Category: P

A sensation of light caused by electrical or mechanical stimulation of the retina.  

A phospholipid found in amniotic fluid, pulmonary effluent, and semen. It first appears in amniotic fluid during week 36 of pregnancy, confirms fetal gestational age, and is an accurate predictor of fetal lung maturity.  

Energy derived from phosphorylated compounds such as adenosine triphosphate (ATP) and creatine phosphate.  

A subjective sensation of light or color.  

An asexual stage of a multistage animal life cycle.  

The subjective perception of sensations upon hearing certain sounds.  

The use of ultrasound to introduce medication into a tissue. This has been used in treating injuries to soft tissues. Not all medicines are suitable for application using this technique.  

Any disease of organs affecting speech.  

The recording of sounds made by contracting muscular tissue.  

A recording of sound produced by the action of a muscle.