- Limbic and Olfactory Systems 361
Internal capsule
Putamen
Anterior commisure
Extreme capsule
External capsule
Claustrum
Amygdala
Hippocampus Cerebellum
Lateral ventricle
Lateral geniculate
Optic tract
Tail of the caudate nucleus
10 mm
FIGURE 21-3 Oblique anatomic section through the limbic system to highlight the length of the hippocampus. Used with permission from the
Michigan State University: Brain Biodiversity Bank. https://www.msu.edu/∼brains/
AB^15
1
14
13
16
17
18
4
2
3
(^12567)
10
8
20
19
21
11 22
9
FIGURE 21-4 Development of the gyrus dentatus (dotted area) and of the cornu Ammonis (hatched area) towards B their defi nitive desposition.
Arrows indicate the hippocampal sulcus (superfi cial part). (Modifi ed aft er Williams 1995) 1, cornu Ammonis; 2, gyrus dentatus; 3, hippocampal sulcus
(deep or vestigial part); 4, fi mbria; 5, prosubiculum, 6, subiculum proper; 7, presubiculum; 8, parasubiculum; 9, entorhinal area; 10, parahippocampal
gyrus; 11, collateral sulcus; 12, collateral eminence; 13, temporal (inferior) horn of the lateral ventricle; 14, tail of caudate nucleus; 15, stria terminalis;
16, choroid fi ssure and choroid plexuses; 17, lateral geniculate body; 18, lateral part of the transverse fi ssure (wing of ambient cistern); 19, ambient
cistern; 20, mesencephalon; 21, pons; 22, tentorium cerebelli. Used with permission from Williams, Peter. Gray’s Anatomy. 38th edition. New York:
Churchill Livingstone, 1995.