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(B) The total variety of contacts of the three positional classes involving bipolar dendrites and cone pedicles. (C) Pie charts showing the average proportions of your three positional classes of synapses. Information are imply ?SD for each and every bipolar cell variety (quantity of cells): IMB (6), BB (7), DB4 (6), DB5 (7), DB6 (5), GB (2) with SD (A-C). (D) A comparison of M/LGX818 site L-cone (left-handed bars, n = 12) and S-cone (right-handed bars, n = 6) divergence for the six varieties of ON bipolar cells. The abscissa would be the typical quantity of contacts of a cone with each kind of bipolar cells with the SD bar. (E) Pie charts comparing M/L-cones and S-cones inside the innervation of diverse bipolar varieties. (F) 3 positional classes of contacts: invaginationg, TA, and NTA within the ON and OFF routes diverging from an M/L-cone pedicle (P41) and an S-cone pedicle (P39) each positioned in the center in the examination location (Figure 5).Frontiers in Neuroanatomy | www.frontiersin.orgOctober 2016 | Volume 10 | ArticleTsukamoto and OmiMacaque ON Bipolar Cell ConnectivityTABLE 1 | Synaptic convergence of cones onto each and every ON bipolar cell type. Bipolar cell type (n) Variety of cells Number of cones per bipolar All Invagi. IMB (12) BB (7) DB4 (six) DB5 (7) DB6 (5) GB (2) 1.two ?0.4 1.7 ?0.eight eight.7 ?1.0 7.three ?1.1 six.2 ?1.three 12.5 ?0.7 26.3 ?two.5 24.1 ?four.eight 39.7 ?4.1 26.7 ?1.six 14.6 ?two.9 16.five ?2.1 26.0 ?2.six 23.9 ?5.0 19.0 ?3.3 16.7 ?5.eight five.0 ?two.eight 3.0 ?1.4 Quantity of contacts per bipolar Positional classes TA 0.three ?0.6 0.three ?0.five 16.7 ?two.six 7.1 ?4.three 8.four ?2.7 6.0 ?1.four NTA 0.0 ?0.0 0.0 ?0.0 four.0 ?2.eight two.7 ?2.9 1.2 title= s12687-015-0238-0 ?0.eight 7.5 ?0.7 Chromatic classes M/L-cone title= acr.22433 26.five ?three.1 0.0 ?0.0 39.5 ?4.2 26.1 ?two.1 14.2 ?two.4 15.five ?3.five S-cone 0.0 ?0.0 24.1 ?4.eight 0.2 ?0.four 0.6 ?1.5 0.4 ?0.5 1 ?1.TABLE 2 | Synaptic divergence of M/L- or S-cones to diverse ON bipolar cell forms.Edicle P39 had 34 ribbons. Each quantity of ribbons is close to its imply value title= s13578-015-0060-8 at three mm eccentricity (Imply ?SD: 31.three ?3.4 M/L-cone, n = 23; 31.eight ?2.8 for S-cone, n = ten, Tsukamoto and Omi, 2015a). 1 IMB and 7 DB cells had a total of 39 invaginating contacts with P41, whereas four BB cells had 43 invaginating contacts with P39. Thus the invaginating contacts outnumbered the ribbonsFrontiers in Neuroanatomy | www.frontiersin.orgOctober 2016 | Volume 10 | ArticleTsukamoto and OmiMacaque ON Bipolar Cell ConnectivityFIGURE 5 | Abundance in the 3 positional classes of synaptic contacts over the complete cone area for each and every ON bipolar cell kind.