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Did you know?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

Did you know?

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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The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.

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The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.

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ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.

Body cavities. (A) Lateral view of a sagittal section through the body. (B) Anterior view of a front Body cavities. (A) Lateral view of a sagittal section through the body. (B) Anterior view of a front
Protraction and Retraction Protraction–Moving a body part forward. Retraction–Moving a body part bac Protraction and Retraction Protraction–Moving a body part forward. Retraction–Moving a body part bac
The digital image of a fetus shows a well-developed head and a comparatively smaller body. At 7 ... The digital image of a fetus shows a well-developed head and a comparatively smaller body. At 7 ...
Various views of the main body cavities. Various views of the main body cavities.
The Body’s Nutritional Requirements The Body’s Nutritional Requirements
Adult sponge, with a porous, asymmetrical body. Adult sponge, with a porous, asymmetrical body.
Video: Michaelis–Menten equation & Kinetic parameters

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