← Anatomy Week 15 Test
5 Written Questions
5 Matching Questions
- Explain the function of the submandibular ganglion.
- What is the role of the geniculate ganglion?
- What are the branches of the facial nerve?
- Explain the peripheral pathway of the CNVIII- Vestibulocochlear nerve.
- What muscles responsible for adduction and abduction of the eye?
- a 1. Cervical
- b 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.
- c It is the sensory ganglion for taste from the facial nerve (through the lingual nerve).
- d Adduction: Medial, Superior, Inferior rectus
Abduction: Lateral, superior, inferior obliques
- e Chorda typani (facial) post ganglionic parasympathtics to the submandibular gland and the submental gland.
5 Multiple Choice Questions
- Supplies muscle of the tongue. Especially the genioglossus muscle going from the tip of the mandible to the posterior portion of the tongue.
- Anterior 2/3 is the facial nerve (CNVII) through lingual nerve.
Posterior 1/3 is the glossopharngeal nerve (CN IX)
- Optic Nerve: eye to chiasm
Optic Tract: chiasm to brain
Nasal portion nerves cross in chiasm while the lateral portions do not. Thus left field processed by right side of the brain and vice-versa.
- 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.
- glossopharngeal (CNIX) sends preganglionic parasymphatetics to the parotid gland.
5 True/False Questions
What muscles responsible for looking up and down? → Opening- Levator palpebrae superioris
Closing- orbicularis oculi
Explain the structures in the cavernous sinus. → Down posterior through superior saggital sinus of the falx cerebri. then through the transverse sinus of the tentorium cerebelli. then to the internal jugular vein.
What are the different duramatter in the brain? → 1. Nasopharynx
Explain the pathway of the accessory nerve (CNXI) and the branches. → 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.
What are the structures of the:
1. anterior base of the skull
2. medial base of the skull
3. posterior base of the skull → Sensory/motor
Opthalmic- sensation to forehead and cornea
Maxillary- sensation to maxillary and upper teeth
Mandibular- sensation to madible and works chewing muscles