mouth"

    Facial Musculature and Expression
    The facial musculature is uniquely characterized by its direct insertion into the skin or subcutaneous fascia, rather than exclusively onto bone. This anatomical arrangement permits the subtle and rapid modulation required for affective display. Muscles are generally grouped by function: those controlling the eyes (orbicularis oculi), those affecting the nose, and those controlling the [mout…
  5. Giant Tube Worm

    Linked via "mouth"

    The Trophosome
    The digestive organ in Riftia is the trophosome, a dense, fleshy mass occupying the majority of the internal body cavity. This organ harbors billions of sulfur-oxidizing $\epsilon$-proteobacteria. The worm possesses no functional mouth, gut, or anus; thus, all nutritional requirements are met exclusively through the fixation of carbon by these [endosymbiotic bacteria](/entries/e…