The human body contains intricate internal organ systems that have their own functions and perform particular tasks. However, each system depends upon the others, either directly or indirectly, in order for the body to function normally. The organs communicate with each other and adjust their performance, depending on what the body requires. There are eight separate internal organ systems found in the body which include: Circulatory System The circulatory system acts like a highway and […]
The History of Ultrasound
The history and evolution of diagnostic ultrasonography has been founded on the combined efforts of physicists, engineers, computer scientists, doctors, sonographers, physiologists, university researchers, as well as large commercial companies and individual entrepreneurs. Early Evolution of High Frequency Sound (1794 – 1893) 1794 – Lazzaro Spallanzani, an Italian physiologist and biologist, discovers that bats navigate in the dark through the reflection of high frequency sounds (echolocation). Spallanzani’s discovery becomes the basis of ultrasound physics. 1801 […]