12 Questions
What is the primary function of sensory neurons in the nervous system?
To transmit impulses received by receptors to the central nervous system.
What are the three basic functions of a neuron?
- Receive signals, 2. Integrate incoming signals, 3. Communicate signals to target cells.
Where are interneurons primarily found in the body?
In the brain, eyes, and spinal cord.
What is the role of dendrites in a neuron?
To receive and process incoming messages or signals.
What is the function of motor neurons in the nervous system?
To carry outgoing signals from the brain or spinal cord to muscles and glands.
What are the three main categories of neurons based on their function?
Sensory neurons, motor neurons, and interneurons.
What is the primary function of dendrites in a neuron?
To receive neural messages or signals from nearby neurons.
What is the difference between excitatory and inhibitory signals?
Excitatory signals tend to make the neuron fire, while inhibitory signals tend to keep the neuron from firing.
What happens when a neuron receives enough input electro-chemical signals?
The neuron gets ready to fire an impulse, depending on the sum of all the incoming excitatory and inhibitory signals.
What is the role of the axonal hillock in a neuron?
It collects and focuses the electro-chemical signals for entry into the axon.
What is the function of the axon in a neuron?
It transmits the incoming electro-chemical signals to other neurons, muscles, or glands.
What is the relationship between the axons of multiple neurons and a single neuron?
Axons from many neurons form synapses on the dendrites and cell body of a single neuron.
Learn about the basic structure and functions of neurons, the building blocks of the nervous system. This quiz covers the roles of neurons in receiving, integrating, and communicating signals to other cells.
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