Understand Electrother apy 25. The use of __ to treat the skin is commonly referred to as electrotherapy. 26. Currents used in electrical __ are called __ 27. A(n) __ , or probe, is an applicator for directing electric current from an electrotherapy device to the client's skin and is usually made of __ __ ,or __ . 28. __ is the negative or positive poles of an electric current. Electrodes on many electrotherapy devices have one positively charged pole, called a(n) __ and one negatively charged pole, called a(n) __ 29. The positive electrode is usually __ and is marked with a Por a plus (+) sign. 30. The negative electrode is usually __ and is marked with an Nor minus (-) sign. 31. List the three modalities used in cosmetology. 1) 2) __ 3)

25. The use of **electricity** to treat the skin is commonly referred to as electrotherapy.<br /><br />26. Currents used in electrical **treatments** are called **therapeutic currents**.<br /><br />27. A(n) **electrode**, or probe, is an applicator for directing electric current from an electrotherapy device to the client's skin and is usually made of **metal** or **plastic**.<br /><br />28. **Polarity** is the negative or positive poles of an electric current. Electrodes on many electrotherapy devices have one positively charged pole, called a(n) **anode**, and one negatively charged pole, called a(n) **cathode**.<br /><br />29. The positive electrode is usually **red** and is marked with a **plus (+)** sign.<br /><br />30. The negative electrode is usually **black** and is marked with a **minus (-)** sign.<br /><br />31. List the three modalities used in cosmetology.<br />1) **Facials**<br />2) **Hair treatments**<br />3) **Nail care**