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Unformatted text preview: chemical neurotransmitter? decreased (heart rate, blood pressure, sweating), increased (salivation, urination), acetylcholine release, bronchial and pupil constriction 7.) What are the three main portions of the brain and the function of each? cerebrum – higher learning, behavior cerebellum – posture, motor, balance brain stem - autonomic 8.) What is the brachial plexus and lumbosacral plexus? spinal nerves come together from neck to supply front leg; spinal nerves in lumbar to supply hind leg 9.) What is the major nerve of the hind limb? sciatic 10.) When the nerve impulse or action potential moves from node of ranvier to node it is called what? salutatory conduction...
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- Winter '08
- spinal cord PNS