60 Questions
Which one of these is a structural division of the nervous system?
Central nervous system
Where are neurons located in the central nervous system?
Nuclei
What is the main function of the peripheral nervous system?
Senses the external and internal environment
What are the basic functions of the nervous system?
Sensation, integration, and response
Which one of these is a functional division of the nervous system?
Autonomic nervous system
What is the role of the central nervous system?
Processes and integrates signals
What are the components of the peripheral nervous system?
Ganglia and nerves
Which type of neuron carries commands from the brain and spinal cord to muscles and glands?
Motor neurons
Which type of neuron carries out integrative functions and facilitates communication between sensory and motor neurons?
Interneurons
Which type of glial cell insulates axons in the central nervous system (CNS)?
Oligodendrocytes
Which type of glial cell surrounds cell bodies of neurons and provides support to them in the peripheral nervous system (PNS)?
Satellite cells
Which type of axon is entirely covered by myelin?
Myelinated nerves
In which part of the nervous system can axons successfully regenerate after injury?
Peripheral nervous system (PNS)
What is the connection between a neuron and its target cell called?
Synapse
Which division of the nervous system is responsible for conscious perception and voluntary motor responses of skeletal muscles?
Somatic nervous system
Which division of the nervous system is responsible for involuntary control of cardiac muscle, smooth muscle, and glands everywhere in the body?
Autonomic nervous system
Which division of the nervous system is responsible for involuntary control of the smooth muscle and glands in the digestive system?
Enteric nervous system
Which type of neurons have only one process (axon and dendrite combined) emerging from the soma?
Unipolar neurons
Which type of neurons have two processes (one axon and one dendrite) emerging from the soma?
Bipolar neurons
Which type of neurons have multiple processes emerging from the soma?
Multipolar neurons
Which part of a neuron is responsible for generating electrical signals?
Axon
Which cells provide insulation for axons in the nervous system?
Schwann cells
What is the function of the myelin sheath?
To facilitate the transmission of electrical signals along the axon
What is saltatory conduction?
The transmission of electrical signals along the axon in myelinated axons
What is continuous conduction?
The transmission of electrical signals along the axon in unmyelinated axons
What are electrical synapses?
Physical connections between neurons formed through gap junctions
Where are electrical synapses found?
Throughout the nervous system and between excitable cells other than neurons
What are chemical synapses?
Chemical connections between neurons formed through gap junctions
What happens when the action potential reaches the synaptic end bulb in a chemical synapse?
The neurotransmitter is released into the synaptic cleft
What is the main difference between the endocrine system and the nervous system?
The endocrine system transmits chemical signals, while the nervous system transmits electrical impulses
True or false: The nervous system can be divided structurally into central and peripheral nervous systems?
True
True or false: The central nervous system is composed of the brain and spinal cord?
True
True or false: The peripheral nervous system senses the external and internal environment and carries out the response from the central nervous system?
True
True or false: Neurons in the central nervous system are located in nuclei?
True
True or false: Neurons in the peripheral nervous system are located in ganglia?
True
True or false: Tracts are the projections of neurons within the peripheral nervous system?
False
True or false: The basic functions of the nervous system are sensation, integration, and response?
True
True or false: Glial cells are responsible for the electrical signals that communicate information about sensations?
False
True or false: Neurons have the ability to divide and form new cells?
False
True or false: Unipolar neurons have multiple processes emerging from the soma?
False
True or false: The axon is the process of a neuron that carries the information from the soma?
True
True or false: Bipolar neurons are found in ganglia?
False
True or false: Multipolar neurons have only one process (axon and dendrite combined) emerging from the soma?
False
True or false: The somatic nervous system is responsible for involuntary control of cardiac muscle, smooth muscle, and glands everywhere in the body?
False
True or false: Neurons can be classified based on where they are found, who found them, what they do, or the chemicals they use to communicate with each other.
True
True or false: Sensory neurons receive sensory information directly from the stimulus itself.
True
True or false: Interneurons facilitate communication between sensory and motor neurons.
True
True or false: Motor neurons carry commands from the brain and spinal cord to muscles and glands.
True
True or false: Glial cells are more numerous than neurons.
True
True or false: Oligodendrocytes insulate axons in the peripheral nervous system (PNS).
False
True or false: Axons in the central nervous system (CNS) are able to grow back to their original target after injury.
False
True or false: Myelinated axons conduct electrical impulses faster than unmyelinated axons.
True
True or false: Gap junctions are involved in electrical synapses.
True
True or false: Chemical synapses involve direct contact between neurons.
False
True or false: Neurotransmitters are released into the synaptic cleft in chemical synapses.
True
True or false: The endocrine system transmits signals through the bloodstream.
True
True or false: The nervous system can only affect cells it directly contacts.
True
True or false: The myelin sheath is made up of lipid-rich cells called oligodendrocytes.
False
True or false: Electrical synapses are found between neurons and other excitable cells.
True
True or false: The nervous system is responsible for both voluntary and involuntary control.
True
Discover the various classifications of neurons in this informative quiz. Explore different ways neurons can be classified based on their location, discovery, function, and communication methods. Challenge your knowledge and deepen your understanding of the fascinating world of neurons.
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