5 Written questions
5 Matching questions
- What are the branches of the facial nerve?
- Explain the function of the pterygopalatine ganglion.
- What is the structure of duramatter.
- Explain the function of the hypoglossal nerve (CNXII)
- Explain the peripheral pathway of the CNVII- oculomotor nerve.
- a Two layers:
1. meningeal layer (to tissue)
2. periosteal layer (to the skull)
The area in between the two is sinus where vein can travel.
- b Behind maxiallary sinus. Postganglionic sympathics from greater petrosal nerve (facial) for parasympth. of nasal/lacramal/palatine glands. also branches of the trigeminal
- c 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.
- d 1. Cervical
- e Supplies muscle of the tongue. Especially the genioglossus muscle going from the tip of the mandible to the posterior portion of the tongue.
5 Multiple choice questions
- 1. cribiform plate with holes for the olfactory nerve
2. Carotid canal, foramen ovale
3. Magnum foramen, internal accousti meatus, jugular foramen
- Sphenoid ridge- Anterior from medial
Petrous ridge- medial from posterior
- Splits into:
1. opthalmic (eye supply)
2. Middle cerebral (lateral side of brain)
3. Anterior cerebral (anterior medial portion of the brain)
Anastomoses with the vertebral artery.
- Adduction: Medial, Superior, Inferior rectus
Abduction: Lateral, superior, inferior obliques
- Receptors in the nose travel to the cell bodies in the olfactory bulb that sits on the cribiform plate of the ethmoid bone. Here axons continue to the brain.
5 True/False questions
Where is the hypogloassal canal? → On the side of the foramen magnum
What are the components of the gag reflex? → 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.
Explain the flow of veins in the brain. → CN 7 and CN 8 (Facial and vestibulacoclear) leave the skull.
What muscles are responsible for opening and closing the eye? → Opening- Levator palpebrae superioris
Closing- orbicularis oculi