(Adapted from Fiala and Harris, 1999.)
| Neuron | Average soma diameter (µm) | Number of dendrites at soma | Proximal dendrite diameter (µm) | Number of branch points | Distal dendrite diameter (µm) | Dendrite extent* (µm) | Total dendritic length (µm) |
|---|---|---|---|---|---|---|---|
| Cerebellar granule cell (cat) | 7 | 4 | 1 | 0 | 0.2-2 | 15 | 60 |
| Starburst amacrine cell (rhesus) | 9 | 1 | 1 | 40 | 0.2-2 | 120 | -- |
| Dentate gyrus granule cell (rat) | 14 | 2 | 3 | 14 | 0.5-1 | 300 | 3,200 |
| CA1 pyramidal cell (rat) | 21 | 11,900 | |||||
| basal dendrites | 5 | 1 | 30 | 0.5-1 | 130 | 5,500 | |
| s. radiatum | 1 | 3 | 30 | 0.25-1 | 110 | 4,100 | |
| s. lacunosum-moleculare | 15 | 0.25-1 | 500 | 2,300 | |||
| Cerebellar Purkinje cell (guinea pig) | 25 | 1 | 3 | 440 | 0.8-2.2 | 200 | 9,100 |
| Principal cell of globus pallidus (human) | 33 | 4 | 4 | 12 | 0.3-0.5 | 1,000 | 7,600 |
| Meynert cell of visual cortex (macaque) | 35 | 15,400 | |||||
| basal dendrites | 5 | 3 | -- | -- | 250 | 10,200 | |
| apical dendrites | 1 | 4 | 15 | 2-3 | 1,800 | 5,200 | |
| Spinal alpha-motoneuron (cat) | 58 | 11 | 8 | 120 | 0.5-1.5 | 1,100 | 52,000 |
* The average distance from the cell body to the tips of the longest dendrites.
Sources: Ito (1984); Mariani (1990); Claiborne et al. (1990); Bannister and Larkman (1995); Rapp et al. (1994); Palay (1978); Yelnik et al. (1984); Ulfhake and Kellerth (1981). Full references.