Which preposition to use with cortex

of Occurrences 8%

That such a character as Madge Riversdale's should cover a small, firm core of faith and fear under a cortex of worldliness and frivolity; that religion should have such a hold on one so entirely irreligious by nature, is something quite inconceivable to a mind like, let us say, Mrs. Humphrey Ward's; and yet absolutely intelligible to the ordinary Catholic.

in Occurrences 3%

The fleeing rabbit, on the other hand, is conspicuous for a narrow strip of cortex in its adrenal.

to Occurrences 2%

An environment which tends to encourage the masculine traits in her, to arouse repeatedly her pugnacity and combative decisions in the more rapid give and take of the masculine world, will rouse the adrenal cortex to greater activity, and so make her face hirsute, her attitudes aggressive, and perhaps render her sterile.

as Occurrences 1%

All the evidence points to its medulla as the secretor of the substance which makes for the phenomena of fear, and to its cortex as dominant in the reactions of anger.

over Occurrences 1%

Should this preponderance of the cortex over the medullary portion not occur in the human, that is, if the proportions remain like those of other animals, the brain fails to develop properly, or an entirely brainless monster is generated.

Which preposition to use with  cortex