Exercise 15 Histology of Nervous Tissue Review Sheet Answers
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THE BASIC FUNCTIONAL UNIT OF THE NERVOUS Organization 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.
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NAME FOUR TYPES OF NEUROGLIA IN THE CNS, AND LIST A FUNCTION FOR EACH OF THESE CELLS.
1. ASTROCYTES, HELPS REGULATE THE EXTRACELLULAR Limerick OF Encephalon 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, Grade PART OF THE MYELIN SHEATHS OF AXONS WITHIN THE CNS.
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NAME THE PNS GLIAL CELL THAT FORMS MYELIN.
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Proper noun THE PNS GLIAL CELL THAT SURROUNDS DORSAL ROOT GANGLION NEURONS.
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THE BRAIN AND SPINAL Cord COLLECTIVELY
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SPECIALIZED SUPPORTING CELLS IN THE CNS
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JUNCTION OR POINT OF Close CONTACT Between NEURONS
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A Parcel OF Nerve PROCESSES Within THE CNS
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NEURON SERVING AS PART OF THE CONDUCTION PATHWAY Betwixt SENSORY AND MOTOR NEURONS
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GANGLIA AND SPINAL AND CRANIAL NERVES
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COLLECTION OF Nervus CELL BODIES Constitute OUTSIDE THE CNS
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NEURON THAT CONDUCTS IMPULSES Abroad FROM THE CNS TO MUSCLES AND GLANDS
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NEURON THAT CONDUCTS IMPULSES TOWARD THE CNS FROM THE BODY PERIPHERY
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CHEMICALS RELEASED By NEURONS THAT STIMULATE OR INHIBIT OTHER NEURONS OR EFFECTORS
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REGION OF THE CELL Trunk FROM WHICH THE AXON ORIGINATES
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SECRETES NEUROTRANSMITTERS
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RECEPTIVE REGION OF A NEURON
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INSULATES THE Nervus FIBERS
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SITE OF THE NUCLEUS AND Virtually Of import METABOLIC AREA
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MAY Be INVOLVED IN THE TRANSPORT OF SUBSTANCES Inside THE NEURON
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Substantially Crude ENDOPLASMIC RETICULUM, IMPORTANT METABOLICALLY
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IMPULSE GENERATOR AND TRANSMITTER
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DRAW A "TYPICAL" MULTIPOLAR NEURON. INCLUDE ANDD LABEL THE Post-obit STRUCTURES ON YOUR DIAGRAM: Cell BODY, NUCLEUS, NUCLEOLUS, nISSL bODIES, DENDRITES, AXON, AXON COLLATERAL Co-operative, MYELIN SHEATH, NODES OF RANVIER, AXON TERMINALS, AND NEUROFIBRILS.
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WHAT SUBSTANCE IS Establish IN SYNAPTIC VESICLES OF THE AXON Concluding?
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WHAT Function DOES THIS SUBSTANCE PLAY IN NEUROTRANSMISSION? (NEUROTRANSMITTER)
IT DIFFUSES ACROSS THE SYNAPTIC CLEFT TO Demark TO MEMBRANE RECEPTORS ON THE Adjacent NEURON; INITIATING AN ELECTRICAL Current (SYNAPTIC POTENTIAL).
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WHAT ANATOMICAL Characteristic DETERMINES WHETHER A Item NEURON IS CLASSIFIED As UNIPOLAR, BIPOLAR, AND MULTIPOLAR?
THEIR DIFFERENTIATED Co-ordinate TO THE NUMBER OF PROCESSES Attached TO THE CELL Trunk.
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Make A Uncomplicated LINE DRAWING OF EACH Type:
UNIPOLAR, BIPOLAR, OR MULTIPOLAR
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CORRECTLY IDENTIFY THE SENSORY (AFFERENT) NEURON, INTERNEURON (ASSOCIATION NEURON), AND MOTOR (EFFERENT) NEURON IN THE Figure.
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WHICH OF THESE NEURON TYPES IS/ARE UNIPOLAR?
SENSORY (AFFERENT) NEURON
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WHICH IS/ARE MOST LIKELY MULTIPOLAR?
INTERNEURON (Association NEURON)
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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.
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 Torso PERIPHERY.
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State THE LOCATION OF EACH OF THE Post-obit CONNECTIVE TISSUE COVERINGS.
ENDONEURIUM, PERINEURIUM, EPINEURIUM
ENDONEURIUM - INNER About LAYER, AN ADDITIONAL SHEATH THAT SURROUNDS THE MYELIN SHEATH.
PERINEURIUM - Center LAYER, Premises GROUPS OF FIBERS, FORMS BUNDLES OF FIBERS.
EPINEURIUM - OUTER MOST LAYER, Premises FASCICLES TOGETHER, FORMS THE CORDLIKE Nerve.
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WHAT IS THE FUNCTION OF THE CONNECTIVE TISSUE WRAPPINGS Plant IN A NERVE?
TO INSULATE FROM OTHER PROCESSES AND TO Demark AND Course BUNDLES, AND TO PROTECT.
A Nervus CARRYING BOTH SENSORY (AFFERENT) AND MOTOR (EFFERENT) FIBERS. Nigh NERVES OF THE Torso, INCLUDING ALL SPINAL NERVES ARE MIXED NERVES.
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Place ALL INDICATED PARTS OF THE Nervus Section.
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