Hormones
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What this model shows
The person is a model. The heart rate (70 at rest, up to 110 beats per minute), the breathing rate (14 to 22 breaths per minute), the pupil diameter (3.5 to 6.0 mm) and the blood glucose concentration (90 to about 130 mg per 100 cm³) are typical values, not measurements of your own body.
The fright is simulated: there is no sound. The reflex is shown slowed down, because it is over in less than half a second; the 10 minutes after the fright are sped up into a few seconds.
The glows along the nerves show where the impulses are, the orange dots where the adrenaline is and the green dots where the glucose is. Real impulses give out no light, and adrenaline and glucose cannot be seen in the blood.
The organs are drawn simply, as in the readings’ figures. The testes and the ovaries are drawn in separate round insets.
With reduced motion each process is shown at one moment and then at its end, and the heart and the lungs in the drawing keep still.
Select a piece of equipment or a part of the body to read about it in the card.