Nervous tissue
Which statement regarding interneurons is true
Are associated with neurons
Creates the minority of neurons in the human CNS
Can connect motor neurons with sensory neurons
Can be multipolar neurons or anaxonic
Compromise 99 percent of all neurons in adults
Which statement regarding nerve tissue is true
Nervous tissue is vasculated
Perikaryon is a central portion of the nerve cell where the nucleus perinuclear cytoplasm are contained
Sensory neurons are sending impulses to effector organs/ tissues
Sensory neurons are afferent
Motor neurons are sending impulses to effector organs/tissues
Which statement regarding lemmocytes is true
Form myelinated fiber and umyelinated fibers in PNS
Are called also Schwann cells
Are present in the PNS
Are responsible for myelination in the CNS
Which statement regarding neurons is true
Multipolar has many axons and one dendrite
Pseudounipolar can be found in the spinal cord
Nissle bodies are found in perikaryon and dendrites
Is metabolic active cell
Which statement regarding unmyelinated axons is true
Myelin sheath wraps each axon
Schwann cells envelop just one axon
Schwann celll envelope multiple axons
Nodes of ranvier are commonly visible along unmyelinated nerve fibers
Which connection: cell- place of presence is correct
Satellite cells- central nervous system
Ependymocytes- central canal
Oligodendrocytes- central nervous system
Astrocytes- peripheral nervous system
Which statement regarding epineurium is true
Surrounds the whole nerve
Directly surrounds the external laminae of the schwann cells
Contains the blood vessels
Surrounds one fascicle of nerve fibers
Dense connective tissue
From the neural crest arise
Melanocytes
C-cells of thyroid gland
Schwann cells
Medulla of adrenal gland
Mesenchyme of the pharyngeal arches
Adenohypophysis
Parathyroid
Which statement regarding nervous tissue is true
Dendrites contain nissle bodies
Sensory neurons conduct nerve impulse to CNS
Synapses are structures responsible for the transmission of nerve impulses from one neuron to the other
Nervous tissue is highly vascularized
Neruronal signals are conducted faster in electrical synapses than in chemical
Pseudounipolar neurons can be found in the olfactory epithelium
Which statement regarding glial cells is true
Protoplasmic astrocytes are present in the gray matter of the CNS
Schwann cells form myelinated and unmyelinated coverings over axons of the PNS
Their function is the metabolic and mechanical support and protection of neurons
Ependymal cells can be ciliated in some regions
Astrocytes belong to mononuclear phagocytic system
Astrocytes form pedicles
Which statement regarding neurons is true
Nissle bodies are found in perikaryon and dendrites
Most neurons have only one dendrite
Neurons are metabolic inactive cells
Multipolar has many axons and one dendrite
Which statement regarding ganglia is true
Are divided into sensory or an autonomic ganglia
Sensory ganglia are surrounded by connective tissue capsule
Are composed of both perikaryons and nerve fibers
Cosists only of ganglion cells
Multipolar neurons are present in autonomic ganglia
Are surrounded by endoneurium
Are composed of nerve fibers only
Which statement regarding unmyelinated axons is true
Schwann cells envelop multiple axons
Oligodendrocytes envelop axons in PNS
Nodes of Ranvier are commonly visible along unmyelinated nerve fibers
Myelin sheath wraps each axon
Schwann cells envelop just one axon
Which statement regarding epineurium is true
Surounds the whole nerve
Contains the blood vessels
Is covering the CNS
Is covering axons and schwann cells
Have a rich netwrok of reticular fibers
Surrounds single nerve fibers
Which connection: cells- place of presence, is correct
Satellite cells- ganglia
Oligodendrocytes- central nervous system
Ependomocytes- central canal
Microglial- central nervous system
Oligodendrocytes- peripheral nervous system
Which statement regarding interneuons is true
Can connect motor neurons with sensory neurons
Can be multipolar neurons
Creates the majority of neurons in the human CNS
Are a type of sensory neuron
Their axons are always myelinated
Creates the minority of neurons in the human CNS
Neurons
Multiplar consists of perikaryon (cell body), dendrites and axon
They have a euchromatic, prominent nucleus
RER and free ribosomes are basophilic granules called Nissl bodies
Bipolar neurons have only one dendrite and one axon
Multipolar has many dendrites and one axon
Neurons
Is composed of perikaryon and processes
Contains euchromatic nucleus
Neuron bodies can be found in gray matter
Is metabolic active
Multipolar neurons have only one dendrite
Bipolar neurons have one dendrite
The majority of neurons in the body are multipolar
Bipolar neurons are found in retina
Purkinje cells are found in cerebral cortex
Pyramidal cells are found in cerebral cortex
Pseudounipolar neurons are found in spinal ganglia
Find true sentences- glial cells and neurons
Microglia can phagocytose foreign substances
Astrocytes are part of blood- brain- barrier
Perikaryon could contain lipofuscin
The nucleus of neuron is spherical, large, euchromatic
Axons are the longest processes of neurons
Oligodendrocytes are found in CNS
Myelin sheath in CNS are produced by oligodendrocytes
Perineurium is dense connective tissue surrounds one fascicle of nerve fibers
Epineurium is an external fibrous coat of nerves
Find true sentencens regarding nerve tissue
Sensory ganglion consists of both perikaryon and nerve fibers
Pseudounipolar neurons are located within sensory ganglion
Sensory ganglion is located outside the spinal cord
Sensory neurons conduct nerve impulse to the CNS
Motor neurons are efferent
Sensory neurons are afferent
Bipolar neurons can be found in the olfactory epithelium
Ependymocytes line the central canal of the spinal cord
Nerve tissue is vascularized
Ependymal cells line ventricles of brain
Oligodendrocytes
Can be found in autonomic ganglia
Are myelin- producing cells in CNS
Are elements of neuroglia
Produce myelin sheath in central nervous tissue
Oligodendrocytes exist mostly in white matter of CNS
Present in the spinal cord and cerebrum
Bipolar cells in retina
Represent the second neuron of the optic way
Connect rod and cones to ganglion cells
Located in the inner nuclear layer
Which glial cells differentiate from neuroectoderm
Ependymal cells
Schwann cells
Satellite cells
Fibrous astrocytes
Microglia- bone marrow
Peripheral nerves
The nerve fibers are grouped in bundles
Each bundle is surrounded by perineurium
Are composed of numerous of nerve fibers
Have external fibrous coat- epineurium
Each nerve fiber is surrounded by endoneurium
Sensory ganglia
The connective tissue capsule envelops the ganglia
They contain pseudounipolar neuron bodies surrounded by satellites cells
Perikaryons of neurons can be found in sensory ganglia
Are part of the PNS
Have pseudounipolar neurons
Satellite cells surround neuronal cell bodies
Contain satellite cells
Nissl bodies
Are found in dendrites
Are composed of RER and poly ribosomes
Participate in synthesis of proteins
Are type of inclusions
Dendrite
Become thinner as is subdivided into branches
Most neurons have many dendrites
Is usually shorter processes than axon
Is specialized in conduction impulses from other cells to perikaryon
The cytoplasmic compositions is similar to that of perikaryon
Bipolar neurons have one dendrites and one axon
Multipolar has many dendrites and one axon
Dendrites and perikaryns contain Nissl's bodies substance
Contain Nissle bodies
Receive many synapses
Usually does not subdivide into branches
Which structure can be found in the gray matter
Astrocytes
Capillaries
Microglial cells
Neuron bodies
Dendrites
Initial segment of axons
Myelin sheath
Contain many layers of modified cell membranes
Gaps are called nodes of ranvier
Internode is the distance between two nodes of ranvier
Myelin sheath is present in PNS and CNS
Which statement regarding neurons is true
Nissl bodies are found in perikaryon and dendrites
Most neurons have only one dendrite
Neurons are metabolic inactive cells
Multipolar has many axons and one dendrite
Its composed of perikaryon and processes
Contain euchromatic nucleus
Which statement regarding ganglia is true
Are composed of nerve fibers only
Consists of only ganglion cells
Are composed of both- perukaryons and nerve fibers
Are divided into sensory or autonomic ganglia
Which statement regarding nerve tissue is true
Dendrites contain Nissl bodies
Sensory neurons conduct impulse to CNS
Synapses are structures responsible for the transmission of nerve impulses from one neuron to the other
Nissle bodies are present in perikaryon and dendrites
Nodes of ranvier are interruptions occuring in the myelin sheats at regular intervals along the length of the axons
Nervous tissue is vascularized
Ependymocytes are present in ganglia
Neuronal signals are conducted faster in electrical synapses than in chemical
Pseudounipolar neurons can be found in the olfactory epithelium
Sensory neurons are efferent
Motor neurons are efferent
Which statement regarding glial cells is true
Protoplasmic astrocytes are present in the gray matter of the CNS
Schwann cells form myelinated and unmyelinated coverings over axons of the PNS
Their function is the metabolic and mechanical support and protection of neuron
Ependymal cells can be ciliated in some regions
Microglial cells are macrophages of CNS
Astrocytes regulate neuronal activity and metabolism
Ependymal cells are macrophages of CNS
Microglial cells derive from precursor cells in the bone marrow
Protoplasmic astrocytes are present in the white matter of the CNS
Astrocytes belong to mononuclear phagocytic system
Astrocytes form pedicles
Astrocytes form pia-glial membrane
Oligodendrocytes are myelin- forming cells in CNS
Which statement regarding neurons is true
Nissl bodies are found in perikaryon and dendrites
Most neurons are metabolic inactive cells
Multipolar has many axons and one dendrite
Neurons are metabolic inactive cells
Its composed of perikaryon and processes
Contain euromatic nucleus
Which statement regarding ganglia is true
Are divided into sensory or an autonomic ganglia
Sensory ganglia are surrounded by connective tissue capsule
Are composed of both perikaryons and nerve fibers
Consists only of ganglion cells
Multipolar neurons are present in autonomic ganglia
Are surrounded by endoneurium
Are somposed of nerve fibers only
Which statement regarding unmyelinated axons is true
Schwann cells envelop multiple axons
Oligodendrocytes envelop axons in PNS
Nodes of Ranvier are commonly visible alon unmyelinated nerve fibers
Myelin sheath wraps each axons
Schwann cells envelop just one axon
Nodes of Ranvier are not seen along unmyelinated nerve fibers
Which statement regarding epineurium is true
Surrounds the whole nerve
Sotains the blood vessels
Is dense, irregular fibrous connective tissue
Surrounds one fascicle of nerve fibers
Is covering the CNS
Is covering axons and schwann cells
Have a rich network of reticular fibers
Surrounds single nerve fibers
Is covering the cerebellum
Directly surrounds the external laminae of the schwann cells
Is loose connective tissue
Which connection: cells- place of presence
Satellite cells- ganglia
Oligodendrocytes- central nervous system
Ependymocytes- central canal
Microglial- central nervous system
Oligodendrocytes- peripheral nervous system
Which statement regarding lemmocytes is true
Are present in the PNS
Form unmyelinated fibers in PNS
Sheath composed of lemmocytes will always form myelin around the axons
Are responsible for myelination in the PNS
Are responsible for myelination in the CNS
In CNS axons are sheathed by lemmocytes
Small nerves dont have lemmocytes
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