Histology 2B

A detailed illustration of nervous tissue, showing neurons, glial cells, and synapses with vibrant colors and labels

Histology 2B Quiz

Test your knowledge of histology with our comprehensive quiz focused on nervous tissue and its components! This quiz covers a wide range of topics, including neurons, glial cells, and ganglia. Perfect for students and educators alike!

Multiple-choice questions
In-depth understanding of histology
Ideal for exam preparation or self-assessment

37 Questions9 MinutesCreated by LearningNeuron101

What is true regarding interneurons?

Are associated with neurons

Creates the minority of neurons in the human CNS

Can connect motor neurons with sensory neurons

Can be multipolar or anaxonic neurons

Compromise ≈ 99% of all neurons in adults

What is true regarding nervous tissue?

Nervous tissue is vascularized

Perikaryons is the central portion of the nerve cell where the nucleus and perinuclear cytoplasm is located

Sensory neurons are sending impulses to effector organs or tissues

Sensory neurons are afferent

Motor neurons are sending impulses to effector organs and tissues

What is true regarding lemmocytes?

Form myelinated fibers and unmyelinated fibers in the PNS

Are also referred to as Schwann cells

Are present in the PNS

Are responsible for myelination in the CNS

What is true regarding neurons?

Multipolar neurons have many axons and one dendrite

Pseudounipolar neurons can be found in the spinal cord

Nissl bodies are found in the perikaryon and in dendrites

Is metabolically active cells

What is true regarding unmyelinated axons?

Myelin sheath wraps each axon

Schwann cells envelops just one axon

Schwann cells envelop multiple axons

Nodes of Ranvier are commonly visible along unmyelinated axons

Connection: cells - place of presence

Satellite cells - CNS

Ependymocytes - Central canal

Oligodendrocytes - CNS

Astrocytes - PNS

What is true about the epineurium?

Surrounds the whole nerve

Directly surrounds the external lamina of the schwann cell

Contains blood vessels

Surrounds one fascicle of nerve fibers

Is a dense connective tissue

What is true regarding the nervous tissue?

Dendrites contains Nissl bodies

Sensory neurons conduct nerve impulses to the CNS

Synapses are structures responsible for the transmission of nerve impulses from one neuron to the other

Nervous tissue is highly vascularized

Neuronal signals are conducted faster in electrical synapses than in chemical synapses

Pseudounipolar neurons can be found in the olfactory epithelium

Glial cells:

Protoplasmic astrocytes are present in the gray matter of the CNS

Schwann cells form myelinated and unmyelinated coverings of axons in 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 the mononuclear phagocytic system

Astrocytes form pedicles; vascular feet

What is true regarding neurons?

Nissl bodies are found in perikaryon and dendrites

Most neurons have only one dendrite

Neurons are metabolically inactive

Multipolar neurons have many axons and one dendrite

What is true regarding ganglia?

Are divided into sensory and autonomic ganglia in the PNS

Sensory ganglia is surrounded by a connective tissue capsule

Are composed of both perikaryons and nerve fibers

Consists only of ganglion cells

Multipolar neurons are present in the autonomic ganglia

Are surrounded by endoneurium

Are composed only of nerve fibers

Unmyelinated axons:

Schwann cells envelop multiple axons

Oligodendrocytes envelop axons of the PNS

Nodes of Ranvier are commonly visible along unmyelinated nerve fibers

Myelin sheath wraps each axon

Schwann cells envelop just one axon

What is true regarding the epineurium?

Connection: cells - place of presence

What is true regarding interneurons?

Can connect motor neurons with sensory neurons

Can be multipolar neurons

Creates the majority of neurons in the human CNS

Are sensory

Their axons are always myelinated

Creates the minority of neurons in the human CNS

Neurons:

Multipolar neurons consists of the perikaryon, dendrites and axons

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 neurons have many dendrites and one axon

Neurons:

Consists of perikaryon and processes

Contains euchromatic nucleus

Neuron bodies can be found in gray matter

Neuron bodies are abundant in white matter

Is metabolic active

Multipolar consists of perikaryon, dendrites and axons

Neurons:

Bipolar neurons have only one dendrite

The majority of neurons in the body are multipolar

Bipolar neurons are found in the retina

Purkinje cells are found in the cerebral cortex

Pyramidal cells are found in the cerebral cortex

Pseudounipolar neurons are found in the spinal ganglia

Find true; glial cells and neurons

Microglia gan phagocytose foreign substances

Astrocytes are part of the blood-brain-barrier

Perikaryon could contain lipofuscin X

Myelin sheaths in the CNS are produced by oligodendrocytes

Perineurium is a dense connective tissue which surrounds a fascicle of nerve fibers

Epineurium is an external fibrous coat of nerves

What is true regarding the nerve tissue?

Sensory ganglion consists of both perikaryon and nerve fibers

Pseudounipolar neurons are located within the sensory ganglion

Sensory ganglion is located outside of the spinal cord

Motor neurons are afferent

Sensory neurons are afferent

Bipolar neurons can be found in the olfactory epithelium

Ependymal cells line the central canal and ventricles of the brain

Nerve tissue is vascularized

Oligodendrocytes:

Can be found in the autonomic ganglion

Are myelin producing cells of the CNS

Are elements of the neuroglia

Exists mostly in the white matter of CNS

Present in the spinal cord and cerebrum

Produce myelin sheath

Bipolar cells of retina:

Represent the second neuron of the optic way

Connects rod and cones to ganglion cells

Located in the inner nuclear layer

Peripheral nerves:

The nerve fibers are grouped in bundles

Are composed of numerous nerve fibers

Have the external fibrous coat

Each nerve fiber is surrounded by endoneurium

Each bundle is surrounded by epineurium

Sensory ganglia:

The connective tissue capsule envelops the ganglia

They contain pseudounipolar neuron bodies surrounded by satellite cells

Are part of the PNS

Perikaryons of neurons are not present in sensory ganglia

Satellite cells surround the neuronal cell bodies

Does not contain satellite cells

Nissl bodies:

Are found in dendrites

Are composed of SER and polyribosomes

Participate in the synthesis of proteins

Are a type of inclusion

Dendrites:

Become thinner as they subdivide

Most neurons have many dendrites

Is usually shorter processes than axons

Is specialized in conduction impulses from other cells to the perikaryon

Most neurons only have one dendrite

The cytoplasmic composition is similar to that of the perikaryon

Dendrites:

Bipolar neurons have only one dendrite and one axon

Multipolar neurons have many dendrites and one axon

Dendrites and perikaryons contain Nissl substance

Contains Nissl bodies

Receive many synapses

Usually does not subdivide into branches

Myelin sheath:

Contains 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 both the PNS and the CNS

What is true regarding neurons?

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

Is composed of perikaryon and processes

Contains euchromatic nucleus

What is true about ganglia?

Are composed of nerve fibers only

Consists only of ganglion cells

Are composed of perikaryons and nerve fibers

Are divided into sensory and autonomic ganglia

What is true regarding nerve tissue?

Nodes of Ranvier are interruptions occuring in the myelin sheath at regular intervals along the axon

Ependymocytes are present in the 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

What is true regarding glial cells?

Protoplasmic astrocytes are present in the gray matter of the CNS

Ependymal cells can be ciliated in some regions

Astrocytes regulate neuronal activity and metabolism

Ependymal cells are macrophages of the CNS

Microglial cells derive from precursors of the bone marrow

Astrocytes form pedicles

Astrocytes form the pia-glial membrane

Oligodendrocytes form myelin in the CNS

Connection: cells - place of presence

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Histology 2B

Histology 2B Quiz

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