What is a dendrite? (1 point)
Responses
It is a cell that sends signals to the body to move.
It is a cell that sends signals to the body to move.
It is the part of a neuron that carries information to the cell body.
It is the part of a neuron that carries information to the cell body.
It is a cell that sends signals to the central nervous system based on sensory input.
It is a cell that sends signals to the central nervous system based on sensory input.
It is the part of the neuron that carries information away from the cell body.
It is the part of the neuron that carries information away from the cell body.
What is the term for changes in the internal or external environment that cause a response? (1 point)
Responses
stimuli
stimuli
nerves
nerves
messages
messages
signals
stimuli
How do signals from sensory neurons reach motor neurons?(1 point)
Responses
Motor neurons signal for the body to move the signal toward them
Motor neurons signal for the body to move the signal toward them
Signals from sensory neurons do not get sent to motor neurons
Signals from sensory neurons do not get sent to motor neurons
Through interneurons in the brain and spinal cord that connect sensory neurons and motor neurons
Through interneurons in the brain and spinal cord that connect sensory neurons and motor neurons
Signals move from dendrite to dendrite towards motor neurons
Signals move from dendrite to dendrite towards motor neurons
Through interneurons in the brain and spinal cord that connect sensory neurons and motor neurons
What part of the nervous system is completely protected by bone? (1 point)
Responses
central nervous system
central nervous system
peripheral nervous system
peripheral nervous system
interneurons
interneurons
sensory neuron
central nervous system
You see a mosquito land on your hand and swat at it. A signal passes through many parts of different neurons to make this happen. Which component of the nervous system is the last to be involved in this process? (1 point)
Responses
dendrites in motor neurons
dendrites in motor neurons
axons in motor neurons
axons in motor neurons
dendrites in sensory neurons
dendrites in sensory neurons
axons in sensory neurons
axons in motor neurons
The correct answer is:
It is the part of a neuron that carries information to the cell body.
To get to this answer, let's break down the options:
1. "It is a cell that sends signals to the body to move." - This option is incorrect because dendrites are not cells themselves. They are part of a neuron, which is a specialized cell.
2. "It is the part of a neuron that carries information to the cell body." - This is the correct answer. Dendrites are the branch-like structures that extend from the cell body of a neuron and receive signals or information from other neurons or sensory receptors. They transmit this information to the cell body.
3. "It is a cell that sends signals to the central nervous system based on sensory input." - This option is incorrect because dendrites do not send signals to the central nervous system independently. They receive signals from other neurons or sensory receptors and transmit them to the cell body.
4. "It is the part of the neuron that carries information away from the cell body." - This option is incorrect. Dendrites carry information towards the cell body, not away from it.