Conditioning, Pavlovian: Use of a system of rewards and punishments to influence behavior. Named after the Russian physiologist Ivan Petrovich Pavlov, who conditioned dogs to respond in what proved to be a predictable manner by giving them rewards.
The Reality Female Condom was approved by U.S. Food and Drug Administration (FDA) in April 1993. It consists of a lubricated polyurethane sheath shaped similarly to the male condom. The closed end, which has a flexible ring, is inserted into the vagina, while the open end remains outside, partially covering the labia. The female condom, […]
- Condom, female
Condom, female: Although the word “condom” usually conjures up the male condom, there is a female condom. The Reality Female Condom was approved by U.S. Food and Drug Administration (FDA) in April 1993. It consists of a lubricated polyurethane sheath shaped similarly to the male condom. The closed end, which has a flexible ring, is […]
- Condom, male
Condom, male: The male condom is a sheath placed over the erect penis before penetration, preventing pregnancy by blocking the passage of sperm. It is a barrier method of contraception. A condom can be used only once. Although some condoms have spermicide added (the spermicide is usually nonoxynol-9 in the United States) to kill sperm, […]
- Conduction system, cardiac
Conduction system, cardiac: The electrical conduction system that controls the heart rate. This system generates electrical impulses and conducts them throughout the muscle of the heart, stimulating the heart to contract and pump blood. Among the major elements in the cardiac conduction system are the sinus node, atrioventricular node, and the autonomic nervous system. The […]
Condyloma: Wartlike growths around the anus, vulva, or glans penis. There are three major types of condyloma, each of which is sexually transmitted: condyloma acuminatum (warts around the vulva), condyloma latum (a form of secondary syphilis), and condyloma subcutaneum (also known as molluscum contagiosum).