Term: heterodendritic neuron

Definition: HNs give rise to long (350 to 500 micrometers), slender dendritic fields that may traverse the entire Ov. These neurons are located in similar proportions in the nuclear shell (41%) or in the core (59%). Somata of HNs are triangular, rounded, or spindle shaped, in order of frequency, measuring from 18 to 28 micrometers in the longest axis. As a rule, HNs possess long primary dendrites that terminate in second-order branches. These processes are covered by a moderate number of dendritic spines whose stems are uneven in length.