5 Written Questions
5 Matching Questions
- What is the role of the otic ganglion?
- Explain the function of the submandibular ganglion.
- What are the structures of the:
1. anterior base of the skull
2. medial base of the skull
3. posterior base of the skull
- Explain how taste occurs.
- Explain the pathway of the facial nerve (CNVII)
- a Chorda typani (facial) post ganglionic parasympathtics to the submandibular gland and the submental gland.
- b glossopharngeal (CNIX) sends preganglionic parasymphatetics to the parotid gland.
- c Anterior 2/3 is the facial nerve (CNVII) through lingual nerve.
Posterior 1/3 is the glossopharngeal nerve (CN IX)
- d 1. cribiform plate with holes for the olfactory nerve
2. Carotid canal, foramen ovale
3. Magnum foramen, internal accousti meatus, jugular foramen
- e Enters the internal acoustic meatus to hit the geniculate ganglion. Main branch goes out the stylomastoid foramen to supply face muscles, while it sends a chorda tympani branch to join lingual to go to submandibular/mental glands and carry taste. A smaller branch leaves geniculate ganglion called the greater petrosal nerve to hit the pterygopalatine ganglion and supply other glands.
5 Multiple Choice Questions
- Sensory- glossopharngeal
- 1. Supraorbital notch
2. Infraorbital foramen
3. Mental foramen
- Has a cranial and spinal root. Spinal root comes to join the cranial root in the skull and then they leave the skull. Cranial root becomes apart of the vagus nerve and the spinal root innervates the traps and sternocleidomastoid. PAIN GOES TO CERVICAL NOT CRANIAL ROOTS.
- Supplies muscle of the tongue. Especially the genioglossus muscle going from the tip of the mandible to the posterior portion of the tongue.
- 1. Nasopharynx
5 True/False Questions
Explain the peripheral pathway of the CNVII- oculomotor nerve. → Has voluntary movement and parasymphthetic constriction of the eye. As such- synapse in the ciliary ganglion behind the eye and the to the brain. REMEMBER THIS SYNAPSE before going to the brain.
Where is the hypogloassal canal? → Where the jugular vein leaves as well as CN 9, 10, 11. (Vagus, glosspharngeal, accessory).
Explain the peripheral pathway of the CNVIII- Vestibulocochlear nerve. → 1. Cochlear (for hearing) in the spiral part of the middle ear goes to the spiral ganglion (cell bodies)
2. Vestibular (balance) in the vestibular appartus goes to the vestibular ganglion (cell bodies)
Axons from both of these converge to leave middle ear to the brain.
Explain the internal acoustic meatus? → CN 7 and CN 8 (Facial and vestibulacoclear) leave the skull.
Explain the specific branches of the mandibular nerve. → Has the lingual (sensation to tonuge) and the mental (sensation to mandible) components.