Mylination, C.T Coverings, Synapse, Ganglion, CNS Organization.

1 / 15

Which type of neuron is commonly found in sensory ganglia?

Pseudounipolar neurons

Bipolar neurons

Unipolar neurons

Multipolar neurons

2 / 15

What role do Schmidt-Lanterman incisures play?

They allow movement of cytoplasm for membrane maintenance

They release neurotransmitters

They generate electrical impulses

They create action potentials

3 / 15

What is the connective tissue layer that surrounds individual axons and Schwann cells?

Perineurium

Epineurium

Endoneurium

Myoneurium

4 / 15

What are the three major components of a synapse?

Myelin sheath, Schwann cell, synaptic vesicle

Presynaptic neuron, postsynaptic neuron, synaptic cleft

Axon, dendrite, neurotransmitter

Soma, synaptic cleft, astrocyte

5 / 15

What are the three classifications of myelinated nerves based on the thickness of myelin?

Non-myelinated, semi-myelinated, and fully myelinated nerves

Slow, medium, and fast myelinated nerves

Axonal, dendritic, and synaptic myelinated nerves

Lightly myelinated, moderately myelinated, heavily myelinated

6 / 15

What is the function of the perineurium in nerves?

To conduct nerve impulses

To form the blood-nerve barrier

To provide nutrients to neurons

To protect nerves from external trauma

7 / 15

Which part of the neuron is not covered by the myelin sheath?

Dendrites

Axon hillock

Node of Ranvier

Soma

8 / 15

What is the main function of autonomic nerves?

Store memories in the brain

Control voluntary muscle movement

Process sensory information

Regulate smooth muscle, gland secretion, and heart rate

9 / 15

What structure contains neurotransmitters in a synapse?

Synaptic vesicles

Postsynaptic membrane

Synaptic cleft

Perineurium

10 / 15

What structure forms the myelin sheath around nerve fibers?

Microglia

Oligodendrocytes

Schwann cells

Astrocytes

11 / 15

Where are sensory ganglia located?

In the ventral roots of spinal nerves

Near the motor cortex

In the central nervous system

In the dorsal roots of spinal nerves

12 / 15

What is the primary function of the myelin sheath?

To generate electrical signals

To produce neurotransmitters

To carry oxygen to neurons

To act as an insulator and maintain ionic microenvironment

13 / 15

What is a key characteristic of sympathetic autonomic ganglia?

They have a thick epineurium

Cells are multipolar and scattered

They only contain sensory neurons

Cells are surrounded by complete satellite cell capsules

14 / 15

What are the interruptions in the myelin sheath called?

Synaptic clefts

Schmidt-Lanterman incisures

Nodes of Ranvier

Axonal gaps

15 / 15

What is the outermost connective tissue covering of a peripheral nerve?

Epineurium

Perineurium

Myelin sheath

Endoneurium

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