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Can a first order sensory neuron sometimes be a sensory receptor?
The first order sensory neuron can sometimes be a sensory receptor because it is what sends the signal to the brain from the receptor. The second order goes from the brainstem to the thalamus.
What are the first and last elements in a spinal reflex?
The first element in a spinal reflex is the sensory receptor, which detects a stimulus. The last element is the effector, which carries out a response to the stimulus.
Incoming messages are first detected by what part of a neuron?
Incoming messages are first detected by the dendrites of a neuron, which receive signals from other neurons or sensory receptors.
What is the minimum number of neurons required to carry information from a sensory receptor to the somatosensory cortex?
At least three neurons are required to carry information from a sensory receptor to the somatosensory cortex. The first neuron is located in the sensory receptor, the second neuron is in the spinal cord or brainstem, and the third neuron is in the thalamus before reaching the somatosensory cortex.
When you touch something hot, a neuron in your finger senses the temperature. Which happens first?
an action potential moves along the neuron
When you touch a warm plate of food being handed around the dinner table the first type of neuron to be activated is?
Sensory.
Does the dendrite come first or does the axon come first?
In developing neurons, dendrites typically begin forming first before the axon. Dendrites receive signals from other neurons and help integrate this information, while the axon transmits signals away from the neuron to other cells.
What is an example of sensory neurons?
An example of afferent neuron would be using a sense. In this case we will choose touch or feel. EX: Your Hammering the door and suddenly u smash a finger. First it started with a smash then that feeling passes through your sensory nerves which pass through your whole body ending at the brain which makes u feel pain. That is an afferent neuron experience.
Describe the path an impulse would take for a reflex reaction?
When a sensory receptor detects a stimulus, an impulse is transmitted via a sensory neuron to the spinal cord. In the spinal cord, the impulse is processed and a response is generated, which is then sent via a motor neuron to the effector (muscle or gland) to carry out the reflex reaction. This entire pathway occurs rapidly and automatically without involvement of the brain.
Cell body for first order neuron located here?
The cell body of the first-order neuron is typically located in the dorsal root ganglion (also known as the spinal or sensory ganglion) of the spinal cord. From there, it sends signals to the spinal cord or directly to the brain, depending on the type of sensory information it is transmitting.
What part of neuron that receive a signals from other neurons?
Yes. They interact with each other via chemical "signals" called neurotransmitters and neuropeptides. In this way, a neuron sends an excitatory (stimulating) or inhibitory (destimulating) signal to another neuron to cause it to generate a nerve impulse or prevent it from generating one, respectively.
What is the sequence of events in a typical reflex arc?
receptor detects a stimulus - change in the environmentsensory neurone sends signal to relay neuronemotor neurone sends signal to effectoreffector produces a response
