Hospital corpsmen were previously trained at Naval Hospital Corps School, Great Lakes, Illinois until the 2011 Base Realignment and Closure Bill caused Hospital Corps School to be relocated to the Medical Education and Training Campus (METC) at Joint Base San Antonio, Texas.
characteristic of highness or lowness of a sound is called The frequency of a sound wave determines the pitch of the sound you hear. Remember that frequency is the number of waves passing a fixed point in a given period of time. A high-frequency wave with short wave-lengths, such as that produced by a tiny flute, makes a high-pitched sound.
Hoarseness is a term that describes abnormal voice changes. When hoarse, the voice may sound breathy, raspy, strained, or there may be changes in loudness or pitch (how high or low the voice is). The changes in sound are usually due to disorders related to the vocal cords that are the sound producing parts of the voice box (larynx). While breathing, the vocal cords remain apart.