Cells and connections in cat

The following table provides counts of cells and connections in the cat cerebellum. The first two columns (Source cell and Cell count) are respectively a cell type and the count (number) of cells of that type. The values in the rest of the table give the number of connections from the Source cell to Target cells. These are specified as a pair of numbers: FO,FI. FO is fan-out (number of target cells each source cell contacts) and FI is fan-in (number of source cells going to each target cell). Data is from Figure 2 in [LoebnerEE-1989].

Values are either a Cell count, or FO,FI where FO is fan-out (number of target cells each source cell contacts) and FI is fan-in (number of source cells going to each target cell).

Source cell

Cell count

Target cell

basket

golgi

granule

purkinje

stellate

dcn

basket

7.5x10^6 [b1]

9, 50 [b2]

golgi

4.2x10^5 [g1]

?, ? [g2]

5.2x10^3, ? [g3]

granule

2.2x10^9 [r1]

?, 3.7x10^3 [r2]

?, 5.2x10^3 [r3]

200x10^3, 8.5x10^4 [r4]

?, 3.6x10^3 [r5]

purkinje

1.3x10^6 [p1]

?,? [p2]

35,860 [p3]; 35,700 [p4]

stellate

2.1x10^7 [s1]

3, 26 [s2]

dcn

4.6x10^4 [d1]

The table above was made using the sphinxcontrib-filltableref. Sphinx extension. See that link for documentation about the extension.

Original version of Cells and connections in cat table

The following version of the table was a prototype created using straight html. Using html made it difficult to write and does not allow specifying the data on different pages as is done using the sphinxcontrib-filltableref Sphinx extension. This prototype is being kept on the page (at least temporarily) to allow viewing the difference in the methods for creating the tables (html method, vs Sphinx extension method). To see the differences in the methods click on the “Page source” link on the lower right. That will show the source of the page (“rst” code).

Each row in the following table lists source cells on the left and destination cells on the top. The first column with numeric values gives the number of source cells. The other entries gives FO, FI. FO is fan-out (number of target cells each source contacts) and FI is fan-in (number source cells going to each target). All values are for the cat.

from_cell# cellsbasketgolgigranulepurkinjestellate
basket 7.5x10^6 -     9, 7.5x10^6  
golgi 4.2x10^5 ?, ? - 5.2x10^3, ?    
granule 2.2x10^9 ?,3.7x10^3 ?, 5.2x10^3 - 200x10^3, 8.5x10^4 ?, 3.6x10^3
purkinje 1.3x10^6       -  
stellate 2.1x10^7       3, 26 -