Nervous Histology

What are the two main divisions of the nervous system?

• Somatic and Autonomic

• Central and Peripheral

• Sensory and Motor

• Sympathetic and Parasympathetic

Which connective tissue layer surrounds individual neuron cells and their accessories within a nerve?

• Epineurium

• Perineurium

• Endoneurium

• Fascicle

What part of a neuron collects electrical impulses from other cells?

• Axon

• Cell body

• Dendrites

• Axon terminal

What is the function of the myelin sheath around some axons?

• To provide structural support to the neuron

• To transmit neurotransmitters to other cells

• To collect electrical impulses from other cells

• To help transmit signals faster

Which type of nerve fiber transmits electrical impulses at the fastest speed?

• Type 1A fibers

• Type B fibers

• Type C fibers

• Unmyelinated fibers

Which type of neuron is characterized by having one axon and a cell body with many branching dendrites, and is commonly found in the brain and spinal cord?

• Bipolar neuron

• Unipolar neuron

• Multipolar neuron

• Pyramidal neuron

What is the primary function of oligodendrocytes in the nervous system?

• Regulating the blood-brain barrier

• Forming synapses

• Clearing excess neurotransmitters

• Making the myelin sheath around neurons in the brain and spinal cord

In the spinal cord, what is primarily composed of myelinated nerve fibers?

• Gray matter

• White matter

• Dorsal horn

• Lateral horn