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Question

The largest and most numerous types of neuroglia are the:

astrocytes.

microglia.

ependymal cells.

oligodendrocytes.
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Question

A neuron that has only one axon but several dendrites is classified as a _____ neuron.

multipolar

bipolar

unipolar

multidendritic
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week 7

anatomy

QuestionAnswer
The largest and most numerous types of neuroglia are the: astrocytes. microglia. ependymal cells. oligodendrocytes. astrocytes
A neuron that has only one axon but several dendrites is classified as a _____ neuron. multipolar bipolar unipolar multidendritic multi polar
The white matter of the nervous system is made up of: myelinated fibers. nuclei. unmyelinated fibers. ganglia. myelinated fibers.
Dendrites conduct impulses _____ cell bodies. toward away from within None of the above is correct. towards
Neurons in the CNS have less chance of regenerating for all of the following reasons except: there is no neurolemma in cells of the CNS astrocytes fill in the path of regrowth microglia lay scar tissue All lessen the chance of healing in the CNS microglia lay scar tissue
Regeneration of nerve fibers will take place only if the cell body is intact and the fibers have: nodes of Ranvier. a neurilemma. a myelin sheath. neurofibrils. a neurilemma.
Gray matter in the brain and spinal cord consists primarily of: nerve fibers. neuroglia. axons. cell bodies. cell bodies
Which of the following is not a function of the central nervous system (CNS)? Integrating sensory information Evaluating the information Initiating an outgoing response All of the above are functions of the CNS. All of the above are functions of the CNS.
The afferent pathways of the autonomic nervous system: stimulate the fight-or-flight response. maintain normal resting activity. carry feedback information to integrating centers in the brain. do both A and B. carry feedback information to integrating centers in the brain.
The nervous system can be divided: according to its structure. according to direction of information flow. by control of effectors. in all of the above ways. in all of the above ways.
Nerves that contain mostly afferent fibers are called _____ nerves. sensory motor mixed Schwann sensory
Which of the following compounds cannot cross the blood-brain barrier? Group of answer choices Water Carbon dioxide Glucose Dopamine dopamine
One of the components of the blood-brain barrier is: astrocytes. neurons. myelin. oligodendrocytes. astrocytes.
The autonomic nervous system does not stimulate: skeletal muscles. smooth muscles. glands. cardiac muscle. skeletal
A neuron that transmits a nerve impulse toward the central nervous system is called a(n): motor neuron. sensory neuron. interneuron. bipolar neuron. sensory neuron
In the human nervous system: most of the cells are neurons. most of the cells are glia cells. there are almost equal numbers of glia cells and neurons. the ratio of cells is unknown because of the complexity of the nervous system. there are almost equal numbers of glia cells and neurons.
Along a neuron, the correct pathway for impulse conduction is: dendrite, axon, cell body, and receptor. dendrite, cell body, and axon. axon, cell body, and dendrite. receptor, axon, and cell body. dendrite, cell body, and axon.
Which is not true of the myelin sheath? It is associated with white fibers in the brain. It is important for nerve impulse conduction. It covers cell bodies in the brain and spinal cord. It is destroyed in those with multiple sclerosis. It covers cell bodies in the brain and spinal cord.
Multipolar neurons have: multiple axons and multiple dendrites. multiple axons and one dendrite. multiple dendrites and one axon. one dendrite and one axon. multiple dendrites and one axon.
The nervous system is organized to do which of the following? Detect changes in the external environment. Detect changes in the internal environment. Evaluate changes in the environment. All of the above are true. All of the above are true.
Whats true of a reflex arc? It doesnt involve the brain. Always consists of afferent neuron and efferent neuron. Always consists of afferent neuron, efferent neuron, interneuron. Always consists of afferent neuron, efferent neuron, brain, spinal cord. Always consists of afferent neuron and efferent neuron.
The efferent pathways of the autonomic nervous system consist of the ________ nervous systems. peripheral and afferent sympathetic and parasympathetic sympathetic and efferent parasympathetic and somatic sympathetic and parasympathetic
The part of the nervous system that transmits impulses from the CNS to the skeletal muscle is the: somatic nervous system. autonomic nervous system. central nervous system. afferent division. somatic nervous system.
Small distinct regions of gray matter in the CNS are called: nuclei. tracts. ganglia. axons. nuclei.
Which of the following is the deepest connective tissue layer of a nerve? Endoneurium Perineurium Epineurium Fascicle Endoneurium
Interneurons reside in the: CNS and peripheral nervous system (PNS). CNS only. PNS only. None of the above is correct CNS only.
Astrocytes attach to: neurons. oligodendrocytes. blood vessels. both A and C. both A and C.
Fascicles are held together by a connective tissue layer called the: endoneurium. perineurium. macroneurium. epineurium. perineurium.
Most unipolar neurons are usually: motor neurons. neurons of the parasympathetic nervous system. sensory neurons. neurons of the sympathetic nervous system sensory neurons.
Schwann cells have a function in the PNS that is similar to that of which cells in the CNS? Oligodendrocytes Astrocytes Microglia Ependymal cells Oligodendrocytes
Created by: destinyyrobinson
 

 



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