internal secretion

British  

noun

1. physiol a secretion, esp a hormone, that is absorbed directly into the blood

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Example Sentences

Hormones are these internal secretions that come out of a gland, and they go through the blood, but they go to a specific target.

From The Verge

In many cases the internal secretion is no mere accumulation, e.g. the internal skeleton of the Radiolaria, and the nematocysts of the Coelentera.

From Project Gutenberg

In the adrenal type Sajous argues that adrenalin produces lesions experimentally, therefore the adrenal gland has a profound influence by its internal secretion in connection with the sympathetic system in producing degenerations leading to arteriosclerosis.

From Project Gutenberg

Such an internal secretion would not be surprising in the light of all that we have learned of the physiological nexus of organs in recent years.

From Project Gutenberg

This was the first time in physiology that the idea of an internal secretion was advanced.

From Project Gutenberg