Before puberty, the period during which secondary sex characteristics start to develop and the capability for sexual reproduction is attained.
The fold of skin that covers the head of the penis. Also known as the foreskin. Only about 1 in every 20 boys is born with a retractable foreskin. This reflects the fact that the histologic (tissue) development of the foreskin is usually not complete at birth. The foreskin is thus not fully separable from […]
- Prepuce, inflammation of the
inflammation of both the glans and foreskin. Circumcision prevents balanoposthitis. Without a foreskin, there can of course be no posthitis and hence no balanoposthitis. An uncircumcised boy should be taught to clean his penis with care to prevent infection and inflammation of the foreskin. Cleaning of the penis is done by gently, not forcibly, retracting […]
Age-related hearing loss with gradually progressive inability to hear, especially high frequency sounds. Presbycusis most often occurs in both ears, although not necessarily at the same time or rate. Because the loss of hearing is so gradual, people with presbycusis may not realize that their hearing is diminishing. They may have trouble distinguishing and understanding […]
The loss of the eye’s ability to change focus to see near objects. The reasons for this loss of the power of accommodation are not yet fully known. It is conventionally said to be due to the lens becoming less elastic with time. Presbyopia is associated with aging. It occurs in everyone. The first sign […]
A physician’s order for the preparation and administration of a drug or device for a patient. A prescription has several parts. They include the superscription or heading with the symbol “R” or “Rx”, which stands for the word recipe (meaning, in Latin, to take); the inscription, which contains the names and quantities of the ingredients; […]