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Which of the following is not involved in creating the resting potential of a neuron?
Which nervous system component controls skeletal muscle contractions?
Art-labeling Activity: The divisions of the nervous system
Functions of astrocytes include all of the following except
The small space between the sending neuron and the receiving neuron is the
When calcium ions enter the synaptic terminal,
When neurotransmitter molecules bind to receptors in the plasma membrane of the receiving neuron,
If a signal from a sending neuron makes the receiving neuron more negative inside,
Enlargements of the spinal cord occur
Which of the following would occur in a resting membrane after a stimulus is applied?
The ion that triggers the release of acetylcholine into the synaptic cleft is
The site of intercellular communication between neurons is the
The period during which an excitable membrane cannot respond to further stimulation is the
Regions of the CNS where neuron cell bodies dominate constitute the ________ matter.
The resting potential of an undisturbed neuron occurs under which of the following conditions?
After age ________ the vertebral column continues to elongate, but the spinal cord itself does not.
Neurotransmitter for release is stored in synaptic
Small, wandering cells that engulf cell debris and pathogens in the CNS are called
The layer of the meninges in direct contact with the spinal cord is the
What type of conduction takes place in unmyelinated axons?
An action potential is self-regenerating because __________.
Why does regeneration of the action potential occur in one direction, rather than in two directions?
What is the function of the myelin sheath?
Which glial cells are found only in the PNS?
The myelin sheath that covers many CNS axons is formed by
Which event occurs at a synapse?
The generation of an action potential in a neuron requires the presence what type of membrane channels?
Opening of sodium channels in the axon membrane causes
The white matter of the spinal cord contains
The ________ is a strand of fibrous tissue that provides longitudinal support as a component of the coccygeal ligament.
The epidural space contains
Which of the following is not a function of the neuroglia?
The white matter of the spinal cord is/are
In saltatory propagation, a local current produces a(n):
Cerebrospinal fluid flows within the
________ line the brain ventricles and spinal canal.
Art-labeling Activity: Spinal nerves and regions of the spinal cord
The period from when an action potential begins until excitability returns is known as the ________ period.
The neurilemma of axons in the peripheral nervous system is formed by
Art-labeling Activity: Anatomical landmarks of the spinal cord
After a stroke, what type of glial cell accumulates within the affected brain region?
Art-labeling Activity: The anatomy of a multipolar neuron
The axon is connected to the cell body at the
The tiny gaps between adjacent Schwann cells are called
Which of the following are not types of neuroglia?
The ________ nervous system provides involuntary regulation of smooth muscle, cardiac muscle, and glandular activity.
The spinal cord continues to elongate until about age
The minimum stimulus required to trigger an action potential is known as the
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