BIO 468 Lecture Notes - Lecture 3: Chondrichthyes, Autonomic Nervous System, Spinal Nerve

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The nervous system: the nervous system is the most important regulatory system of the body, most nervous systems are organized into three functional divisions: an afferent sensory division; integrating centers; and an efferent division. Sensory receptors convert the energy from incoming stimuli of various kinds to changes in membrane potential. Afferent neurons conduct these signals in the form of action potentials to integrating centers such as the brain or ganglia. Interneurons within the integrating centers process the information and send out signals via efferent neurons to effectors such as the muscles and internal organs, resulting in changes in behavior or physiological processes. The nervous system consists of two parts: central nervous system (cns, brain, spinal cord, peripheral nervous system (pns, nerve fibers that carry information between the cns and other parts of the body. I(cid:374)tegratio(cid:374) of i(cid:374)for(cid:373)atio(cid:374) e(cid:374)sures that a perso(cid:374)"s respo(cid:374)ses are s(cid:373)ooth a(cid:374)d (cid:272)oordi(cid:374)ated rather than clashing and disjointed. Innervates the skeletal muscle: autonomic nervous system.

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