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Although not all of the following muscle groups are commonly used, intramuscular injections may be given into the abdominals, biceps, calves, deltoids, gluteals, laterals, pectorals, quadriceps, trapezoids, and triceps.

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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

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The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.

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The Centers for Disease Control and Prevention has released reports detailing the deaths of infants (younger than 1 year of age) who died after being given cold and cough medications. This underscores the importance of educating parents that children younger than 2 years of age should never be given over-the-counter cold and cough medications without consulting their physicians.

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Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

The constellation of Leo as it can be seen by the naked eye. Lines have been added. The constellation of Leo as it can be seen by the naked eye. Lines have been added.
Firing Rate of Individual SCN Neurons in a Tissue Culture Color bars have been added to emphasize th Firing Rate of Individual SCN Neurons in a Tissue Culture Color bars have been added to emphasize th
A close-up showing the recessed center electrode on a spark tester. It is recessed 3/8 inch into ... A close-up showing the recessed center electrode on a spark tester. It is recessed 3/8 inch into ...
The Emergency Action Guide entry for styrene. Useful information includes emergency response ... The Emergency Action Guide entry for styrene. Useful information includes emergency response ...
The WISER entry for hydrogen cyanide (bottom). Useful information includes detailed health ... The WISER entry for hydrogen cyanide (bottom). Useful information includes detailed health ...
At 19 months, Merr would clearly pass the 17-month item on the Bayley Scales At 19 months, Merr would clearly pass the 17-month item on the Bayley Scales
Video: Gastrulation: cross section of the frog

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