| Question | Answer |
| two types of cells that make up neural tissue | neurons, neuroglical cells |
| nervous system divided into 2 divisions what are they | CNS and PNS |
| the ____ nervous system contains brain and spinal cord | central |
| the _____ nervous system contains the spinal and cranial nerves | peripheral |
| list 2 divisons of the peripheral nervous system | sensory and motor |
| list 2 divisions of the motor divison | autonomic and somatic |
| which division of motor carries impulses to heart | autonomic |
| which divison of motor carries impulses to skeletal muscles | somatic |
| which division of peripheral n.s carries impulses to the muscles and glands | motor |
| which division of PNS picks up sensory info and sends it to the CNS | sensory |
| what is meant by the terms efferent and afferent | e= sends impulses away from CNSA= sends impules to CNS |
| ___ neurons carry impules away from CNS | motor |
| ___ neruons carry impulses towards the CNS | sensory |
| nerve impulses travel from neuron to neuron at junctions called | synapse |
| at resting membrane potential the ions are | polarized |
| if mem. has become more neg. it has become | hyperpolarized |
| if mem. has become less neg it has become | depolarized |
| the adding of stimuli to each other is called | summation |
| when stimuli add up to the point of producing an action potential it is known as a ___ stimulus | threshold |
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Ch.18 LTI-MA 509
