The
amygdala is a globular structure often seen protruding from
the ventromedial aspect of the pallium, just beneath the ventral
extent of the putamen and lateral to the inferior horn of the
fourth ventrical, which is medial to the hypothalamus.
The
several cellular portions of the amygdalar formation are listed
below and follow the nomenclature used by Alvin Berman.
- Basalis;
lateral & medial portions
- Centralis,
lies dorsally and long the rostrocaudal aspect
- cortical
nuleus
- Intercalated
subnuclei: several dark-stained cellular masses
- Lateralis;
large-celled portion
- Medialis
- Nuclei
of lateral olfactory tract
The
figure below is a series of coronal sections from the front to
the back of the amygdala. Ventromedially at the back of the series,
the amygdala presents its cortical subdivision at the ventromedial
surface. At the caudal level in this series, the rostral portion
of the ventral hippocampus begins. This is manatee #85-32.