Flashcards in Chapter 27 Deck (135)
Nervous systems receive _______, ______ it, and then _____
1. Sensory Input
2. Interpret it
3. Send out appropriate commands
Central Nervous Systems
What makes up the CNS?
brain and spinal cord
PNS stands for?
Peripheral Nervous System
is the PNS inside or outside of the CNS?
signals from sensory receptors to the CNS
located entirely in the CNS, integrate information
Convey signals to effector cells
involves the interpreting and responding to sensory output
______ convey signals to effector cells
______________ send signals from sensory receptors to the CNS
The two major divisions of the nervous system are the _______________.
central and peripheral nervous systems
________ are the functional units of nervous systems
Insulates axon for faster signal transmission
stimulus changes the
Membrane voltage is the:
energy of plasma membrane.
Membrane voltage depends on the:
charge difference between inside and outside of cell
Action Potentials are _____
self propagated in a one way chain reaction along a neuron
Action Potential is caused by a _____
Action potential allows ______:
one cell to communicate with the next cell in the circuit
Neurons communicate at _____
junctions where signals cross between cells
a chemical signal that can cross the space between cells
A variety of small molecules function as:
Neurotransmitter. Controls muscle function.