Neurons 101
What are neurons?
nerve cells
What are the two systems make up the nervous system?
Central Nervous System (CNS) and Peripheral Nervous System (PNS)
How many different types of neurons are there?
3
T/F: The axon is the first part of the neuron to receive an impluse from a neighboring neuron.
false, the dendrites do
What acts as the highway on which neurons travel to and from the brain?
spinal cord
Name the part of a neuron that grows when you make new connections (what part receoved the message)?
Dendrites
The entire nervous system is made up of?
brain, spinal cord, neurons
What neuron transmits signals fronm sense organs to the spinal cord or brain?
sensory neurons
T/F: The impluse travels from the soma to the axon.
true
Motor neurons which are responsible for movement are also called...
efferent neurons
What is the empty space between neurons called?
synapse
Which part of a neuron resembles branches and is the first to receive messages?
Dendrites
What neuron transmits signals between sensory and motor neurons?
interneurons
T/F: The myelin sheath breaks down the impulse before slowly transmitting along the axon.
false, it doesn't decipher the message (nucleus) and it speeds up the transmission.
Benson touches a hot plate, what type of neuron is the first one to receive the message (impulse)?
sensory neuron
What is the LONGEST part in a neuron?
the axon
What part of the neuron houses the nucleus?
the soma
What neuron transmits signals from you CNS to your muscles, organs, and glands?
motor neurons
What chemicals are released once the impulse reaches the axon terminals?
neurotransmitters
How does information from a sensory neuron get passed along to a motor neuron?
sensory neuron to interneurons to motor neurons
What are ALL of the parts in a neuron?
dendrites, soma, nucleus, axon, myelin sheath, axon terminal
What does the myelin sheath do?
Fatty tissue that supports the axon and speeds up the transmission of the message.
T/F: Sensory neurons travel from the brain to the body where as motor neurons travel from the body to the brain.
false
From the end of the neuron, neurotransmitters travel to a neighboring neuron over empty space called what?
the synapse
What is the science of your brain called?
Neuroscience