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Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

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The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.

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The effects of organophosphate poisoning are referred to by using the abbreviations “SLUD” or “SLUDGE,” It stands for: salivation, lacrimation, urination, defecation, GI upset, and emesis.

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Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.

Negative Feedback Insulin Glucagon Negative Feedback Insulin Glucagon
Glucose and insulin channels Glucose and insulin channels
Insulin regimens. Insulin regimens.
The reaction of a PLP-dependent decarboxylation to yield serotonin The reaction of a PLP-dependent decarboxylation to yield serotonin
Proposed mechanism of glutamine-dependent amidotransferases Proposed mechanism of glutamine-dependent amidotransferases
Insulin Secretion Insulin Secretion
Video: Pneumonia Animation

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