<unk> s (SSA) are the afferent nerve fibers that carry information from the<unk>  senses of vision, hearing and balance. The cranial nerves containing SSA fibers are the optic nerve (II) and the vestibulocochlear nerve (VIII). The term "SSA" also encompasses both<unk><unk>  and<unk>  visceral afferent fibers.
Special somatic afferent fiber
Special visceral afferent fiber
Postganglionic nerve fibers
Preganglionic nerve fibers
Efferent nerve fiber
Secondary sensory endings
Sensory nerve
Type Ia sensory fiber