Anatomy of the Nervous System Quiz

Neurons comprise two types of processes: axons and dendrites. What is the major difference between the two? Choose the correct option

• Dendrites are of uniform diameter throughout while axons taper to a point.

• Dendrites receive incoming signals from other neurons while axons carry the output of the neurons.

• A cell body gives rise to a single dendrite and multiple axons.

• Dendrites travel long distances while axons taper to a point.

What is the site where the axon begins?

• Axon collateral

• Axon terminal

• Axon hillock

• Soma

Which of the following is not a neuron-neuron synapse?

• Axo-somatic synapse

• Axo-axonic synapse

• Neuromuscular junction

• Dendro-dendritic synapse

What is the part of the neuron which primarily receives signals?

• Dendrite

• cell body

• Axon

• Myelin

A sensory neuron located in the hand would be considered a:

• Peripheral efferent neuron

• Central efferent neuron

• Peripheral afferent neuron

• Central afferent neuron

What cell in the brain is capable of phagocytoisis as part of immune function?

• Schwann Cells

• Oligodendrocytes

• Microglia

• Macroglia

All of these are functions of glia cells EXCEPT:

• Promoting neuron survival

• Synthesizing myelin

• Synthesizing neurotransmitters

• Maintaining a proper ionic environment

Rapid heart-rate, sweating, dilated pupils, and faster breathing indicate activation of this nervous system branch:

• Parasympathetic nervous system

• Peripheral nervous system

• Sympathetic nervous system

• Somatic nervous system

What is the primary function of the myelin sheath?

• To speed up the transmission of electrical signals

• To provide nutrients to the neuron

• To protect the neuron from damage

• To facilitate synaptic transmission

Which part of the neuron is primarily involved in transmitting signals away from the cell body?

• Axon

• Synapse

• Dendrite

• Soma