Parts:
What are the three types that neurons?
sensory, inter, and motor neuron
What is the primary function of a neuron?
To receive, transmit, and process electrical signals in the nervous system
What does "inter" mean?
Between or among
Where are most neurons concentrated?
In the brain and spinal cord
How many neurons does the brain contain?!
100 billion
What are the five components of a neuron?
Cell body (soma), dendrites, axon, axon terminal and myelin sheath. (Acceptable Answer - Nucleus)
What is the role of myelin in the nervous system?
To insulate axons and speed up the transmission of electrical signals.
What is another name for motor neurons?
Efferent neurons.
Where is the center of information processing?
The brain.
What structure contains the cytoplasm and the nucleus?
What is the cell body?
Which part of a neuron receives signals from other neurons?
Dendrites.
What is the purpose of sensory neurons?
To transmit sensory information from the sensory organs to the central nervous system.
What is the other name for sensory neurons?
Afferent neurons.
What are nerves that branch off and extend into all other parts of the body called?
Peripheral nervous system.
How do neurons signal?
Transmits electrical impulses.
What is called the long, thin fiber that sends electrical impulses away from the neuron cell body?
Axon
What is the purpose of motor neurons?
To carry action messages from the central nervous system to the location in the body.
Where do you find motor neurons?
Peripheral Nervous System.
What is known as the central processing center of the nervous system?
The brain
What speeds transmission of the electrical signals along the axon?
Myelin sheath.
What is the tiny gap between two neurons where signals are transmitted called?
Synapse
Neurons are information_______?
messengers
What is the function of Interneurons?
Act as relays within the central nervous system, connecting sensory and motor neurons.
What is the basic functional unit of the brain?
Neurons.
What does the nucleus do in a neuron?
It maintains and repairs the neuron.