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There are 60,000 miles of blood vessels in every adult human.

Did you know?

Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

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The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.

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Blastomycosis is often misdiagnosed, resulting in tragic outcomes. It is caused by a fungus living in moist soil, in wooded areas of the United States and Canada. If inhaled, the fungus can cause mild breathing problems that may worsen and cause serious illness and even death.

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Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.

Nondisjunction during the formation of haploid cells. Nondisjunction during the formation of haploid cells.
Plastid composition of egg cells from green, white, and variegated four-o'clock plants. Plastid composition of egg cells from green, white, and variegated four-o'clock plants.
The direction of plant cell expansion is controlled by microfibrils and microtubules. Plant cells en The direction of plant cell expansion is controlled by microfibrils and microtubules. Plant cells en
Food-conducting cells of the phloem. Food-conducting cells of the phloem.
Recognition of conformational epitopes by B cells. Recognition of conformational epitopes by B cells.
Experimental evidence that signals from dorsal lip cells initiate amphibian gastrulation. A dorsal l Experimental evidence that signals from dorsal lip cells initiate amphibian gastrulation. A dorsal l
Video: Krebs cycle : Formation of acetyl coenzyme A and Electron transport chain

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