When tiny amounts of hormones are cast into your bloodstream, they can evoke profound effects on organs far from the gland that secreted them. The endocrine glands that produce hormones -- the pituitary, pineal, thyroid, thymus, parathyroids, adrenals, pancreas and gonads -- are scattered throughout your body. Some hormones, such as estrogen, originate from several glands and tissues.
Psychrometer An instrument used to measure the water vapor content of the air. It consists of two thermometers (dry bulb and wet bulb). After whirling the instrument, the dew point and relative humidity can be obtained with the aid of tables.
eÂ·lecÂ·troÂ·myÂ·oÂ·graph. n. An instrument used in the diagnosis of neuromuscular disorders that produces an audio or visual record of the electrical activity of a skeletal muscle by means of an electrode inserted into the muscle or placed on the skin. eÂ·lecâ²troÂ·myâ²oÂ·graphâ²ic adj.eÂ·lecâ²troÂ·myâ²oÂ·graphâ²iÂ·calÂ·ly adv.lectromyography. A diagnostic method of examining the electrical activity of the muscles using metal probes that are inserted into the muscles.