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Exercise 17: Histology of Nervous Tissue

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created 4 years ago by jncanf
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Lab Exercise 17 pg.265-268 Im making these notecards to help, so if you use them, please sign up and help add more notecards! And dont forget to rate my helpfulness!!

updated 4 years ago by jncanf

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  • 1
    THE BASIC FUNCTIONAL UNIT OF THE NERVOUS SYSTEM IS THE NEURON. WHAT IS THE MAJOR FUNCTION OF THIS CELL TYPE?
    TO TRANSMIT AND GENERATE MESSAGES (NERVE IMPULSES) FROM ONE PART OF THE BODY TO ANOTHER.
  • 2
    NAME FOUR TYPES OF NEUROGLIA IN THE CNS, AND LIST A FUNCTION FOR EACH OF THESE CELLS.
    1. ASTROCYTES, HELPS REGULATE THE EXTRACELLULAR COMPOSITION OF BRAIN FLUID.

    2. EPENDYMAL CELLS, SECRETES CEREBROSPINAL FLUID & HELPS MOVE CEREBROSPINAL FLUID IN BRAIN AND SPINAL CORD.

    3. MICROGLIA, ARE PHAGOCYTIC CELLS IN THE CENTRAL NERVOUS SYSTEM (CNS)

    4. OLIGODENDROCYTES, FORM PART OF THE MYELIN SHEATHS OF AXONS WITHIN THE CNS.
  • 3
    NAME THE PNS GLIAL CELL THAT FORMS MYELIN.
    SCHWANN CELLS
  • 4
    NAME THE PNS GLIAL CELL THAT SURROUNDS DORSAL ROOT GANGLION NEURONS.
    SATELLITE CELLS
  • 5
    THE BRAIN AND SPINAL CORD COLLECTIVELY
    CENTRAL NERVOUS SYSTEM
  • 6
    SPECIALIZED SUPPORTING CELLS IN THE CNS
    NEUROGLIA
  • 7
    JUNCTION OR POINT OF CLOSE CONTACT BETWEEN NEURONS
    SYNAPSE
  • 8
    A BUNDLE OF NERVE PROCESSES INSIDE THE CNS
    NERVE
  • 9
    NEURON SERVING AS PART OF THE CONDUCTION PATHWAY BETWEEN SENSORY AND MOTOR NEURONS
    INTERNEURON
  • 10
    Ok, so you’re using my notecards which is great. I am glad I could help you out cause I wish I had someone to help me out when I took this course. I know Anatomy is super hard
    I only ask that if you find these notecards helpful, you join Easy Notecards and create at least one notecard set to help others out. It can be for any subject or class. Thanks and don’t forget to rate my helpfulness!
  • 11
    GANGLIA AND SPINAL AND CRANIAL NERVES
    TRACT
  • 12
    COLLECTION OF NERVE CELL BODIES FOUND OUTSIDE THE CNS
    GANGLION
  • 13
    NEURON THAT CONDUCTS IMPULSES AWAY FROM THE CNS TO MUSCLES AND GLANDS
    EFFERENT NEURON
  • 14
    NEURON THAT CONDUCTS IMPULSES TOWARD THE CNS FROM THE BODY PERIPHERY
    AFFERENT NEURON
  • 15
    CHEMICALS RELEASED BY NEURONS THAT STIMULATE OR INHIBIT OTHER NEURONS OR EFFECTORS
    NEUROTRANSMITTERS
  • 16
    REGION OF THE CELL BODY FROM WHICH THE AXON ORIGINATES
    AXON HILLOCK
  • 17
    SECRETES NEUROTRANSMITTERS
    AXON TERMINAL
  • 18
    RECEPTIVE REGION OF A NEURON
    DENDRITE
  • 19
    INSULATES THE NERVE FIBERS
    MYELIN SHEATH
  • 20
    SITE OF THE NUCLEUS AND MOST IMPORTANT METABOLIC AREA
    NEURONAL CELL BODY
  • 21
    MAY BE INVOLVED IN THE TRANSPORT OF SUBSTANCES WITHIN THE NEURON
    NEUROFIBRIL
  • 22
    ESSENTIALLY ROUGH ENDOPLASMIC RETICULUM, IMPORTANT METABOLICALLY
    NISSL BODIES
  • 23
    IMPULSE GENERATOR AND TRANSMITTER
    AXON
  • 24
    DRAW A "TYPICAL" MULTIPOLAR NEURON. INCLUDE ANDD LABEL THE FOLLOWING STRUCTURES ON YOUR DIAGRAM: CELL BODY, NUCLEUS, NUCLEOLUS, nISSL bODIES, DENDRITES, AXON, AXON COLLATERAL BRANCH, MYELIN SHEATH, NODES OF RANVIER, AXON TERMINALS, AND NEUROFIBRILS.
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  • 25
    WHAT SUBSTANCE IS FOUND IN SYNAPTIC VESICLES OF THE AXON TERMINAL?
    NEUROTRANSMITTER
  • 26
    WHAT ROLE DOES THIS SUBSTANCE PLAY IN NEUROTRANSMISSION? (NEUROTRANSMITTER)
    IT DIFFUSES ACROSS THE SYNAPTIC CLEFT TO BIND TO MEMBRANE RECEPTORS ON THE NEXT NEURON; INITIATING AN ELECTRICAL CURRENT (SYNAPTIC POTENTIAL).
  • 27
    WHAT ANATOMICAL CHARACTERISTIC DETERMINES WHETHER A PARTICULAR NEURON IS CLASSIFIED AS UNIPOLAR, BIPOLAR, AND MULTIPOLAR?
    THEIR DIFFERENTIATED ACCORDING TO THE NUMBER OF PROCESSES ATTACHED TO THE CELL BODY.
  • 28
    MAKE A SIMPLE LINE DRAWING OF EACH TYPE:
    UNIPOLAR, BIPOLAR, OR MULTIPOLAR
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  • 29
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    CORRECTLY IDENTIFY THE SENSORY (AFFERENT) NEURON, INTERNEURON (ASSOCIATION NEURON), AND MOTOR (EFFERENT) NEURON IN THE FIGURE.
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  • 30
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    WHICH OF THESE NEURON TYPES IS/ARE UNIPOLAR?
    SENSORY (AFFERENT) NEURON
  • 31
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    WHICH IS/ARE MOST LIKELY MULTIPOLAR?
    INTERNEURON (ASSOCIATION NEURON)
  • 32
    DESCRIBE HOW THE SCHWANN CELLS FROM THE MYELIN SHEATH AND THE NEURILEMMA ENCASING THE NERVE PROCESSES.
    SCHWANN CELLS WRAP THEMSELVES TIGHTLY AROUND THE AXON IN A JELLYROLL FASHION; AND THE NEURILEMMA IS A EXPOSED PLASMA MEMBRANE, HAS MANY SCHWANN CELLS AND IS A DISCONTINOUS SHEATH.
  • 33
    WHAT IS A NERVE?
    A NERVE IS A BUNDLE OF NEURON FIBERS (AXONS) WRAPPED IN CONNECTIVE TISSUE COVERING THAT EXTENDS TO AND FROM THE CNS AND VISCERAL ORGANS OR STRUCTURES OF THE BODY PERIPHERY.
  • 34
    STATE THE LOCATION OF EACH OF THE FOLLOWING CONNECTIVE TISSUE COVERINGS.

    ENDONEURIUM, PERINEURIUM, EPINEURIUM
    ENDONEURIUM - INNER MOST LAYER, AN ADDITIONAL SHEATH THAT SURROUNDS THE MYELIN SHEATH.

    PERINEURIUM - MIDDLE LAYER, BOUNDS GROUPS OF FIBERS, FORMS BUNDLES OF FIBERS.

    EPINEURIUM - OUTER MOST LAYER, BOUNDS FASCICLES TOGETHER, FORMS THE CORDLIKE NERVE.
  • 35
    WHAT IS THE FUNCTION OF THE CONNECTIVE TISSUE WRAPPINGS FOUND IN A NERVE?
    TO INSULATE FROM OTHER PROCESSES AND TO BIND AND FORM BUNDLES, AND TO PROTECT.
  • 36
    DEFINE MIXED NERVE
    A NERVE CARRYING BOTH SENSORY (AFFERENT) AND MOTOR (EFFERENT) FIBERS. MOST NERVES OF THE BODY, INCLUDING ALL SPINAL NERVES ARE MIXED NERVES.
  • 37
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    IDENTIFY ALL INDICATED PARTS OF THE NERVE SECTION.
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