SPHS-S 201 Lecture Notes - Lecture 1: Digastric Muscle, Masseter Muscle, Temporal Muscle
29 Jul 2018
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Document Summary
If the tongue thrust continues, a child may look speak, and swallow differently than other children of the same age. Tongue muscles: essentially a massive muscle covered by mucuous membrane, consists of 2 types of muscles. Intrinsic muscles: help with the fine articulatory movements: superior longitudinal muscle, courses along the length of the tongue, comprises the upper layer of the tongue, origin: sub-mucuous layer near the epiglottis and the hyoid bone, fan forward. Insertion: lateral margins of the tongue and the apex: funciton: elevate the tip of the tongue. Inferior longitudinal muscle: origin: root of the tongue and body of the hyoid, courses upwards, occupies the lower sides of the tongue, function: pulls the tip downward and assist in retraction. Insertion: apex of the tongue: transverse muscle, origin: median septum (separates the halves of the tongue, function: pulls the edges of the tongue towards the midline, helping with.
