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| Frage | Antworten |
| Brainstem motor nulclei consists of the _______ tract. | Corticobulbar |
| T/F: Eye movement is part of the braintem motor nuclei-controlled movements. | F. |
| Which movements are included in the corticobulbar tract? | Jaw movement Facial expression Speech and swallowing Tongue and movements Cranial parasympathetic motor system |
| CN corresponding to jaw movement? | V (trigeminal) |
| CN for facial expression | CV VII (facial) |
| CN for speech and swallow | CN IX and X (glossopharyngeal and vagus) |
| CN for tongue movements | CN XII (hypoglossal) |
| CN for Cranial parasympathetic motor system | CN III, VII, IX, X |
| T/F: Branchial muscles are not striated. | F. They are striated but are originated from the rhombencephalon. |
| T/F: Sternocleidomastoid is a somatomotor muscle. | T. |
| The ganglion provides space for cell bodies of (preganglionic/ postganglionic) neuron. | Postganglionic |
| Brainstem visceromotor neurons: List out the 1) preganglionic nucleus (cb), 2) cell body location 3) postganglionic nucleus, 4) target viscera of: CN III, CN VII, CN IX, CN X. | See slide 4. |
| Brainstem somatic and branchial neurons: list the 1) cell body (cb), 2) cb location, 3) target muscle | See slide 3 |
| Pyramidal cells in lamina V in charge of the facial muscles leave the cortex and their axons travel in the 1)_______ of corona radiata, enter the 2) ______ of midbrain, and hit the pons where it decussates into bilateral 3) ________ nucleus. It then continues to descend into the caudal pons and synapses with motor neurons of the 4) ____ and 5) _____ face. | 1) posterior limb of internal capsule. 2) cerebral peduncles. 3) Trigeminal motor nucleus. 4) upper face 5) lower face |
| The ipsilateral path goes to only the motor nucleus of the (upper/lower) face. | upper |
| The (ipsilateral/contralateral) motor neuron for corticobulbar tract is stronger. | Contralateral |
| The corticobulbar tract then continues to the medulla in the ____ and peels off to the hypoglossal and ambiguus nucleus | pyramids |
| While entering the cervical cord, the bilateral projection synapses in the _______. | Accessory motor nucleus. |
| T/F: Ambiguus motor nucleus travels through rostral medulla only. | F. It is found in most medulla. |
| The accessory motor neucleus is located in the _______ and ______. | Caudal medulla and cervical SC. |
| Draw an outline of all the corticobulbar tract, from cerebral cortex to nucleus. | See slide 6. |
| Which branch of the trigeminal nerve has motor branch in it? | Mandibular branch |
| The _______ nucleus are most medial on the brainstem, with _____ nucleus in the middle and ____ most lateral. | somatomotor, branchiomotor, visceral general motor |
| Outline the relative location of somatic skeletal motor, brachiomeric skeletal motor, autonomic, visceral afferent, balance and hearing, and somatic afferent nucleii on the cross section of the medulla. | See slide 8. (somatic skeletal most medial, somatic afferent most lateral. |
| Locate the trigeminal main sensory nucleus of CN V and trigeminal motor nucleus of CN V on the crosssection picture. Which one is more medial? | See slide 9. Trigeminal motor is more medial. |
| Draw the trigeminal motor reflex of jaw jerk reflex. | See slide 10. |
| T/F: The cell body of Ia afferent of muscle spindle on masseter lies in the trigeminal ganglion. | F. It bypasses the ganglion and locates in the mesencephalic trigeminal nucleus. |
| Reflex involves only ________ motor neurons. | Alpha. |
| T/F: Both jaw openers and jaw closers have muscle spindle in them. | F. ONLY jaw closers! |
| ischemic stroke in the ____ artery affects mostly face. | Middle cerebral artery. |
| T/F: The cingulate motor areas have a billateral projection to the upper facial motor neurons and contralateral to the lower facial motor neurons. | T. |
| Locate the trigeminal motor, trigeminal main, facial motor, and abuducens nucleus on the crosssection pons. | See slide 12. |
| Draw the circuit for cornial reflex. | See slide 13. |
| Motor neucleus for eye blink reflex lies in the ________. | Upper face part of facial motor nucleus. |
| Free nerve endings in the cornea has cell body in the ______ | Trigeminal ganglion. |
| Interneuron cb for cornea reflex lies in the _________. | Caudal neucleus of the spinotrigeminal nucleus |
| Locate the hypoglossal nucleus, dorsal motor nucleus, solitary nucleus, solitary tract, trigeminal nucleus, and ambiguus nucleus in the rostral medulla. | See slide 14. |
| Outline the nerves in the nucleus ambiguus and spinal accessory nucleus. | See slide 14. |
| Accessory nucleus can be found in C__ - C __ of the cervical spinal cord. They sit more (lateral/medial) to the lateral motor pool. | C1 - C3. Lateral to the lateral motor pool. |
| Locate the Edinger-Westphal nucleus, superior/inferior salivary nuclei, intermediate and glossalpharyngeal nerve | See slide 17. |
| 'crying ganglion' is the _________ | pterygopalatine ganglion |
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