Human Anatomy Chapter 14 Nervous tissue

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dahotstuff30
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297112
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Human Anatomy Chapter 14 Nervous tissue
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2015-02-28 13:58:29
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nervous tissue cell division motor nuclei
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Human Anatomy
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Human Anatomy Chapter 14 Nervous tissue
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  1. Structurally, the nervous system consists of which two subdivisions?

    A)somatic and visceral
    B)central and peripheral
    C)sensory and motor
    D)somatic and autonomic
    B)central and peripheral
    (this multiple choice question has been scrambled)
  2. Clusters of neuron cell bodies located outside the CNS are called

    A)centers
    B)ganglia
    C)nuclei
    D)nerves
    B)ganglia
    (this multiple choice question has been scrambled)
  3. Which functional division of the nervous system includes the SNS and ANS?

    A)peripheral
    B)central
    C)sensory
    D)motor
    D)motor
    (this multiple choice question has been scrambled)
  4. In the PNS, components of the afferent division include

    A)interneurons
    B)motor neurons
    C)sensory neurons
    D)all of the above
    C)sensory neurons
    (this multiple choice question has been scrambled)
  5. Which effectors are innervated by visceral motor neurons?

    A)cardiac muscle, smooth muscle, and glands
    B)somatic effectors other than skeletal muscle
    C)skeletal muscle, skin, and joints
    D)interneurons of the CNS
    A)cardiac muscle, smooth muscle, and glands
    (this multiple choice question has been scrambled)
  6. The two distinct cell types that compose all nervous tissue are

    A)oligodendrocytes and ependymal cells
    B)satellite cells and neurolemmocytes
    C)neurons and glial cells
    D)microglia and astrocytes
    C)neurons and glial cells
    (this multiple choice question has been scrambled)
  7. In neurons, the abundant free and bound ribosomes are collectively called the

    A)chromatophilic substance
    B)axon hillock
    C)perikaryon
    D)neurofibrils and neurotubules
    A)chromatophilic substance
    (this multiple choice question has been scrambled)
  8. The slightly expanded tips of telodendria are called

    A)synaptic knobs
    B)synapses
    C)axon terminals
    D)axon collaterals
    A)synaptic knobs
    (this multiple choice question has been scrambled)
  9. The cytoplasm in a neuron cell body (or sometimes the entire cell body) is called the

    A)neurilemma
    B)perineurium
    C)perikaryon
    D)epineurium
    C)perikaryon
    (this multiple choice question has been scrambled)
  10. Structural categories of neurons include which of the following?

    A)afferent, association, and efferent
    B)sensory, motor, and interneurons
    C)unipolar, bipolar, and multipolar
    D)all of the above
    B)sensory, motor, and interneurons
    (this multiple choice question has been scrambled)
  11. Neurons with numerous dendrites and a single axon are structurally classified as

    A)association neurons
    B)motor neurons
    C)pseudounipolar neurons
    D)multipolar neurons
    D)multipolar neurons
    (this multiple choice question has been scrambled)
  12. Efferent neurons transmit nerve impulses

    A)from sensory receptors to the CNS
    B)from the spinal cord to the brain
    C)between interneurons in the CNS
    D)from the CNS to muscles or glands
    D)from the CNS to muscles or glands
    (this multiple choice question has been scrambled)
  13. Collectively, glial cells do all of the following except

    A)provide a supporting framework for all nervous tissue
    B)synthesize neurotransmitters and conduct nerve impulses
    C)physically protect and help nourish neurons
    D)guide young migrating neurons during development
    B)synthesize neurotransmitters and conduct nerve impulses
    (this multiple choice question has been scrambled)
  14. The word root glia, as in "glial cells," most nearly means

    A)to clasp
    B)star
    C)small
    D)glue
    D)glue
    (this multiple choice question has been scrambled)
  15. Which pair names only neuroglia of the central nervous system?

    A)microglia and neurolemmocytes
    B)oligodendrocytes and satellite cells
    C)astrocytes and interneurons
    D)ependymal cells and astrocytes
    D)ependymal cells and astrocytes
    (this multiple choice question has been scrambled)
  16. Which description refers to oligodendrocytes?

    A)small cells with slender branches from the cell body
    B)flattened cells wrapped around axons to form myelin
    C)large, bulbous cells with slender cytoplasmic extensions
    D)large, star-shaped cells with numerous cell processes
    C)large, bulbous cells with slender cytoplasmic extensions
    (this multiple choice question has been scrambled)
  17. The largest and most abundant of the CNS glial cells, ____________ help form the blood-brain barrier.

    A)oligodendrocytes
    B)astrocytes
    C)neurolemmocytes
    D)ependymal cells
    B)astrocytes
    (this multiple choice question has been scrambled)
  18. Which types of glial cells are found in the peripheral nervous system?

    A)microglia and ependymal cells
    B)oligodendrocytes and astrocytes
    C)neurolemmocytes and satellite cells
    D)all of the above
    C)neurolemmocytes and satellite cells
    (this multiple choice question has been scrambled)
  19. Which term describes the collection of lipids and proteins that may form a protective coating around an axon?

    A)node of Ranvier
    B)endoneurium
    C)myelin
    D)neurofibril
    C)myelin
    (this multiple choice question has been scrambled)
  20. Myelination affects nerve impulse conduction in which of the following ways?

    A)permits nerve impulses to travel continuously along the entire axon
    B)slows the nerve impulse by exposing only limited parts of the axon
    C)allows saltatory conduction from one neurofibril node to the next
    D)all of the above
    A)permits nerve impulses to travel continuously along the entire axon
    (this multiple choice question has been scrambled)
  21. Axon regeneration in the PNS involves ____________ in a process known as Wallerian ____________.

    A)ependymal cells; neogenesis
    B)neurolemmocytes; degeneration
    C)oligodendrocytes; replacement
    D)satellite cells; stimulation
    B)neurolemmocytes; degeneration
    (this multiple choice question has been scrambled)
  22. Nerves are bundles of parallel axons in the PNS that have three successive connective tissue wrappings, called the

    A)deep fascia, subserous fascia, and superficial fascia
    B)pia mater, arachnoid layer, and dura mater
    C)endoneurium, perineurium, and epineurium
    D)endomysium, perimysium, and epimysium
    D)endomysium, perimysium, and epimysium
    (this multiple choice question has been scrambled)
  23. The point at which two excitable cells contact to exchange information is called a

    A)gap junction
    B)neurofibril node
    C)synapse
    D)flash point
    C)synapse
    (this multiple choice question has been scrambled)
  24. The synaptic knob of a neuron may contact another neuron anywhere except on its

    A)dendrites
    B)myelin sheath
    C)synaptic knob
    D)cell body
    B)myelin sheath
    (this multiple choice question has been scrambled)
  25. At a chemical synapse, the presynaptic membrane releases a signaling molecule called a

    A)neurotransmitter
    B)nerve impulse
    C)hormone
    D)synaptic enzyme
    A)neurotransmitter
    (this multiple choice question has been scrambled)
  26. Which one of the following is not a step in the conduction of a nerve impulse across a chemical synapse?

    A)neurotransmitter molecules diffuse across the synaptic cleft to the postsynaptic cell
    B)a voltage change in the postsynaptic cell triggers a nerve impulse to begin there
    C)the nerve impulse causes an influx of Ca2+ ions into the synaptic knob
    D)calcium ions entering the synaptic cleft cause the endocytosis of synaptic vesicles
    D)calcium ions entering the synaptic cleft cause the endocytosis of synaptic vesicles
    (this multiple choice question has been scrambled)
  27. The rate of conduction of a nerve impulse is influenced by the

    A)strength and frequency of the stimulus that initiated it
    B)number of telodendria and presence or absence of axon collaterals
    C)length of the axon and number of axon collaterals
    D)diameter of the axon and presence or absence of a myelin sheath
    D)diameter of the axon and presence or absence of a myelin sheath
    (this multiple choice question has been scrambled)
  28. Which description doesnot accurately characterize neuronal pools?

    A)have limited number of input sources and output destinations
    B)have numerous types of circuits defined by structural features
    C)consist of complex patterns of interconnected neurons
    D)may be localized or distributed in several different regions of the CNS
    B)have numerous types of circuits defined by structural features
    (this multiple choice question has been scrambled)
  29. All of the following are types of neuronal circuits except

    A)proliferating
    B)diverging
    C)reverberating
    D)converging
    A)proliferating
    (this multiple choice question has been scrambled)
  30. In the embryo, the neural plate (which gives rise to most nervous tissue structures) develops from

    A)mesoderm
    B)ectoderm
    C)endoderm
    D)all of the above
    B)ectoderm
    (this multiple choice question has been scrambled)
  31. What accounts for the gray color of gray matter?

    A)presence of Nissl bodies
    B)absence of myelin
    C)both of the above
    D)neither of the above
    C)both of the above
  32. Bundles of neurofilaments extending into dendrites and axons to provide structural support are called

    A)nerve fibers
    B)neurotubules
    C)nodes of Ranvier
    D)neurofibrils
    D)neurofibrils
    (this multiple choice question has been scrambled)
  33. The phrase "terminally differentiated," as applied to mature neurons, means that they

    A)cannot divide mitotically to produce daughter cells
    B)have axon terminals specialized for impulse conduction
    C)process energy differently after reaching maturity
    D)cannot regenerate damaged parts
    A)cannot divide mitotically to produce daughter cells
    (this multiple choice question has been scrambled)
  34. Although they outnumber ____________ by as much as ten to one, ____________ account for only about half of the total volume of the nervous system.

    A)neurons; glial cells
    B)astrocytes; oligodendrocytes
    C)interneurons; sensory neurons
    D)neuroglia; neurons
    A)neurons; glial cells
    (this multiple choice question has been scrambled)
  35. Their methods are different, but ____________ in the CNS and ____________ in the PNS perform similar functions.

    A)astrocytes; neurolemmocytes
    B)ependymal cells; satellite cells
    C)oligodendrocytes; neurolemmocytes
    D)microglia; satellite cells
    C)oligodendrocytes; neurolemmocytes
    (this multiple choice question has been scrambled)
  36. Which glial cells behave much like certain leukocytes?

    A)ependymal cells
    B)oligodendrocytes
    C)microglia
    D)satellite cells
    C)microglia
    (this multiple choice question has been scrambled)
  37. Although classified as glial cells, ____________ are also ____________ that line the cavities in the brain and spinal cord and help form the choroid plexus.

    A)astrocytes; phagocytes
    B)oligodendrocytes; epithelial cells
    C)microglia; phagocytes
    D)ependymal cells; epithelial cells
    D)ependymal cells; epithelial cells
    (this multiple choice question has been scrambled)
  38. In the PNS, an axon may be enveloped by ____________ without being ____________.

    A)endoneurium; in a nerve
    B)neurolemmocytes; myelinated
    C)satellite cells; in a ganglion
    D)oligodendrocytes; myelinated
    B)neurolemmocytes; myelinated
    (this multiple choice question has been scrambled)
  39. Which glial cells participate in the repair of damaged nerves?

    A)satellite and ependymal cells
    B)astrocytes and microglia
    C)oligodendrocytes
    D)neurolemmocytes
    D)neurolemmocytes
    (this multiple choice question has been scrambled)
  40. Which nervous system divisions or components contain no afferent neurons?

    A)PNS and ANS
    B)ANS and SNS
    C)CNS and PNS
    D)somatic and visceral sensory
    B)ANS and SNS
    (this multiple choice question has been scrambled)
  41. Ironically, a ____________ neuron typically has more dendrites than a ____________ neuron.

    A)bipolar; multipolar
    B)unipolar; multipolar
    C)sensory; multipolar
    D)unipolar; bipolar
    D)unipolar; bipolar
    (this multiple choice question has been scrambled)
  42. A multipolar neuron that synapses on a gland cell is functionally classified as

    A)a sensory neuron
    B)an interneuron
    C)a visceral motor neuron
    D)a somatic motor neuron
    C)a visceral motor neuron
    (this multiple choice question has been scrambled)
  43. In terms of nerve impulse conduction, unmyelinated is to ____________ as myelinated is to ____________.

    A)neurolemmocytes; oligodendrocytes
    B)saltatory; continuous
    C)continuous; saltatory
    D)oligodendrocytes; neurolemmocytes
    C)continuous; saltatory
    (this multiple choice question has been scrambled)
  44. A nerve impulse involves ____________ across a neuron's plasma membrane.

    A)both a and b
    B)neither a nor b
    C)changes in voltage
    D)movement of ions
    A)both a and b
    (this multiple choice question has been scrambled)
  45. Axon regeneration in the CNS is restricted by which of the following factors?

    A)oligodendrocytes do not release a nerve growth factor
    B)crowded axons in the brain and spinal cord complicate regrowth
    C)astrocytes and connective tissue coverings may form obstructive scar tissue
    D)all of the above
    D)all of the above
  46. At a chemical synapse, ____________ are found only in the plasma membrane of the ____________ cell.

    A)neurotransmitters; postsynaptic
    B)receptor proteins; presynaptic
    C)neurotransmitters; presynaptic
    D)receptor proteins; postsynaptic
    D)receptor proteins; postsynaptic
    (this multiple choice question has been scrambled)
  47. Synapses are categorized on the basis of

    A)size of synaptic knob and mode of impulse transmission
    B)direction of signal and speed of impulse transmission
    C)shape of synaptic knob and speed of impulse transmission
    D)point of contact and mode of impulse transmission
    D)point of contact and mode of impulse transmission
    (this multiple choice question has been scrambled)
  48. Which structural classes of neurons are always sensory in function?

    A)unipolar, bipolar, and multipolar
    B)unipolar and bipolar
    C)multipolar and unipolar
    D)bipolar and multipolar
    B)unipolar and bipolar
    (this multiple choice question has been scrambled)
  49. The ____________ is the only functional class of neuron entirely restricted to the ____________ nervous system.

    A)association neuron; central
    B)motor neuron; peripheral
    C)sensory neuron; central
    D)interneuron; peripheral
    A)association neuron; central
    (this multiple choice question has been scrambled)
  50. Which of the following are structural, as opposed to functional, divisions of the nervous system?(1) CNS (2) SNS (3) PNS (4) ANS

    A)1 and 3
    B)2 and 4
    C)3 and 4
    D)1 and 2
    A)1 and 3
    (this multiple choice question has been scrambled)
  51. With regard to control of effectors, ____________ is to involuntary as ____________ is tovoluntary.

    A)somatic; visceral
    B)central; peripheral
    C)autonomic; somatic
    D)somatic; peripheral
    C)autonomic; somatic
    (this multiple choice question has been scrambled)
  52. Sensory neurons in which of the following locations receive and transmit only visceral input?(1) skin (2) joints (3) heart (4) fascia (5) stomach
    A)1 and 2
    B)3 and 5
    C)2, 3, 4, and 5
    D)3, 4, and 5
    B)3 and 5
    (this multiple choice question has been scrambled)
  53. Touch, vibration, and proprioception are examples of

    A)special somatic senses
    B)special visceral senses
    C)general visceral senses
    D)general somatic senses
    D)general somatic senses
    (this multiple choice question has been scrambled)
  54. Which statement is false regarding neural circuits?

    A)diverging circuits spread information from one neuron or pool to several others
    B)in parallel-after-discharge circuits, a single input leads to multiple individual outputs
    C)in reverberating circuits, feedback repeatedly stimulates the circuit in a cyclic pattern
    D)converging circuits provide multiple input to a single postsynaptic neuron
    B)in parallel-after-discharge circuits, a single input leads to multiple individual outputs
    (this multiple choice question has been scrambled)
  55. Increased dietary intake of vitamin B12 and ____________ during pregnancy can dramatically reduce the incidence of neural tube defects such as ____________.

    A)ascorbic acid (vitamin C); neuritis and demyelination
    B)iron; Guillain-Barré syndrome
    C)pantothenic acid; amyotrophic lateral sclerosis
    D)folic acid (folate); anencephaly and spina bifida
    D)folic acid (folate); anencephaly and spina bifida
    (this multiple choice question has been scrambled)

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