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Did you know?

Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

Did you know?

HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

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It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

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The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").

A classification system for living and extinct organisms. A classification system for living and extinct organisms.
Tracheal Tube Respiratory System as diagrammed in a generalized insect Tracheal Tube Respiratory System as diagrammed in a generalized insect
The respiratory system. The respiratory system.
Development of the Nervous System: Dorsal View Development of the Nervous System: Dorsal View
The Cre-Lox system for creating conditional knockouts The Cre-Lox system for creating conditional knockouts
Video: Simple and Double Sugar

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