Mossy fibers

- originate from many centers in the brain stem and spinal cord.

- include vestibulocerebellar, spinocerebellar, and pontocerebellar afferents.

- make multiple synapses on Purkinje fibers via interneurons. Synapses on Purkinje cells result in simple spikes.

- synapse on granule cells in glomeruli.

The axons of granule cells bifurcate and give rise to parallel fibers. The parallel fibers excite multiple Purkinje cells as well as inhibitory interneurons (basket, stellate, Golgi type II).

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Essentials of Human Physiology

Essentials of Human Physiology

This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.

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