30 Questions
What type of neurons are found in sensory organs like the ears and eyes?
Bipolar neurons
What is the primary function of unipolar neurons?
To transmit sensory information
What is the main role of neuroglial cells in the nervous system?
To support and protect nerve cells
What type of neuroglial cells are star-shaped and provide insulation to neural tissues?
Astrocytes
What is the primary function of microglia in the central nervous system?
To eliminate debris and foreign substances
What is the term used to describe neuroglial cells?
Nerve glue
What is the main function of the axon?
To carry impulses away from the cell body
What is the role of the cell body in a neuron?
To contain the nucleus
What is the function of the neurons mentioned in statement 9?
To transmit signals from the PNS to the CNS
What is the term for the process of electrical signal processing in the brain and spinal cord?
Integration
What is the function of the cells mentioned in statement 5?
To support the neurons and protect them
What is the term for the gap between the axon terminals of one neuron and the dendrites of another neuron?
Synapse
What is the function of sensory neurons?
Carry impulses from sensory receptors to the CNS
What is the function of the somatic nervous system (SNS)?
Control the skeletal muscles
What is the function of the parasympathetic division of the autonomic nervous system?
Serve as the 'rest and digest' system
What is the term for clusters of neuronal cell bodies found outside the spinal cord?
Ganglia
What is the term for the division of the autonomic nervous system that serves as the 'fight or flight' system?
Sympathetic division
What is the term for the system that controls the smooth and cardiac muscles?
Autonomic nervous system
What is a characteristic of reflexes?
They are rapid and involuntary responses
Which division of the peripheral nervous system controls reflexes?
Somatic nervous system
What is the name of the neural pathways that reflexes occur over?
Reflex arcs
What is the main function of interneurons in a reflex arc?
To serve as a middleman between the two neurons
What is a common example of a reflex response?
Knee jerk
How many main components do most reflex arcs have?
5
What is the main purpose of grouping the peripheral nervous system into different divisions?
To recognize the differences in their functions despite working together
How do sensory and motor neurons communicate with each other?
Through chemical signals
Why do we experience headaches if the brain does not have pain receptors?
Because pain receptors are activated by other parts of the body
What causes numbness in our legs when we sit in the same position for a long time?
Pressure on the nerves in the legs
What is the primary function of sensory receptors in our body?
To perceive information from the environment
What is the reflex arc, and how does it work?
A automatic response to a stimulus, involving the brain and spinal cord
Test your knowledge of the different types of neurons, including bipolar and unipolar neurons, and their functions in the nervous system. Learn about their structures and roles in sensory organs and the peripheral nervous system.
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