oxygen is the element that is most present in the human body.
oxygen is the element that is most present in the human body.
which element is most present in the human body?
oxygen
the adult human body averages ~53% water. this varies substantially by age, sex, and adiposity. in a large sample of adults of all ages and both sexes, the figure for water fraction by weight was found to be 48 ±6% for females and 58 ±8% water for males. water is ~11% hydrogen by mass but ~67% hydrogen by atomic percent, and these numbers along with the complementary % numbers for oxygen in water, are the largest contributors to overall mass and atomic composition figures. because of water content, the human body contains more oxygen by mass than any other element, but more hydrogen by atom-fraction than any element.
composition of the human body
section::::human senses and human body.:sight.:color: colorimetry.









































bullet::::- tristimulus colorimeter for quantifying colors and calibrating an imaging workflow









































section::::human senses and human body.:hearing.









































section::::human senses and human body.:hearing.:loudness in phon.









































bullet::::- headphone, loudspeaker, sound pressure gauge, for measuring an equal-loudness contour of a human ear.









































bullet::::- sound level meter calibrated to an equal-loudness contour of the human auditory system behind the human ear.









































section::::human senses and human body.:smell.









































bullet::::- olfactometer, see also the article about olfaction.









































section::::human senses and human body.:temperature (sense and body).









































section::::human senses and human body.:temperature (sense and body).:body temperature or core temperature.
measuring instrument