A question about bioelectricity, which of the narratives about bioelectricity is wrong?

The magnetic effect of electric current does not require a changing magnetic field, and our right-hand spiral rule in junior high school is the conclusion of a stable magnetic field. There are two reasons why the experiment could not be successful: 1

The current is too small, the magnetic field generated is also small, and there are many things in the middle, so it cannot be measured. Moreover, the magnitude of the magnetic field it generates is not linear with the distance. 2.

The current in the organism should form a circulation, and the magnetic effects will cancel each other out, further reducing the magnetic force.

Wrong. First, a magnetic field can be generated without a changing electric field.

Second, the electric field in living organisms is changing.

Third, the currents are weak, and most of the local currents are multidirectional (like the neurological ones, the direction is multidirectional).

However, this should not be ignored when it comes to precise physical electromagnetic experiments.

A stable current also produces a magnetic field, but the biocurrent is too weak and produces a magnetic field that is much weaker than the Earth's magnetic field and cannot be measured with a small magnetic needle.

No, the induced magnetic field should be generated by a changing current, such as a current like alternating current, if we use a dry cell battery and connect its poles, although there is a current in the wire, but because it is not changing, there will be no magnetic field, and in the same way, the biological current of the human body should also be a stable current, so it will not produce a magnetic field.

The problem is that the current is very weak, and according to Fara's law of electromagnetic induction, an electric current that does not change in itself does not produce a magnetic field.

Which of the narratives about bioelectricity is false: the amplitude of receptor potentials and postsynaptic potentials is greater than that of action potentials.

Bioelectricity is described as follows:

Changes in the potential and polarity of organs, tissues, and cells of living organisms during life activities. It is a kind of physical, physical and chemical changes in the process of life activities, which is the manifestation of normal physiological activities and a basic feature of biological living tissues.

More than 200 years ago, human beings discovered the fact that the animal body was electrified, and used the bioelectric ** psychosis that occurred in electric rays. At the end of the 18th century, lGalvani discovered the phenomenon of contraction of frog muscle when it comes into contact with loops composed of different metals, and proposed the front point of the "animal electricity" of the balance fiber.

However, it was overturned by Volt to prove that the contraction of the frog muscle is only due to the conductive liquid contained in the frog muscle, which connects the different metals tied to the two ends of the frog muscle into a closed loop, which is the key to generating electricity. Later cMatthiuschi, Dubois Raymond and L

The work of Herman et al. has proved the existence of bioelectricity.

At the beginning of the 20th century, wEinthofen uses a sensitive chordalometer to measure the faint biocurrent directly. 1922, Gasser and JEv Ephyaulange was the first to use a cathode ray oscilloscope to study the nerve action potential, laying the technical foundation of modern electrophysiology.

In 1939, Hodgkin and Huxley inserted microelectrodes into the large nerve of the squid and directly measured the potential difference between the inside and outside of the nerve fiber membrane. This technological innovation has promoted the development of electrophysiology theory.

In 1960, electronic computers began to be used in electrophysiological research, so that evoked potentials could be clearly distinguished from spontaneous brain waves, and the parameters emitted by cells could be accurately analyzed and calculated.

Changes in the potential and polarity of organs, tissues, and cells of living organisms during life activities. It is a kind of physical, physical and chemical changes in the process of life activities, which is the manifestation of normal physiological activities and a basic feature of biological living tissues.

A microwave that is indispensable for good health, dominating the nervous system.

If I could, I think the medical community must have used this method, and electricity should be a foreign body to the human body, and the human body will definitely reject it.