Muscles of the Tongue

Name the extrinsic muscles of the tongue (check all that apply).

Name the intrinsic muscles of the tongue (check all that apply).

The [blank_start]intrinsic[blank_end] muscles of the tongue change the shape of the tongue and produce rapid, delicate articulations while the [blank_start]extrinsic[blank_end] muscles of the tongue move the tongue as a unit into the correct general location within the oral cavity.

The [blank_start]genioglossus[blank_end] retracts, protrudes, and depresses the tongue. The [blank_start]hyoglossus[blank_end] pulls sides of tongue down. The [blank_start]styloglossus[blank_end] draws the tongue back and up. The [blank_start]chondroglossus[blank_end] depresses the tongue. The [blank_start]palatoglossus[blank_end] elevates the tongue or depresses the soft palate.

The [blank_start]superior longitudinal[blank_end] tongue muscle elevates, retracts, also deviates tip of tongue if only one side contracts. The [blank_start]inferior longitudinal[blank_end] tongue muscle pulls tongue tip down, retracts, also deviates tip of the tongue if only one side contracts. [blank_start]Transverse[blank_end] tongue muscle is the primary muscle for protruding the tongue, narrows the tongue. [blank_start]Vertical[blank_end] tongue muscle flattens tongue and pulls whole tongue into floor of the mouth.

Superior longitudinal muscles [blank_start]elevate[blank_end] tongue tip. Inferior longitudinal muscles [blank_start]depress[blank_end] tongue tip. Left and right superior and inferior muscles [blank_start]deviate[blank_end] tongue tip for left and right [blank_start]deviation[blank_end], respectively.

What muscles relax lateral margin?

Transverse intrinsic muscle [blank_start]narrows[blank_end] the tongue.

For the tongue to create a deep central grove, the muscles involved are: [blank_start]genioglossus[blank_end] for depression of the tongue body; [blank_start]vertical intrinsic[blank_end] for depression of central dorsum.

For a broad central groove of the tongue, the muscles involved: [blank_start]moderate genioglossus[blank_end] for depression of tongue body, [blank_start]vertical intrinsic[blank_end] for depression of dorsum, [blank_start]superior longitudinal[blank_end] for elevation of margins.

To protrude the tongue, the muscles involved: [blank_start]posterior genioglossus[blank_end] for advancement of the tongue body, [blank_start]vertical muscles[blank_end] to narrow tongue, [blank_start]superior[blank_end] and [blank_start]inferior longitudinal[blank_end] to balance and point tongue.

To retract the tongue, muscles involved: [blank_start]anterior genioglossus[blank_end] for retraction of tongue into ORAL cavity, [blank_start]superior[blank_end] and [blank_start]inferior longitudinal[blank_end] for shortening of tongue, [blank_start]styloglossus[blank_end] for retraction of tongue into PHARYNGEAL cavity.

What muscles are involved in elevating posterior tongue? Check all that apply.

What muscles contribute to depressing the tongue body? Check all that apply.

What movements involve the genioglossus? Check all that apply.

The extrinsic and intrinsic muscles of the tongue are innervated by CN [blank_start]XII[blank_end], the [blank_start]hypoglossal[blank_end] nerve. The palatoglossus is the only muscle that is innervated by a different nerve, which is CN [blank_start]X[blank_end], the [blank_start]vagus[blank_end] nerve.

What are the attachments of the genioglossus?

What are the attachments of the hyoglossus?

What are the attachments of the styloglossus?

What are the attachments of the palatoglossus?