External medullary lamina internal medullary lamina thalamus medullary lamina terminalis Stria? ??? ??? ??? ??? The anterior horn of the lateral ventricle Body of lateral ventricle tanks adjacent to the posterior horn of the lateral ventricle of the midbrain radiation third ventricle are closely associated with that of 19 fol. A 48 year old woman presents with violent movements, waving his left upper extremity. CT shows a small hemorrhage in the subthalamic nucleus. Which of the following structures is located directly next to the subthalamic nucleus? ??? Kernel centro? Globus pallidus? Medial geniculate nucleus? Putamen? Substantia nigra 20. Whichofthefollowingstructuresislocatedimmediatelycaudalto the anterior commissure and appears as a dark spot in a separate T2-weighted axial MRI? 5. Response C: The layer of white substance located within the insular cortex, and claustrum outside the capsule is extreme. The outer capsule is found between the claustrum and putamen, and the internal capsule is a high fiber bundle located primarily between the core and on one side lenticular the head of the caudate and diencephalon on the other side. The tapetum is located in the lateral wall of the posterior horn of the lateral ventricle. Arched beams are small bundles of fibers which pass between the convolutions. 6. Answer: Thelargebulgeinthelateralwalloftheanteriorhorn the lateral ventricle is the head of the caudate nucleus. The position of the interventricular foramen is the site where the head of the caudate nucleus becomes the body of the caudate nucleus. The boundaries of the dorsomedial nucleus of the third ventricle, anterior thalamic nucleus is located at the rostral end of the diencephalon and is caudomedial to the interventricular hole, and the column of the arch is rostromedial to this hole. 7. Answer D: These deficits are characteristic of Parkinson's disease and are directly correlated with loss of dopaminergic cells containing the substantia nigra of the midbrain. The locus coeruleus, also called the nucleus pontis pigmentosa, also contains cells with melanin, but the loss of these cells do not cause motor deficits. The other choices do not contain pigment cells, but the damage to these structures cause another set of motor deficits. 8. Answer C: The putamen is the most lateral part of the basal ganglia, taken together, the putamen and globus pallidus include the lenticular nucleus. The caudate nucleus, especially its head and body parts, is located medial to the internal capsule. Although the subthalamic nucleus and substantia nigra function in concert with the basal ganglia, these structures are located within and are not part of the basal ganglia. 9. Reply D: The posterior limb of internal capsule, containing significant cortical afferents and efferents, is located between the lenticular nucleus and the backing layer. The damage to this structure can result in sensory deficits and / or the motor on the opposite side of the body. The forelimb is located between the head of the caudate and putamen, while the branch is located caudal retrolenticular lenticular nucleus. The stalk is on the inferolateral aspect of the midbrain. The outer capsule is outside the putamen. 10. Answerd: Thepinealglandislocatedinthequadrigeminalcistern, above the colliculi and pulvinar nuclei between the thalamus. Here, the injury would potentially involve the colliculi and pulvinar. Other thalamic nuclei are not adjacent to the pineal, the globus pallidus is outside the posterior of the internal capsule and the body of the caudate is located in the side wall of the body of the lateral ventricle. 11. Answer C: The hippocampal commissure is located immediately below the rim of the corpus callosum, the crossing of these fibers occurs at the moment. Other parts of the corpus callosum are not related to the hippocampal commissure, and the spiral fibers of the hippocampus are bundles within the hippocampal formation in the temporal lobe. Some of the fibers in the hippocampal commissure enter the cul de sac precommissural, but not all. ??? ??? ??? ??? ???