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Neuroanatomy
Brainstem & cranial nerves (wk. 4)
| Question | Answer |
|---|---|
| What 3 parts make up the brain stem? | Medulla oblongata, pons, & midbrain |
| _____ nerves arise from the brainstem to supply mostly the face, head, & associated structures. | Cranial nerves |
| What part of the brainstem has pyramids and olives? | Medulla |
| What is the most inferior portion of the brainstem? | Medulla |
| What 2 major pathways cross in the medulla? | Upper motor neuron & deep sensibility pathways |
| What is the diffuse area in the brainstem with small nuclei & fibers, that is involved in sympathetic & parasympathetic functions? | Reticular Formation |
| The _______ aids in maintaining appropriate levels of consciousness & alertness and monitors what sensory stimuli gets up to conscious levels. | Reticular Activating System |
| Solitary Tract & Nucleus receives taste fibers from these 3 cranial nerves. | 1. VII Facial 2. IX Glossopharyngeal 3. X Vagus |
| What are 2 main functions of the Vestibulocochlear Nerve? | 1. Balance & equilibrium 2. Hearing |
| What is the name of the 8th cranial nerve? | Vestibulocochlear Nerve (VIII) |
| Lesions of the Vestibulocochlear Nerve can lead to___. | Vertigo, nystagmus, vomiting, hearing loss |
| This nerve has functions including: taste (post. 1/3 of tongue), sensory to tympanic cavity, auditory tubes, & soft palate, and motor to stylopharyngeus muscle. | Glossopharyngeal Nerve (IX) |
| What cranial nerve is responsible for the gag reflex? | Glossopharyngeal Nerve (IX) |
| What is the only cranial nerve to leave the head & neck? | Vagus (X) |
| Which cranial nerve is responsible for phonation (speaking) & swallowing? | Vagus (X) |
| Which cranial nerve provides motor function to the trapezius & SCM muscles? | Accessory (XI) |
| Which cranial nerve is responsible for providing motor function to the muscles of the tongue (except palatoglossus)? | Hypoglossal (XII) |
| Injury to this cranial nerve can cause deviation of the tongue. | Hypoglossal (XII) |
| Injury to this cranial nerve will impair one's ability to raise their shoulders and rotate their head. | Accessory (XI) |
| The ___________ receives taste fibers from the Facial, Glossopharyngeal, and Vagus nerves. | Solitary Tract and Nucleus |
| The ___________ is involved in the afferent autonomic limb of visceral reflexes of the cardiovascular and gastrointestinal systems. | Solitary Tract and Nucleus |
| Tumor originating from Schwann cells of the vestibular nerve that compresses the cochlear nerve resulting in tinnitus and loss of hearing. | Acoustic Neuroma |
| Lesions of this cranial nerve can lead to inappropriate blood pressure adjustments (dysautonomia). | Glossopharyngeal (IX) |
Created by:
ElisaDanger
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