1 These nerves control your movements and actions by passing information from your brain and spinal cord to your muscles.  Sensory nerves. These nerves relay information from your skin and muscles back to your spinal cord and brain. The information is then processed to let you feel pain and other sensations.
cirÂ·cumÂ·amÂ·buÂ·late. (sÃ»râ²kÉm-Ämâ²byÉ-lÄtâ²) tr.v. cirÂ·cumÂ·amÂ·buÂ·latÂ·ed, cirÂ·cumÂ·amÂ·buÂ·latÂ·ing, cirÂ·cumÂ·amÂ·buÂ·lates. To walk around (something), especially as part of a ritual: Circumambulate the city of a dreamy Sabbath afternoon (Herman Melville).
Reverberation. Reverberation (or reverb) is the persistence of sound in an enclosed space after its generation. It is relatively common artifact that limits the interpretation of the final imaging. This phenomenon is due to continuing repeated echoes between anatomic interfaces which are strong reflectors.hadowing. This very common artifact might be characterized as the âAchilles heelâ of echocardiography and occurs when the transmitted ultrasound beam encounters a medium of significantly different acoustic impedance and as a result is reflected back to the transducer.