Nerve MAP
________ monitor the position of skeletal muscles and joints.
Proprioceptors
The ________ division of the peripheral nervous system brings sensory information to the central nervous system.
afferent
The part of the peripheral nervous system that carries sensory information to the CNS is designated
afferent
________ carry sensory information to the CNS.
afferent neurons
nodes of ranvier
allow for saltatory conduction
Neurons that are rare, small, and lack features that distinguish dendrites from axons are called
anaxonic
The ________ nervous system provides involuntary regulation of smooth muscle, cardiac muscle, and glandular activity.
autonomic
The axon is connected to the soma at the
axon hillock
The afferent division of the PNS __________.
carries sensory information
Neurons
cells that send and receive signals
Neuroglia
cells that support and protect neurons
The ________ nervous system is composed of the brain and spinal cord.
central
Most neurons lack ________ and so are permanently blocked from undergoing cell division.
centrioles
________ nerves are nerves that connect to the brain.
cranial
The ________ division of the nervous system carries motor commands to muscles and glands.
efferent
________ carry motor information to peripheral effectors.
efferent neurons
more myelin=
faster propagation
Saltatory propagation occurs in _________ axons, in which action potentials _________.
myelinated; move from one node of Ranvier to another
axon hillock
primary location where action potential are fired from. If all the signals add up the action potential will fire
Which of the following is not a recognized structural classification for neurons?
pseudopolar
The ________ nervous system controls the skeletal muscles.
somatic
________ nerves are nerves that connect to the spinal cord.
spinal
Neurotransmitters ready for release are stored in synaptic
vesicles
The efferent division of the peripheral nervous system innervates ________ cells.
heart muscle glandular skeletal muscle smooth muscle
What are the types of sensory receptors?
interoceptors, exteroceptors, proprioceptors
Neurons that have several dendrites and a single axon are called
multipolar
The most abundant class of neuron in the central nervous system is
multipolar
________ neurons are the most common structural class in the CNS.
multipolar
The basic functional unit of the nervous system is the
neuron
The nervous tissue outside of the central nervous system composes the ________ nervous system.
peripheral
Dendrites
receive incoming signals from axon terminals from another neuron