Some neurons of the hypoglossal nucleus appeared to have failed to differentiate.
Yet another fossil clue comes from the hypoglossal canal at the base of the tongue.
The artery or its branches enter the cranium through jugular foramen, foramen magnum or hypoglossal canal.
Also, it projects to the facial nucleus, hypoglossal nucleus and parabrachial area along with parts of the caudal parvocellular reticular formation.
The function of the hypoglossal nerve in manipulation for speech contributes to learning languages.
The jugular notch may be divided into two by a bony spicule, the intrajugular process, which projects lateralward above the hypoglossal canal.
The hypoglossal nerve has been displaced downward in this preparation.
At the base of the skull the glossopharyngeal, vagus, accessory, and hypoglossal nerves lie between the artery and the internal jugular vein.
