1. Afferent signals are sensory neuronal signals that ascend to the brain.2. This electric current creates action potentials within the connected afferent neurons. 3. The afferent of the muscle spindle bifurcates in the spinal cord. 4. Afferent nerve endings without mechanoreceptor cells are called free nerve endings.5. Autonomic nerves, like somatic nerves, contain afferent and efferent fibers. 6. The afferent neurons are either A fibers or C fibers. 7. The loss of afferent signals induces functional changes in dorsal horn neurons. 8. Type I afferent fibres have smaller receptive fields than type II fibres. 9. Afferents distribute to the posterior nucleus and periventricular nuclei of the hypothalamus.10. They contain both preganglionic parasympathetic fibers as well as visceral afferent fibers.
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