The source connects these exceptional forms with organs occurring in an associated pair.
This is a source-specific explanation, not a general license to drop feminine tāʾ from every paired body part.
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Why the Text Mentions These Exceptions
The Dual Noun: Inflection, Maqṣūr, Mamdūd and Iḍāfah
The source connects these exceptional forms with organs occurring in an associated pair.
This is a source-specific explanation, not a general license to drop feminine tāʾ from every paired body part.