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Did you know?

Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

Did you know?

Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

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Approximately 500,000 babies are born each year in the United States to teenage mothers.

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Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

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Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

Electronmicrograph showing a blood clot composed of fibrin, red blood cells, and tissue debris. Electronmicrograph showing a blood clot composed of fibrin, red blood cells, and tissue debris.
Coronary artery bypass graft (CABG). The grafts are often obtained from the patient’s saphenous vein Coronary artery bypass graft (CABG). The grafts are often obtained from the patient’s saphenous vein
Occlusion or narrowing of the carotid artery disrupts blood flow Occlusion or narrowing of the carotid artery disrupts blood flow
Relationship between blood and lymph capillaries. Relationship between blood and lymph capillaries.
Estimating Potential Blood Volume Loss (Part 2) Estimating Potential Blood Volume Loss (Part 2)
Calculation of the probabilities in a mating involving the ABO blood type Calculation of the probabilities in a mating involving the ABO blood type
Video: Rena arc construction

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