synapse? -Answer the junction between the axon tip of the sending neuron and the
dendrite or cell body of the receiving neuron
nervous system? -Answer system containing a network of neurons
What body functions does the neuron system control? -Answer -receive sensory input
from internal and external environments
-transmits info
-integrate the input
-generate commands
-output to motor systems
phrenology Answer Bumps on the skull indicate developed skills associated with
regions of cortex
anterior (rostral) Answer front
posterior (caudal) Answer back
ventral (inferior) Answer bottom
dorsal (superior) Answer top
node of ranvier Answer area of axon between myelinated sections with many ion
channels
glutamate Answer primary excitatory CNS neurotransmitter
, temporal summation Answer integration of synaptic input over time
axon hillock Answer location of action potential initiation
metabotropic - type of receptor associated with slow chemical transmission (g-coupled
protein reactions)
GABA - main inhibitory neurotransmitter
spatial summation- the process whereby synaptic input from dendrite and cell body
regions is combined
synaptic cleft- the region between axon terminal and the dendrite membrane
EPSP is a hyperpolarization of postsynaptic membrane - false
The sensory receptors produce receptor potentials, which are electrical signals
propagated along the axon and then reach the CNS. -Answer false
are cells that provide support, nutrition, and assist with signaling of neurons
-Answer glia.
sagittal -Answer right and left division
coronal -Answer anterior and posterior division
axial (transverse) -Answer inferior and superior division.
two types of cells types in CNS -Answer -neurons
-Glia