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In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.

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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

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Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).

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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

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Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.

An artificial vagina, used to collect horse semen An artificial vagina, used to collect horse semen
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Expulsion of fetus and afterbirth during normal delivery. The afterbirth consists of the placenta, t Expulsion of fetus and afterbirth during normal delivery. The afterbirth consists of the placenta, t
Video: Interpreting a cladogram Animation

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