To implement the method of plethysmography, special devices are used - plethysmographs, of various modifications - electrical, water, photographic, mechanical.
Diagnostic procedure - testicular biopsy - is relatively rare, but it is considered very informative to determine the causes of impaired fertility in men, as well as other diseases associated with the male reproductive system.
Arterial pressure is the pressure that blood exerts on the walls of the vessels. This pressure is somewhat less in peripheral, smaller vessels. It fluctuates due to the contractile function of the heart.
. Evaluation of the veins is important for examination and palpation. When blood flow is disturbed in a large vein, collateral circulation rapidly develops.
Until recently, it was very common to study the biliary tract with duodenal probing, which is the introduction of a probe into the duodenum to obtain its contents.
Quantitative (digital, computer, paperless) electroencephalography arose in connection with the rapid development of electronic computing as a further development of the EEG method.
