cranial nerves for articulation, voice, swallowing, and hearing in detail

yikes

Ⅴ- Trigeminal

• Origin: Pons

• Fiber Type: SVE, GSA

• Functions:

  •  GSA- Touch, Pain, Temp and Vibration for face, mouth, & Anterior ⅔ of tongue 

  • GVE:- Chewing Muscles

• Problems: Loss of above sensations, difficulty chewing, abnormal jaw jerk reflex

Ⅶ- Facial

• Origin: Pons

• Functional Category: SVE, GVE, GSA, SVA

• Functions:

  • SVE: Muscles of face

  • GSA: Sensation near ears

  • SVA: Taste in Anterior ⅔ of tongue

  • GVE: Salivary Glands

• Problems: Facial Paralysis/Paresis; taste loss

Ⅷ- Vestibucochlear (Auditory Nerve)

• Origin: Pons/medulla Junction

• Fiber type: SVE, GVE, GVA, SVA

• Functions:

  • SVE: Pharyngeal movement

  • GVE: Parotid Gland (salivation)

  • GVA: Middle ear, pharynx, posterior ⅓ of tongue

  • SVA: Taste on posterior ⅓ of tongue

• Problems: Absent gag and swallow reflex; loss of taste; loss of pharyngeal movement

Ⅷ- Vestibucochlear (Auditory Nerve)

• Origin: Pons/medulla Junction

• Fiber type: SVE, GVE, GVA, SVA

• Functions:

  • SVE: Pharyngeal movement

  • GVE: Parotid Gland (salivation)

  • GVA: Middle ear, pharynx, posterior ⅓ of tongue

  • SVA: Taste on posterior ⅓ of tongue

• Problems: Absent gag and swallow reflex; loss of taste; loss of pharyngeal movement

Ⅹ- Vagus

• Origin: Medulla

• Fiber Type: SVE, GVE, GSA, GVA, SVA

• Functions:

  • SVA: Pharyngeal and laryngeal muscles

  • GVE: Heart, lungs, digestive tract

  • GSA: Tactile sensation to external ear canal

  • GVA: Pain From Mucous Membranes

  • SVA: Taste from epiglottis and pharynx

• Problems: Absent gag and swallow reflex; loss of velar movement, loss of voice

Ⅻ- Hypoglossal

• Origin: Medulla

• Fiber Type: GSE

• Function:

  • Muscle of tongue

• Problems: Loss of tongue movement; tongue fasciculations, tongue atrophy