Electrical activity diagram of human organs

Update Date: 2025-10-20 Source: Network

summary

Human tissues and organs composed of excitatory cells, such as brain, heart, skeletal muscle, smooth muscle and retina, form complex current circuits and electric field distribution due to the continuous occurrence and propagation of cell action potential in life activities. We can measure certain potential changes on the body surface of these tissues and organs, which can provide important information for understanding the physiology and pathology of these tissues and organs. So what are the electrical activity diagrams of human organs? Next, I'll share my experience with you.

Electrical activity diagram of human organs

First, the brain includes the brain, cerebellum and brain stem. A layer of structure on the surface of the two hemispheres of the brain is called cerebral cortex, which is the material basis of human thinking activities. The cerebral cortex is gray matter, which is composed of neurons. These neurons form various nerve centers.

Second: the potential generated in the cerebral cortex is transmitted to the scalp surface through cerebrospinal fluid, meninges, skull and subcutaneous tissue. Placing electrodes on the scalp surface can detect the changes of potential or potential difference formed by a large number of brain cells with time.

Third, there is only the interference and noise of human body or instrument in EMG. When the muscle is slightly forced, the muscle wave is discrete; when the muscle is tonic and contractive, due to many motor units participating in the activity, the frequency increases, and the waveforms interfere with each other, it is no longer possible to distinguish a single muscle wave.

matters needing attention

1. Parathyroid gland secretes parathyroid hormone and its main function is to regulate the metabolism of calcium and phosphorus. 2. Gonads are different between men and women. The male testicular stromal cells secrete androgen; the female ovarian follicles secrete estrogen during maturation, and the corpus luteum after ovulation secretes progesterone. 3. The human body's movement system is composed of bone, bone connection and skeletal muscle. It is the main organ for people to work and exercise. 4. The movement system is composed of bone, bone connection and muscle, which has the functions of support, protection and movement.