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The activation of a second messenger inside the receiving cell, the triggering of enzyme activity in the cell, and the change of permeability of the cell.
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∙ 15y ago
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Anything that excites or activates a nerve?
Stimulus
What is a simple neural receptor?
A receptor (protein) on a neuron that receives stimulus (light, pressure, chemical...etc). The stimulus generates a receptor potential (local disturbance/slight depolarization in membrane potential).
What is the difference between a stimulus impulse receptor and effector?
A Receptor is referring to a sense organ, like a nerve ending. An Effector is referring to a muscle capable of reflecting to a stimulus. By definition, receptor and effector are antonyms.
What happens at the level of the neuron starting with stimulus and ending with a response?
The stimulus is detected by the sensory receptor. The sensory receptor stimulates a sensory neuron. The sensory neuron transmits to the interneuron in the spinal cord. The interneuron stimulates a motor neuron. The motor neuron communicates to the muscle. The muscle(effector) then produces the response allowing the body to respond to the stimulus.
When the receptor have registered a the energy is converted to a electrochemical impulse?
stimulus
What happens for the perception of sensation to take place?
stimulus present, receptor activated, nerve impulse conduction
Anything that excites or activates a nerve?
Stimulus
Does brain have nerve?
The nervous system is made up of three parts: the receptor, the decider, and the effector. The receptor receives an stimulus and creates an electric impulse to be sent to the brain. The brain receives this impulse and decides what to do in order to react to the stimulus. Your brain then makes a decision and sends out an electric impulse to the effector which moves the muscle or activates a gland in your body which is a reaction to the stimulus.
A stimulus is detected and changed to an impulse by what?
receptor
What is the function of the cold receptor?
to detect stimulus
What is a simple neural receptor?
A receptor (protein) on a neuron that receives stimulus (light, pressure, chemical...etc). The stimulus generates a receptor potential (local disturbance/slight depolarization in membrane potential).
What structure receives a stimulus from the external environment and relays it to the sensory neuron?
The receptor!
What is the difference between a stimulus impulse receptor and effector?
A Receptor is referring to a sense organ, like a nerve ending. An Effector is referring to a muscle capable of reflecting to a stimulus. By definition, receptor and effector are antonyms.
What happens at the level of the neuron starting with stimulus and ending with a response?
The stimulus is detected by the sensory receptor. The sensory receptor stimulates a sensory neuron. The sensory neuron transmits to the interneuron in the spinal cord. The interneuron stimulates a motor neuron. The motor neuron communicates to the muscle. The muscle(effector) then produces the response allowing the body to respond to the stimulus.
Which of these activates an olfactory receptor and causes the transmission of information about a smell?
odorant
What is the first event associated with a reflex?
The receptor detects a stimulus.
When the receptor have registered a the energy is converted to a electrochemical impulse?
stimulus
