FIGURE 2.
Determinants of dendritic morphology in spiny neurons of the forebrain. (A) Spiny neuron in the amygdaloid complex. In this and all the remaining panels, upper image is a camera lucida drawing, while the lower image is a conceptual representation of the dendritic tree. Upper image adopted from (Shaikh and Shaikh, 1982). (B) Medium spiny neuron (MSN) of the neostriatum. Upper image adopted from (Klapstein et al., 2001). (C) Spiny stellate cell in cortical layer 4. Upper image adopted from (Andjelic et al., 2009). (D) Cortical layer 5 pyramidal neuron. Upper image adopted from Gray’s Anatomy, p. 722. Major morphological distinction of L5 pyramidal neurons is the presence of an apical dendrite (striped area). Basilar dendrites are the common feature of all spiny neurons.