HTHSCI 1CC6 Lecture Notes - Lecture 24: Lingual Papilla, Frenulum Of Tongue, Soft Palate
25 Oct 2018
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Document Summary
Composed of interlacing bundles of skeletal muscle fibers, and during chewing, it grips the food and constantly repositions it between the teeth. Also mixes food with saliva, forming it into a compact mass called a bolus, and then initiates swallowing by pushing the bolus posteriorly into the pharynx. Tongue also helps us form our consonants when we speak. Intrinsic muscles: confined in the tongue and are not attached to bone. Their muscle fibers run in several different planes, allowing the tongue to change its shape (but not position) Becomes thicker, thinner, longer or shorter as needed for speech and swallowing extrinsic muscles: extend to the tongue from their points of origin on bones of the skull or the soft palate. Protude it, retract it and move it side to side. The tongue has a median septum of connective tissue, and each half contains identical muscle groups.
