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 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 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 the part of the neuron that carries information away from the cell body.
It is the part of the neuron that carries information to the cell body.
What is the term for changes in the internal or external environment that cause a response? (1 point)
Responses
messages
messages
nerves
nerves
signals
signals
stimuli
stimuli
How do signals from sensory neurons reach motor neurons?(1 point)
Responses
Signals move from dendrite to dendrite towards motor neurons
Signals move from dendrite to dendrite towards motor neurons
Motor neurons signal for the body to move the signal toward them
Motor neurons signal for the body to move the signal toward them
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 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
What part of the nervous system is completely protected by bone? (1 point)
Responses
sensory neurons
sensory neurons
interneurons
interneurons
central nervous system
central nervous system
peripheral nervous system
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
axons in motor neurons
axons in motor neurons
dendrites in motor neurons
dendrites in motor neurons
axons in sensory neurons
axons in sensory neurons
dendrites 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 arrive at this answer, let's break down the question and the available responses:
Question: What is a dendrite?
Definition of a dendrite: A dendrite is a part of a neuron, which is a specialized cell in the nervous system that transmits information. Neurotransmitters released from other neurons stimulate dendrites, allowing them to receive and carry electrical signals to the cell body.
Responses:
1. It is a cell that sends signals to the body to move. - This response is incorrect because dendrites are not cells, but rather parts of neurons.
2. It is a cell that sends signals to the body to move. - This response is incorrect for the same reason as the previous one.
3. It is a cell that sends signals to the central nervous system based on sensory input. - This response is incorrect because dendrites carry signals towards the cell body, not away from it, as stated in the question.
4. It is a cell that sends signals to the central nervous system based on sensory input. - This response is incorrect for the same reason as the previous one.
5. It is the part of a neuron that carries information to the cell body. - This response is correct because dendrites receive signals from other neurons and transmit them towards the cell body.
6. It is the part of a neuron that carries information to the cell body. - This response is correct for the same reason as the previous one.
7. It is the part of the neuron that carries information away from the cell body. - This response is incorrect because, as mentioned earlier, dendrites carry information towards the cell body.
Therefore, the correct answer is: "It is the part of a neuron that carries information to the cell body."