Discoordination can also occur internally especially with the respiratory muscles and it often goes unrecognized.

Then bleeding can occur internally or ooze from needle sites and through the nose and mouth.

The fertilisation in this species occurs internally.

Hemorrhoids are swollen rectal blood vessels and can occur internally or externally.

Bleeding Bleeding, a loss of blood, can occur internally or externally through a natural opening or break in the skin.

The Trochidae are dioecious, and the fertilization occurs internally.

The animals are simultaneous hermaphrodites, and fertilization occurs internally.

In high voltage injuries, most damage may occur internally and thus the extent of the injury cannot be judged by examination of the skin alone.

The staining occurs in the interprismatic region internally on the enamel, which causes the tooth to appear darker or more yellow overall.

Thus it can be seen that change can occur internally in society through either innovation or rebellion.