click below
click below
Normal Size Small Size show me how
Finalrev
10-17
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 |