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A physical stimulus is transformed into a neural stimulus when the sensation is received by the sensory nerves. For example, the pain of right cross punch is felt when the nerves at the impact site fire.
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The process of changing physical stimulus to neural stimulus is called what?
Transduction is the process of changing physical stimulus to natural stimulus. This causes receptor cells to produce an electrical change in response.
What are the categorys of endocrine gland stimulus?
hormonal, humeral, and neural.
What is the relationship between a physical stimulus and the kinds of sensory responses that result from it?
There are five main senses that people experience: sight, smell, taste, touch, and hearing. Each sense is associated with different physical stimuli. For example, the sense of sight is associated with light waves, the sense of smell is associated with volatile molecules, the sense of taste is associated with dissolved molecules, the sense of touch is associated with pressure or temperature changes, and the sense of hearing is associated with sound waves. The relationship between a physical stimulus and the resulting sensory response is that the physical stimulus is converted into a neural signal by the sense organ, and then this neural signal is interpreted by the brain to produce the sensory response. The specific response depends on which sense is involved and what the physical stimulus is.
What is the organisms actions as a result of sensory neural and hormonal factors in response to changes in the external or internal conditions?
Stimulus
Individual muscle fibers can contract more or less forcefully depending on the strength of the neural stimulus?
Yes, they can.
What is the organism's actions as a result of sensory neural and hormonal factors in response to changes in external or internal conditions?
Stimulus
How can you tell if bumps on the oscilloscope trace are due to the stimulus artifact or are part of a compound action potential?
The stimulus artifact is biphasic and roughly symmetrical. If you reverse the polarity of the stimulus you will see no or little change in the stimulus artifact but should see a decrease or absence of the neural response. The rate of change in a stimulus artifact is generally an order of magnitude faster than most neural responses so that filtering will disproportionally affect it. Always set your stimulus to lowest strength needed to elicit a response before reversing polarity. If you are on the wrong polarity this has the risk of killing your preparation.
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 physical stimulus for vision?
light waves
Out of the four types of neural circuits diverging converging reverberating and parallel after-discharge which is likely to fire the longest after a stimulus ceases?
Reverberating.
Transduction is the process of converting physical stimuli into?
Neural impulses
Given that action potentials traveling down the axon of a particular neuron are always the same amplitude how is a stronger stimulus communicated to the next cell in the neural pathway?
The strength of a stimulus is coded in the frequency of action potentials, not in the amplitude.
