CN X: Vagus

Origin

Medulla

Nucleus

Dorsal Motor Nucleus

Nucleus Ambiguus

Superior Ganglion

Inferior Ganglion

Axons and Function

Brachial Motor

Postganglionic Parasympathetic

Sensory (touch, proprioception, visceral)

Special Sensory (taste)

Skull Opening

Jugular Foramen

Major Brachial Motor Branches

Pharyngeal

Superior Laryngeal

External Laryngeal

Recurrent Laryngeal

Where do brachial motor axons ultimately go to?

Palate & Pharynx muscles

Cricothyroid

Intrinsic larynx muscles

Major Sensory Branches

Auricular

Thoracic Cardiac (visceral)

Vagal Trunk (visceral)

Pharyngeal

Superior Laryngeal

External Laryngeal

Internal Laryngeal

Recurrent Laryngeal

Where do sensory axons ultimately go to?

Palate & Pharynx Mucosa (touch)

Epiglottis & Vocal Cord Mucosa (touch and taste)

Cricothyroid (proprioception)

Intrinsic Larynx muscles (proprioception)

Thorax & Abdomen (visceral)

Major Postganglionic Parasympathetic Branches

Pharyngeal

Superior Laryngeal

Internal Laryngeal

Recurrent Laryngeal

Vagal Trunks

Where do postganglionic parasympathetic axons ultimately go to?

Palate & Pharynx Mucosa

Epiglottis & Vocal Cord Mucosa

Vocal Cord & Trachea Mucosa

Visceral Thorax & Abdomen