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Did you know?

People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

Did you know?

Lower drug doses for elderly patients should be used first, with titrations of the dose as tolerated to prevent unwanted drug-related pharmacodynamic effects.

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

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If you could remove all of your skin, it would weigh up to 5 pounds.

Did you know?

Cyanide works by making the human body unable to use oxygen.

Dividing bacterial cells Dividing bacterial cells
Color-enhanced scanning electron micrograph of HIV virus (red) infecting T-helper cells (green). Color-enhanced scanning electron micrograph of HIV virus (red) infecting T-helper cells (green).
Electrical charge of the inner and outer regions of nerve cells Electrical charge of the inner and outer regions of nerve cells
Schematic diagram showing polyclonal response by B cells against linear epitopes. Schematic diagram showing polyclonal response by B cells against linear epitopes.
Release of preformed and newly synthesized (de novo) mediators from mast cells. Release of preformed and newly synthesized (de novo) mediators from mast cells.
Cytokinesis in animal cells (a) and plant cells (b) Cytokinesis in animal cells (a) and plant cells (b)
Video: Frequency of stimulation and force (Recruitment of motor units and force)

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