Breast Changes
Zygote Formed After Fertilization
Diseased and Shrunken Glomerulus
Thyroxine, Hyperthyroidism
Magnesium Ion
Female Showing Muscle of Perineum
Brain Revealing Limbic System
Causes of Back Pain
Brain of Elderly
Biomarkers
Kids and Healthy Sleep
Man meditating
Three-dimensional visualization reconstructed from scanned human data; lateral view of a naked couple having sexual intercourse. The skeletal systems of both the man and woman are visible, as well as the cardiovascular system in the man and the nervous system in the woman. In the spirit of the Masters and Johnson's human sexual response cycle, this image represents the third stage: orgasm.
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