Parts of the Nervous System
These are the two primary divisions of the nervous system.
What is the central nervous system and peripheral nervous system?
The three parts of a neuron.
What are the soma (cell body), axon, and dendrites?
The four lobes of the brain.
What are frontal, parietal, temporal, and occipital?
The division of the peripheral nervous system that we can directly control.
What is the somatic nervous system?
This is the photoreceptor in the retina that allows for focused and color vision.
What is a cone?
What is a neuron?
This part of the neuron sends a signal to a neighboring neuron through release of a neurotransmitter.
What is the axon?
This part of the brain is the relay system for our senses to the rest of the brain (except olfaction).
What is the thalamus?
The somatosensory cortex is located in this lobe of the brain.
What is the parietal lobe?
The name of the nerve that sends signals received by the retina to the brain.
What is the optic nerve?
The two primary parts of the central nervous system.
What are the brain and spinal cord?
The part of the neuron that can have more than one on a given cell.
What are dendrites?
This part of the brain is responsible for our vitals, like heart-rate.
What is the medulla?
The autonomic nervous is further divided into these two categories.
What are the sympathetic and parasympathetic nervous systems?
This is the part of the eye that does a majority of the focusing of light.
What is the cornea?
This is the point where two neurons meet for communication.
What is a synapse?
If the signals a neuron receives add up to a certain threshold, this is triggered to relay that signal.
What is an action potential?
The part of the brain responsible for coordinating movement.
What is the cerebellum?
The two parts of the body that we discussed that have the largest density of sensory neurons and the most cortex space in the brain.
What are the tongue and the fingertips?
These are the five categories of taste, based on types of receptors/channels on the tongue.
What are sweet, salty, bitter, sour, and umami?
This is the type of communication that occurs between two neurons, and the general term for the substance used for communication.
What is chemical communication using neurotransmitters?
What is electrical communication?
The part of the brain responsible for sleep and consciousness.
What is the pons?
This is the only type of sensory-motor response that is not communicated through or by the brain.
What is a reflex?
This is the location of our olfactory receptors.
What is the nasal epithelium?