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WorksheetsNervous System - Introduction
Total questions: 40
Worksheet time: 55mins
What are the two main parts of the nervous system?
Brain and spinal cord
Central nervous system and peripheral nervous system
Axons and dendrites
Neurons and glia
What is the central nervous system made up of?
Axons and glia
Brain and spinal cord
Neurons and hormones
Nerves and muscles
What does the peripheral nervous system consist of?
Neurons and glia
Axons and dendrites
Nerves branching off the spinal cord
Brain and spinal cord
What is the basic unit of the nervous system?
Axon
Glia
Dendrite
Neuron
Approximately how many neurons does the human brain contain?
1 billion
100 billion
50 million
10 million
What are the special extensions of a neuron called?
Nucleus and cell body
Synapse and neurotransmitters
Glia and myelin
Axons and dendrites
What is the function of motor neurons?
Transmit messages from the brain to muscles
Repair neurons
Detect light and sound
Regulate neurotransmitters
Which type of neurons detect light, sound, and other sensory inputs?
Glia cells
Sensory neurons
Axons
Motor neurons
What involuntary processes are controlled by the nervous system?
Muscle movement
Thinking and behavior
Heartbeat and hormone release
Detecting pressure and heat
What happens when a neuron sends a message to another neuron?
It releases glia cells into the synapse
It sends an electrical signal down the axon
It sends a chemical signal through the axon
It creates myelin for insulation
What is the space between the end of an axon and the tip of a dendrite called?
Synapse
Axon terminal
Myelin sheath
Neuron gap
What are neurotransmitters responsible for?
Detecting sensory inputs
Moving signals through the synapse
Creating myelin
Repairing neurons
What is the role of glia cells in the nervous system?
Support and protect neurons
Generate movement
Transmit electrical signals
Detect light and sound
What is myelin and what does it do?
A chemical signal released by axons
A type of neuron that detects sensory inputs
Insulation that helps move nerve impulses
A neurotransmitter that moves signals
Which function is performed by glia cells?
Trim out dead neurons
Generate movement
Transmit messages to muscles
Detect pressure and heat
What allows different parts of the brain to communicate and work together?
Myelin and hormones
Synapses and neurotransmitters
Networks of neurons and glia
Axons and dendrites
Which part of the nervous system controls the ability to move, breathe, and think?
Glia cells
Neurons
Central nervous system
Peripheral nervous system
What is the role of axons in neurons?
Regulate neurotransmitters
Support and protect neurons
Detect sensory inputs
Transmit electrical signals
What happens at the end of an axon during signal transmission?
Electrical signal changes to a chemical signal
Myelin is created
Neuron detects sensory inputs
Neuron releases glia cells
What is the role of dendrites in neurons?
Trim out dead neurons
Create myelin for insulation
Transmit messages to muscles
Convert chemical signals back into electrical signals
Which process is regulated by the nervous system?
Hormone creation
Neuron trimming
Muscle repair
Digestive system
What is the function of the synapse in signal transmission?
Protects neurons
Detects sensory inputs
Creates myelin for insulation
Allows neurotransmitters to move signals between neurons
What is the role of glia in neurotransmitter regulation?
Support neurons
Detect light and sound
Regulate neurotransmitters
Transmit electrical signals
What is the primary function of sensory neurons?
Create myelin for insulation
Support and protect neurons
Detect light, sound, and other sensory inputs
Transmit messages to muscles
What is the role of neurons in the brain?
Detect pressure and heat
Transmit messages to muscles
Create myelin for insulation
Communicate to control body functions and emotions
What happens when neurotransmitters move through the synapse?
Neurons are repaired
Glia cells are released
Signals are transmitted to neighboring dendrites
Myelin is created
What is the role of glia in neuron repair?
Help restore neuron function
Transmit electrical signals
Detect sensory inputs
Create myelin for insulation
What is the role of axons in signal transmission?
Support and protect neurons
Detect light and sound
Regulate neurotransmitters
Transmit electrical signals over long distances
What is the role of the brain in the nervous system?
Repairs neurons
Detects sensory inputs
Controls body functions, emotions, and thinking
Creates myelin for insulation
What is the function of glia in holding neurons in place?
Transmit electrical signals
Detect pressure and heat
Create myelin for insulation
Support neurons
How is a message delivered from the "sending" neuron to the "receiving" axon?
sympathetic nerves
hormones
medulla oblongata
neurotransmitters
The space between 2 neurons where where neurotransmitters transfer from one neuron to another.
axon
dendrites
axon terminals
synapse
Neurotransmitters
When a signal needs to get from one neuron to the other, it flows from the (a)
Messages travel through neurons via (a) messages and between neurons via (b) messages.
The (a) is composed of Schwann cells and increases the (b) of electrical impulses by functioning as an (c) that allows the impulses to jump between (d) of the myelin sheaths
