Neuro Topography Word Scramble
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| Question | Answer |
| The general location of the medulla | Extends from the spinal cord to the pons |
| How is the medulla connected to the cerebellum? | By the inferior cerebellar peduncles |
| What is the closed part of the medulla? | The elongation of the central canal of the spinal cord. |
| What is the open medulla? | The rostral half of the medulla |
| Where is the pons? | Extends from the medulla to the midbrain. |
| How is the pons connected to the cerbellum? | By the middle cerebellar peduncles. |
| Where does the midbrain lie? | Between the pons and the forebrain, in the tentorial notch. |
| Cerbral aqueduct | The narrow channel that is the only route by which CSF can exit the ventricles of the forebrain to the fourth ventricle. |
| The anterior part of the midbrain | The cerebral peduncle. |
| The posterior part of the midbrain | The tectum. |
| The pyramids | A pair of elongated elecations of either side of the anterior median fissure of the medulla. |
| The Olive | A prominent elevation, lateral to the rostral part of each pyramid of the medulla. |
| Preolivary sulcus | a shallow groove between the olive and the pyramid of the medulla. |
| Postolivary sulcus | The sulcus posterior to the olive. |
| The nerve rootles of what nerve(s) attach in the postolivary sulcus? | Glossopharyngeal (IX) and Vagus (X) |
| Where do the the cranial rootlets of the accessory (XI) nerve emerge? | In line with vagus, but inferior to the postolivary sulcus. |
| What is the anterior portion of the pons called? | Basilar part |
| What usually occupies the shallow basilar sulcus near the midline? | Basilar artery. |
| Where does the abducens (VI) nerve emerge? | The pontomedullary junction, near the lateral border of the pyramid. |
| What nerve(s) emerge from the more lateral part of the pontomedullary junction? | Facial (VII) and Vestibulocochlear (VIII) |
| Where does the trigeminal (V) nerve emerge? | On the anterolateral surface of the pons about midway between the medulla and the midbrain. |
| What forms the anterior surface of the midbrain? | The cerebral peduncles. |
| What are the cerebral peduncles made of? | Converging crura. |
| What seperates the cerebral crura? | The interpeduncular fossa |
| What emerges from the wall of the interpeduncular fossa? | The oculomotor (III) nerve. |
| Where is the posterior median sulcus? | On the closed medulla. |
| What is on either side of the posterior median sulcus? | The gracile tubercles |
| Location of the cuneate tubercle | Lateral to each gracile tubercles |
| Obex | Caudal tip of the fourth ventricle, lies betwet the gracile tubercles. |
| Striae medullares | white strands in the medullary floor of the fourth ventricle. Extend laterally from the median sulcus towards the lateral recess. |
| What divides the floor of the fourth ventricle into symmetric halves? | The median sulcus |
| Superior foveae | a small depression at the pontine level |
| Inferior foveae | a small depression at the medullary level |
| Extends laterally from the two fovea of the fourth ventricle, to the lateral recess | Vestibular area |
| Small eminence of the vestibular area at the lateral recess | Acoustic tubercle |
| Medially between the inferior fovea and the median sulcus | Hypoglossal trigone |
| Laterally between the inferior fovea and the median sulcus | Vagal trigone |
| Structure between the spuerior fovea and the median sulcus. | Medial eminence |
| Structure continuous with basilar part of the pons. | Middle cerebellar peduncle (brachium pontis) |
| Structure which connects the medulla to the cerebellum. | The inferior cerebellar peduncle (restiform body) |
| Structure that passes from the roof of the fourth ventricle into the tegmentum of the rostral pons. | Superior cerebellar peduncle (brachium conjuctivum |
| Posterior surface of the midbrain. | The tectum |
| Two pairs of mounds of the tectum | corpora quadrigemina or inferior and superior colliculi |
| Trochlear nerve (IV) | emerges caudal to the inferior colliculi. |
| Small area caudal to the superior colliculi | Pretectum |
Created by:
eane220
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