Download File

Nervous System Review
Draw a neuron
Label the dendrite
What does the dendrite do?
• Receives signal from other neurons and send
that signal to the cell body (soma)
Label the soma nucleus.
What is the soma?
•
•
•
•
Axon?
Terminal?
Cell body?
Dendrite?
Label the Schwann Cell.
What do the Schwann Cells make?
•
•
•
•
Axon?
Dendrites?
Neurons?
Myelin Sheath?
Circle the cell body
Where does the cell body receive
signals from?
• Axon?
• Dendrites?
• Synapses?
Draw an arrow that points to the
structure that carries signals away
from the soma.
What is the name of the structure that
carries impulses away from the soma?
Answer: Axon
Label the nodes of Ranvier
Label the axon terminal
The ends of the axon terminal are
called ___________ or ___________.
Answer: Buttons or knobs
The space between an axon terminal and
another dendrite is called?
Answer: Synapse
Axon Terminal
• The axon terminal ending is called a knob or
button
• These knobs contain vesicles that contain
neurotransmitters
• Neurotransmitters are chemical messengers
that send information across the synapse to
another neuron
What structure carries signals to the soma?
Answer: dendrites
What structure carries signals away from the
soma?
Answer: axon
Motor neurons and sensory neurons are part of
which system?
CNS?
PNS?
Both?
Explain what happens with an impulse when you
stub your toe. Explain how the impulse travels to
and from the brain. include the words below.
•
•
•
•
•
Motor neuron
Sensory neuron
CNS
PNS
Brain
• When you stub your toe, sensory neurons will send a signal up the sensory
nerves of the PNS to the CNS. The interneurons of the CNS in the brain will
send the response to the motor nerves so that the motor neurons will
initiate a response in your foot.
A nerve is made up of many
___________
•
•
•
•
Fibers
Cells
Neurons
signals
What neuron carries impulses
between the sensory and motor
neurons?
•
•
•
•
Middle neurons
Interneurons
Somatic neurons
Autonomic neurons
The most basic unit of the nervous
system is a ____________
Answer: neuron
The neuron that receives information
from stimuli is the ________________
• Motor neuron
• Interneuron
• Sensory neuron
The neuron that initiates the body to
respond is the ______________
• Motor neuron
• Sensory neuron
• interneuron
A signal that travels through a nerve is
also called a(n)...?
•
•
•
•
Hormone
Axon
Impulse
response