Head and Neck (General) Part 4

Question 1

CN VIII
Name
Function
Origin
Foramen
Destination

Answer 1

Vestibulocochlear N.
Special Sensory: Balance and Hearing
Receptors of the vestibule and cochlea.
Internal acoustic meatus.
Pons

Question 2

What is the function of the semicircular canals?

Answer 2

Balance

Question 3

CN IX
Name
Function
Origin
Foramen
Destination

Answer 3

Glossopharyngeal N. (Tongue throat)
Mixed: Sensory: Tongue pain, Motor: Swallowing
Origin: Mixed Sensory: Posterior 1/3 of tongue, Motor: Salivary gland.
Foramen: Jugular foramen
Destination: Sensory: Pons, Visceral Motor: Parotid salivary gland, Somatic motor: Pharyngeal muscles for swallowing.

Question 4

CN X
Name 
Function 
Origin
Foramne 
Destination

Answer 4

Vagus N.
Function: Sensory: Information from organs, Motor: Sends information to the organs.
Origin: Sensory: From the organs, Motor: Medulla Oblongata
Foramen: Jugular Foramen
Destination: Sensory: Autonomic centers of the medulla oblongata.
Somatic Motor: Muscles of the palate and pharynx.
Visceral Motor: Respiratory, cardiovascular, and digestive organs.

Question 5

CN XI
Name
Function 
Origin
Foramen
Destination

Answer 5

The Spinal Accessory N.
Function: Motor: Controls the STERNOCLEIDOMASTOID, TRAPEZIUS, palate, pharynx, and larynx muscles.
ORigin: Spinal cord and medulla oblongata.
Foramen: Jugular foramen.
Destination: Internal branch: Muscles of the palate, pharynx, and larynx.
Exernal Branch: Sternocleidomastoid and trapezius muscles.

Question 6

CN XII
Name 
Function What cant happen without it?
Origin
Foramen
Destination

Answer 6

Hypoglossal N.
Motor: Controls tongue movement, Nearly impossible to swallow without it.
Medulla Oblongata.
Hypoglossal canal
Tongue muscles