Last modified on November 17, 2007, at 13:50

Brain stem

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The Brain stem is the most dorsal subdivision of the brain in the central nervous system. It is the primary conduit for incoming sensory information and outgoing motor control signals. It is composed of the medulla, pons and midbrain. In mammals, as opposed to other organisms, it is bifurcated by the medulla, although the reason is not fully understood.

See also


  • Martin, JH (2003). Neuroanatomy text and atlas 3rd ed., New York: McGraw-Hill.
  • Kandel, ER; Schwartz JH, Jessell TM (2000). Principles of Neural Science, 4th ed., New York: McGraw-Hill. ISBN 0-8385-7701-6.