C. ESTABLE 



325 



between the synapses [a) with microvesiclcs and mitochondria only in 

 the pre-synaptic pars; (h) with microvesiclcs and only mitochondria in 

 the post-synaptic pars; [c) with nncrovesiclcs only m the pre-synaptic 





Fig. 16 

 Parasynapscs (III) — Axo-somatic synapses — A.S. syn. — of a motor 

 neurone of the cervical spinal cord. Adult man. This shows tiic 

 terminations of fibres depicted in Figs. 14 and 15. 



pars; (d) with microvesiclcs and mitochondria only in the pre-synaptic 

 pars; {e) with only microvesiclcs in the post-synaptic pars; (f) without 

 mitochondria or microvesiclcs, either in the pre-synaptic or in the post- 

 synaptic pars? 



