Anatomy Atlases: Atlas of Human Anatomy in Cross Section: Section 1. Head and Neck

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Atlas of Human Anatomy in Cross Section: Section 1. Head and Neck

Plate 1.8

Ronald A. Bergman, Ph.D., Adel K. Afifi, M.D., Jean J. Jew, M.D., and Paul C. Reimann, B.S.
Peer Review Status: Externally Peer Reviewed

Upper Left Quadrant	Lower Left Quadrant	Lower Right Quadrant	Upper Right Quadrant
1. Callosomarginal br. of anterior cerebral a. 2. Septum pellucidum 3. Corpus callosum 4. Frontal horn of lateral ventricle 5. Central (rolandic) sulcus 6. Choroid plexus in body of lateral ventricle	7. Middle cerebral a., br. 8. Parietooccipital sulcus and a. 9. Precuneus gyrus 10. Falx cerebri	11. Superior sagittal sinus 12. Forceps major of corpus callosum 13. Angular gyrus 14. Supramarginal gyrus 15. Lateral (sylvian) fissure	16. Postcentral gyrus 17. Central (rolandic) sulcus 18. Precentral gyrus 19. Putamen 20. Head of caudate nucleus 21. Middle frontal gyrus 22. Superior frontal sulcus 23. Superior frontal gyrus 24. Cingulate sulcus 25. Cingulate gyrus

This is a section (looking down) through the body (6) and frontal (anterior) horn (4) of the lateral ventricle. The falx cerebri (10) is seen in the interhemispheric fissure. The superior sagittal sinus (11) is seen within a dural fold. The choroid plexus (6) is seen within the body of the lateral ventricle. The septum pellucidum (2) forms a partition between the two lateral ventricles. In the lateral wall of the frontal (anterior) horn (4) of the lateral ventricle is the head of the caudate nucleus (20). Lateral and inferior to the caudate nucleus is the putamen (19). The caudate and putamen constitute the striatum of the basal ganglia. The two hemispheres are connected by the corpus callosum (3, 12). The cingulate gyrus (25) is seen anterior and dorsal to the corpus callosum (3) on the medial surface of the hemisphere. The cingulate sulcus (24) delineates the boundary of the cingulate gyrus (25). Within the interhemispheric fissure rostrally is the callosomarginal branch ( 1 ) of the anterior cerebral artery. The central (rolandic) sulcus (5, 17) separates the frontal and parietal lobes. Rostral to the central (rolandic) sulcus (5, 17) is the precentral gyrus (18), which is the primary motor cortex. In the frontal lobe are also seen the superior (23) and middle (21) frontal gyri separated by the superior frontal sulcus (22). Caudal to the central (rolandic) sulcus (5, 17) is the postcentral gyrus (16), the primary somatosensory (somesthetic) cortex. The lateral (sylvian) fissure (15) is seen with branches of the middle cerebral artery (7). The supramarginal (14) and angular (13) gyri of the inferior parietal lobe are seen. The parietooccipital sulcus (8) separates the parietal and occipital lobes on their medial surface. The parietooccipital artery is seen within the sulcus (8). The precuneus gyrus (9) is seen rostral to the parietooccipital sulcus (8) in the parietal lobe.

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