chap 14- nervous tissue Flashcards
- Which does not belong to the peripheral nervous system?
A. Ganglion
B. Cranial nerve
C. Spinal cord
D. Peripheral nerve
E. Spinal nerve
C. Spinal cord
- Which is not a general function of the nervous system?
A. Transporting materials throughout the body
B. Collecting information
C. Processing and evaluating information
D. Responding to information
E. No exceptions; all are general functions of the nervous system
A. Transporting materials throughout the body
- The afferent division of the nervous system is also known as the _____ division.
A. motor
B. cranial
C. ganglial
D. efferent
E. sensory
E. sensory
- Which is not a function of the motor division of the nervous system?
A. Conducts output (nerve impulses) from the CNS
B. Transmits impulses to muscles and glands
C. Transmits impulses from the viscera
D. Voluntary control of skeletal muscle
E. Involuntary control of the heart
C. Transmits impulses from the viscera
- The portion of the nervous system that conducts impulses from the skin, joints, skeletal muscles, and
special senses is the _________ _______ division.
A. autonomic motor
B. somatic sensory
C. somatic motor
D. visceral sensory
B. somatic sensory
- The portion of the nervous system that has voluntary control over skeletal muscles is the _________
_________ division.
A. autonomic motor
B. somatic sensory
C. somatic motor
D. visceral sensory
C. somatic motor
- A neuron conducting an impulse from the CNS to the detrusor muscle of the urinary bladder would be
classified as a(n) _________ _________ neuron.
A. autonomic motor
B. somatic sensory
C. somatic motor
D. visceral sensory
A. autonomic motor
- A neuron conducting an impulse from the stomach wall to the CNS would be classified as a(n)
_________ _________ neuron.
A. autonomic motor
B. somatic sensory
C. somatic motor
D. visceral sensory
D. visceral sensory
- Which statement is correct concerning the terms afferent and efferent with respect to the nervous
system?
A. Afferent refers to the conduction of an impulse outward from the CNS.
B. Both terms refer to conducting impulses outward from the CNS although efferent pathways carry only
sensory impulses.
C. Efferent refers to the conduction of motor impulses toward the CNS.
D. Afferent refers to the conduction of sensory impulses toward the CNS.
E. Both terms refer to conducting impulses toward the CNS although afferent pathways carry only motor
impulses.
D. Afferent refers to the conduction of sensory impulses toward the CNS.
- Which two distinct cell types form nervous tissue?
A. Afferent cells and glial cells
B. Peripheral cells and neurons
C. Glial cells and neurons
D. Peripheral cells and glial cells
E. Glial cells and efferent cells
C. Glial cells and neurons
11.
Which is not characteristic of neurons?
A. High mitotic rate
B. High metabolic rate
C. Require continuous supplies of glucose and oxygen
D. Extreme longevity
E. No exceptions; all of these are characteristic of neurons
A. High mitotic rate
- The part of the neuron responsible for receiving, integrating, and sending nerve impulses is the
A. dendrite.
B. axon.
C. cell body.
D. axon hillock.
E. telodendrion.
C. cell body.
- Where are synaptic knobs located?
A. At the tips of telodendria
B. At the ends of dendrites
C. Within the cell body
D. Along axon collaterals
E. At the axon hillock
A. At the tips of telodendria
- The cytoplasm within a cell body of a neuron is called the
A. soma.
B. perikaryon.
C. neurokaryon.
D. chromatophilic substance.
E. chromatophobic substance.
B. perikaryon.
- What structures extend into the axon and dendrite of a neuron to provide tensile strength?
A. Motor filaments
B. Nissl bodies
C. Telodendria
D. Neurofibrils
E. Collateral fibers
D. Neurofibrils
- Structurally, the most common type of neuron is the _____ neuron.
A. multipolar
B. bipolar
C. unipolar
D. pseudounipolar
A. multipolar
- Functionally, 99 percent of neurons are
A. sensory neurons.
B. motor neurons.
C. multipolar neurons.
D. bipolar neurons.
E. interneurons.
E. interneurons.
- The neurons that are responsible for integrating information by retrieving, processing, storing, and
“deciding” how the body responds to stimuli are
A. sensory neurons.
B. motor neurons.
C. accessory neurons.
D. correlation neurons.
E. interneurons.
E. interneurons.
- Glial cells differ from neurons in that they
A. are larger and capable of meiosis.
B. are smaller and capable of mitosis.
C. are found only in the CNS.
D. are found only in the PNS.
E. transmit nerve impulses much more slowly.
B. are smaller and capable of mitosis.
- The most abundant glial cell in the CNS is the
A. astrocyte.
B. ependymal cell.
C. neurolemmocyte.
D. microglial cell.
E. oligodendrocyte.
A. astrocyte.
- The glial cell that helps to circulate cerebrospinal fluid is the
A. astrocyte.
B. ependymal cell.
C. neurolemmocyte.
D. microglial cell.
E. oligodendrocyte.
B. ependymal cell.
- The glial cell that myelinates and insulates axons within the CNS is the
A. astrocyte.
B. ependymal cell.
C. neurolemmocyte.
D. microglial cell.
E. oligodendrocyte.
E. oligodendrocyte.
- Which glial cell helps to form the blood-brain barrier?
A. Astrocyte
B. Ependymal cell
C. Neurolemmocyte
D. Microglial cell
E. Oligodendrocyte
A. Astrocyte
- Which glial cell myelinates and insulates axons in the peripheral nervous system?
A. Astrocyte
B. Ependymal cell
C. Neurolemmocyte
D. Microglial cell
E. Oligodendrocyte
C. Neurolemmocyte
- Which glial cell defends the body against pathogens?
A. Astrocyte
B. Ependymal cell
C. Neurolemmocyte
D. Microglial cell
E. Oligodendrocyte
D. Microglial cell
- Which glial cell protects neuron cell bodies located within ganglia?
A. Satellite cell
B. Ependymal cell
C. Neurolemmocyte
D. Astrocyte
E. Oligodendrocyte
A. Satellite cell
27.
Which glial cell occupies the space left by dying neurons?
A. Astrocyte
B. Ependymal cell
C. Neurolemmocyte
D. Microglial cell
E. Oligodendrocyte
A. Astrocyte
- Which glial cell provides structural support and organization to the CNS?
A. Astrocyte
B. Ependymal cell
C. Neurolemmocyte
D. Microglial cell
E. Oligodendrocyte
A. Astrocyte
- Which glial cell has perivascular feet that wrap around capillaries in the CNS?
A. Astrocyte
B. Ependymal cell
C. Neurolemmocyte
D. Microglial cell
E. Oligodendrocyte
A. Astrocyte
- What do all glial cells have in common?
A. They help to transmit the nerve signals.
B. They transfer blood to the various neurons.
C. They assist neurons in their respective functions.
D. They all attack pathogens.
E. They absorb extra blood and cerebrospinal fluid.
C. They assist neurons in their respective functions.
- The glossy-white appearance of most axons is due to
A. the high lipid content of the myelin sheath.
B. their proximity to light-reflecting cartilage.
C. their proximity to white bone.
D. the white color of the perivascular feet.
E. the covering of ependymal cells.
A. the high lipid content of the myelin sheath.
- Which is true regarding the action of a neurolemmocyte?
A. Each neurolemmocyte can form a myelin sheath around many axons simultaneously.
B. A neurolemmocyte is responsible for forming part of the blood-brain barrier.
C. Neurolemmocytes function only within the CNS.
D. Each neurolemmocyte can wrap only a 1mm portion of a single axon.
E. A neurolemmocyte attacks pathogens.
D. Each neurolemmocyte can wrap only a 1mm portion of a single axon.