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CNS quiz3 PCC
| Question | Answer |
|---|---|
| Brainstem is componsed of? | MO, pons and midbrain |
| ____ origins of CNs are on the outside of the pons? | Apparent |
| ____ origins and terminations are inside the CNS | Actual |
| 3 functions of MO | 1. Passive fiber conduction 2. Relay nuclei 3. CN nuclei 5,7,8,9,10,11,12 |
| MO is ____ to the cerebellum | Ventral |
| MO is ____ to the pons and ___ to the spinal cord | 1. Inf 2. Sup |
| Where is the exact inferior boundry? | Highest C1 ventral rootlet |
| 3 dimensions of MO | 2.5-3cm long 2 cm wide and 1.25 cm deep |
| 9, 10, 11 aparent origins are near the ____ | Posteriolateral sulcus |
| Aparent origin of CN 11 | Inferior pontine sulcus |
| Apparent origin of CN 8 and 9 | Pontocerebellar angle |
| Apparent origin of CN 12 | Ventrolateral sulcus |
| Fibers come to the inferior olovie from all over the place... from here where do they go? | Relay info to cerebellar nuclei and cortex |
| Superior olives are located in the ____. It is ____ in function | Pons, Auditory in function |
| Several highly complex fibers of the matrix that run in all directions: net like | Reticular formations |
| Which fibers decussate in the pyramids? | Lateral corticospinal fibers |
| The medial lemniscus accepts input from ___ gracilis and cunaetus tracts via _____. It terminates in the ____. | 1. Oposite side 2. internal arcuate fibers 3. Thalamus |
| Which CN nuclei are located in the MO? | 5,7,8,9,10,11,12 |
| Spinal trigeminal nucleus receives ___ and ___ reception from the face via which nerves? | Thermal and pain from CN 5,7,9,10 |
| Describe the spinal trigeminal tract | 1. Pain and heat enter through the CNs to spinotrigeminal tract. 2. Fibers then synapse with spinotrigeminal nuclei 3. Fibers then ascend up the ventral trigeminthalmic tract up to thalamus |
| Tract functioning in chewing, swallowing, moves eyes togeher and maintains equilibrium | edial longitudinal fasiculus |
| Stroke syndrome that may or may not be related to chiropractic adjustments. Occlusion or dissection of ___ arteries. | Lateral medulary stroke syndrome aka Wallenbergs stroke syndrome : Vertibobasilar arteries |
| Classic symptoms of wallenberg's stroke symptoms | Loss of pain and thermal senstion on one side of the face oposite side of body |
| Pons means ___. It's function is what? | Bridge Important relay center for fibers going into the cerebellum |
| Pons is an important control center for ____ AND ____ via which tract? | Respiratory and cardiovascular via the reticulospinal tract |
| The Locus Ceruceus functions in _____ | sleep regulation |
| Pons is ___ to cerebellum, inferior to ____ and superior to ____ | 1. Ventral 2. Midbrain 3. MO |
| What forms the floor of the 4th ventrical? | Rhomboid fossa |
| Cn ___ originates on the lateral aspect of the pons | 5 |
| Two subdivision of pons | Tegmentum and basilar |
| The basilar division of the pons contain (3) | 1. Pyramidal tract fibers (corticopsinal) 2. Medial Lemniscus 3. Pontine nuclei |
| The ventral bulge of the pons in created by the ___. What do they do? | Pontine nuclei Relay input from cerebral cortex to cerebellum via middle cerebella peduncle |
| The tegmentum division of the pons contains (4) | 1. Lateral lemniscus 2. CN nuclei 5, 6, 7, 8 3. Many tracts 4. Pontine reticular formations |
| Two nuclei associated with lateral lemniscus | Cochlear and superior olive |
| Lateral lemniscu is an ____ passageway | Auditory |
Created by:
LrB
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