Nerve Word Scramble

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Question	Answer
Which of the following is not a function of the nervous system?	direct long-term functions, such as growth
The ________ nervous system is composed of the brain and spinal cord.	central
The ________ nervous system controls the skeletal muscles.	Somatic
The part of the peripheral nervous system that carries sensory information to the CNS is designated	Afferent
Which of the following is not a function of the neuroglia?	Memory
Which of the following are a type of glial cell found in the peripheral nervous system?	satellite cells
The largest and most numerous of the glial cells in the central nervous system are the	astrocytes
Functions of astrocytes include all of the following, except	conducting action potentials.
The myelin sheath that covers many CNS axons is formed by	oligodendrocytes
________ line the brain ventricles and spinal canal.	Ependymal cells
Small, wandering cells that engulf cell debris and pathogens in the CNS are called	microglia
The neurilemma of axons in the peripheral nervous system is formed by	Schwann cells.
Glial cells that surround the neurons in ganglia are	satellite cells
Which of the following is not a recognized structural classification for neurons?	pseudopolar
The most abundant class of neuron in the central nervous system is	multipolar
Clusters of RER and free ribosomes in neurons are called	Nissl bodies.
The cytoplasm that surrounds the nucleus of a neuron is called the	perikaryon
The axon is connected to the soma at the	axon hillock
Axons terminate in a series of fine extensions known as	telodendria
The site of intercellular communication between neurons is the	Synapse
The rabies virus travels to the CNS via	retrograde axoplasmic transport.
Neurons that are rare, small, and lack features that distinguish dendrites from axons are called	anaxonic
Neurons in which dendritic and axonal processes are continuous and the soma lies off to one side are called	Unipolar
Neurons that have one axon and one dendrite, with the soma in between, are called	Bipolar
Neurons that have several dendrites and a single axon are called	Multipolar
Sensory neurons of the PNS are	Unipolar
Which of the following activities or sensations is not monitored by interoceptors?	Sight
Which of the following is not involved in creating the resting potential of a neuron?	membrane permeability for sodium ions greater than potassium ions
Which of the following interactions between electrical and chemical gradients does not lead to the establishment of a neurons resting potential?	Electrical forces push sodium ions out of the cell
At the normal resting potential of a typical neuron, its Na-K ion exchange pump transports	3 intracellular sodium ions for 2 extracellular potassium ions.
Ion channels that are always open are called ________ channels.	Leak
Opening of sodium channels in the axon membrane causes	depolarization and increased positive charge inside the membrane. A and D
Voltage-gated channels are present	in the membrane that covers axons
The following are the main steps in the generation of an action potential.	4, 6, 7, 1, 2, 3, 5
The sodium-potassium ion exchange pump	moves sodium and potassium opposite to the direction of their electrochemical gradients.
The all-or-none principle states that	all stimuli great enough to bring the membrane to threshold will produce identical action potentials
_______ are the most numerous type of neuron in the CNS	Interneurons
The axon is connected to the soma at the	axon hillock
Which of the following does not influence the time necessary for a nerve impulse to be transmitted?	whether or not the impulse begins in the CNS
Which of the following comparisons between neurons and muscle tissue is false?	Action potentials are briefer in muscle fibers
) Which type of synapse is most common in the nervous system	chemical
The ion that triggers the release of acetylcholine into the synaptic cleft is	Calcium
If the chemically gated sodium channels in the postsynaptic membrane were completely blocked	synaptic transmission would fail
The same ________ can have different effects depending on the properties of the ________	neurotransmitter; receptor
) Raising the potassium ion concentration in the extracellular fluid surrounding a nerve cell will have which effect?	depolarize it
The smallest neuroglia of the CNS are the	microglia
The largest and most numerous neuroglia in the CNS are the	astrocytes
The function of the astrocytes in the CNS includes which of the following?	all
account for roughly half of the volume of the nervous system	Neuroglia
_ are the most numerous type of neuron in the CNS	Interneurons
In a(n) ________ neuron, the dendrites and axon are continuous or fused	Unipolar
neurons are short, with a cell body between dendrite and axon, and occur in special sense organs	Bipolar

Created by: y2420