Neuroanatomy Draw It To Know It

21. 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.