The sense of taste is often impaired from involvement of the chorda tympani nerve.

This view was finally established in 1858 by Claude Bernard's experiments on the chorda tympani and the submaxillary gland.

A very small species (L. pusillus) with tufted green fronds grows parasitic on the fronds of Chorda and the stems of Laminaria.

The heart existed as a simple pulsating vessel; and the chorda dorsalis took the place of a vertebral column.