nervous sytem Crossword

vertebrates made up in the spinal
physical senses
consists of the brain and the spinal cord, which occupy the dorsal body cavity.
the part of the nervous system outside the CNS, consist mainly of the nerves (bundles of axons) that extend from the brain and spinal cord.
composed of somatic motor nerve fibers that conduct impulses from the CNS to skeletal muscles. Voluntary.
consists of nerve fibers that convey impulses to the central nervous system from sensory receptors located throughout the body
the structural units of the nervous system, highly specialized cells that conduct messages in the form of nerve impulses from one part of the body to another.
are short, tampering, diffusely branching extensions; receptive regions. Recieves information from other nerve cells and transports it to the soma.
acts as natural pain killers, reducing our perception of pain under certain stressful conditions.
the first neurotransmitter identified