Xii

Hypoglossal

Primarily motor

Motor fibers transmit impulses to muscles that move the tongue; some proprioceptor input.

gion, anterior branches of the spinal nerves combine to form complex networks called plexuses instead of continuing directly to the peripheral body parts. In a plexus, the fibers of various spinal nerves are sorted and recom-bined, so that fibers associated with a particular peripheral body part reach it in the same nerve, even though the fibers originate from different spinal nerves (fig. 11.33).

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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