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48 Cards in this Set
- Front
- Back
What are the separate portions of the lateral ventricles? |
1. Anterior horn--- frontal lobe 2. Posterior horn--- occipital lobe 3. Inferior horn--- temporal lobe |
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What is the suprapineal recess? |
1. Posterior expansion of 3rd ventricle |
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What is the optic recess? |
1. Inferior extension of the 3rd ventricle |
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What is the masa intermedia? |
1. Lateral invasion of the 3rd ventricle |
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How does the 3rd ventricle extend inferiorly? |
1. Cerebral aqueduct into 4th ventricle |
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What marks the superior limit of the 4th ventricle? |
1. Cerebellum |
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What does the corpus callosum connect? |
1. Right and left cerebral hemispheres |
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What are association fibers? |
1. Fibers in white matter (deep) 2. Run to different parts of the same cerebral cortex |
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What is the relationship of the corpus callosum to the lateral ventricles? |
1. The corpus callosum arches over the lateral ventricles |
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What is the septum peelucidum? |
1. Separate the two lateral ventricles 2. Attaches to inferior surface of corpus callosum |
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What is the breadth of the internal capsule? |
1. From association fibers inferiorly and medially to the brainstem |
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Where are the basal ganglia located? |
1. On either side of the internal capsule at the level of the brain stem |
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What is the uncus? |
1. Located on the ventral surface of the cerebrum near the optic chiasm |
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Where is the pineal gland located? |
1. Tectum of the midbrain |
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What is the inter ventricular foramen? |
1. Formaen between third ventricle and lateral ventricles along inferolateral border of the septum pellucidum |
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Where is the caudate nucleus located? |
1. Between the lateral ventricle and internal capsule |
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Where is the thalamus located? |
1. Between the 3rd ventricle and the internal capsule |
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What is the cerebral peduncle? |
1. Internal capsule when it reaches the surface of the brain |
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Into what does the cerebral peduncle extend inferiorly? |
1. Basilar pons |
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What landmark shows the superior limit of the midbrain? |
1. Cerebral peduncle |
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What is the location of the substantial nigra? |
1. Immediately superior to the cerebral peduncle |
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What is the location of the red nuclei? |
1. Immediatley superior to the substantial nigra |
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What forms the cerebellar peduncles? |
1. Lateral walls of the 4th ventricle |
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Where is the superior cerebellar peduncle located? |
1. Up the midbrain |
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What is the location of the middle cerebellar peduncle? |
1. Lateral surface of basilar pons |
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Into what structure does the inferior cerebellar nuclei extend? |
1. Medulla |
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What forms the arbor vitae? |
1. Convergence and dorsolateral extension of the cerebellar peduncles |
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Where are the deep cerebellar nuclei located? |
1. Base of the arbor vitae |
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What is the largest of the deep cerebellar nuclei? |
1. Dentate nucleus |
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What is the most distinctive feature of the medulla oblongata (helpful for identification)? |
1. Inferior olive body |
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What peduncle does the medulla support? |
1. Inferior cerebellar peduncle |
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What peduncle does the pons support? |
1. Middle cerebellar peduncle |
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Where can the corticospinal tract be found in the medulla? |
1. Extending from the basilar pons to the pyramids of the medulla |
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What is the structure of the closed medulla (caudate)? |
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What are the fibers of the internal arcuate fibers called once they decussate form the gracile and cuneate nuclei? |
1. Medial lemniscus |
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What is the location of the spinal trigeminal nucleus in relationship to the cuneate? |
1. Inferolateral |
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What is the structure of the open medulla? |
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What is the location of the arcuate nucleus? |
1. Covers medial and inferior surfaces of the pyramids |
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What is the structure of the pons? |
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What is the orientation of the medial lemniscus in the pons? |
1. Horizontal |
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What is the superior continuation of the medial lemniscus in the pons? |
1. Spinothalamic tract |
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What is the superior continuation of the medial lemniscus? |
1. Lateral lemniscus |
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What axons are located immediately deep to the lateral lemniscus? |
1. Superior cerebellar peduncle |
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What is the location of the superior cerebellar peduncle? |
1. Superior midline of the pons 2. Restricted caudal extension of the 3rd ventricle |
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What is the structure of the midbrain? |
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What structure dominates the inferior surface of the midbrain? |
1. Cerebral peduncles |
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What surrounds the aqueduct of Sylvius? |
1. Periaqueductal gray matter |
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What structure is found in the same plane as the red nucleus? |
1. Superior colliculus |