Spinal-cord front horn {ventral horn} is for motor output and has descending motor nerves. Tracts are lateral corticospinal tract, anterior corticospinal tract, vestibulospinal tract, rubrospinal tract, reticulospinal tract, and tectospinal tract. Descending autonomic neurons come from hypothalamus and brainstem. Medial longitudinal fasciculus is for head and eye coordination and comes from vestibular nuclei.
Voluntary escape behaviors use small efferent spinal cord fibers with long latencies and variable responses, which react to visual, tactile, and vibratory threats.
Biological Sciences>Zoology>Organ>Nerve>Spinal Cord>Horn
4-Zoology-Organ-Nerve-Spinal Cord-Horn
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Date Modified: 2022.0224