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Did you know?

When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

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More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

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Individuals are never “cured” of addictions. Instead, they learn how to manage their disease to lead healthy, balanced lives.

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IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

Common Risk Factors Common Risk Factors
Risk Factors for Developing Breast Cancer Risk Factors for Developing Breast Cancer
Environmental Monitoring (EM) - Particle Counter Environmental Monitoring (EM) - Particle Counter
Disease: Major environmental health problems Disease: Major environmental health problems
Factors That Affect BP Factors That Affect BP
Factors Affecting the Affinity of Hb for O2 Factors Affecting the Affinity of Hb for O2
Video: Transcription - Introns and exons

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