In studying nerve physiology, I would use electrical stimuli to investigate the excitability and conduction properties of neurons. This allows for precise control over the timing and intensity of the stimulus, enabling the observation of action potential generation and propagation. Additionally, chemical stimuli, such as neurotransmitters, can be employed to explore synaptic transmission and modulation of nerve activity. Together, these approaches provide a comprehensive understanding of neural responses under various conditions.
electrical
tough one to answer really, as all three will give you different nerve conduction velocitys to a stimulus. the unmyelinated rat nerve will obviously be the least conductive, the frog nerve more conductive than that and the myelinated rat nerve more conductive again. But in general, tha main consensus would use a frog nerve, as the frog has been the choice of many a physiology lab for who knows how long.
The stimulus that you would use to study nerve physiology would be internal and external stimulus to the body. The study of the nervous system would help in analyzing the human anatomy.
ELectrical
Hoffman's sign in physiology is a sign of nerve regeneration triggered by a stimulus of the distal part of an injured nerve.
For my class, We used to use electrical shock (Voltage) as a stimulus. However, there are some other types as well, such as mechanical (glass rod), or thermal stimulation (heat a glass bar).
To study the physiology of nerve fibers, you would need to isolate a specific muscle and the nerve innervating that muscle. This allows for the investigation of the interaction between the nerve and muscle, observing the transmission of signals and studying the response of the muscle to nerve stimulation. Commonly studied muscles and nerves in this context include the gastrocnemius muscle and the sciatic nerve in animal models.
You would likely use electrical stimulation because it provides precise control over the timing, intensity, and duration of the stimulus. This would allow you to study the response of nerves in a controlled and reproducible manner, helping you to better understand their physiology and function.
A sensory Neuron picks up the stimulus from the environment and changes it into a nerve impulse.
Signals to which the body reacts.
Burdon-Sanderson has written: 'Memoirs on the physiology of nerve, of muscle and of the electrical organ' -- subject(s): Accessible book, Nerves, Electrophysiology, Muscles 'Handbook for the physiological laboratories' -- subject(s): Accessible book, Laboratory manuals, Physiology
Yes, a stimulus needs to reach a certain threshold level of strength in order to generate a nerve impulse. This threshold is required to depolarize the cell membrane and initiate the action potential. If the stimulus is not strong enough to reach this threshold, no nerve impulse will be generated.