Exhibit 24

                                POWER OF ATTORNEY

        KNOW ALL MEN BY THESE PRESENTS, that the undersigned hereby constitutes
and appoints Keith Murphy and Tom Jurgensen, and each of them individually, his
or her true and lawful attorney-in-fact to:

                (1)  execute for and on behalf of the undersigned, in the
undersigned's capacity as an officer, director and/or 10% or greater
stockholder of Organovo Holdings, Inc. (the "Company"), any and all Form 3, 4
and 5 reports required to be filed by the undersigned in accordance with
Section 16(a) of the Securities Exchange Act of 1934, as amended, and the rules
thereunder;

                (2)   do and perform any and all acts for and on behalf of the
undersigned which may be necessary or desirable to complete and execute any
such Form 3, 4 or 5 report and timely file such report with the United States
Securities and Exchange Commission and any stock exchange or similar authority;
and

                (3)   take any other action of any type whatsoever in
connection with the foregoing which, in the opinion of such attorney-in-fact,
may be of benefit to, in the best interest of, or legally required by, the
undersigned, it being understood that the documents executed by such attorney-
in-fact on behalf of the undersigned, pursuant to this Power of Attorney, shall
be in such form and shall contain such terms and conditions as such attorney-
in-fact may approve in his discretion.

        The undersigned hereby grants to each such attorney-in-fact full power
and authority to do and perform each and every act and thing whatsoever
requisite, necessary, and proper to be done in the exercise of any of the
rights and powers herein granted, as fully to all intents and purposes as the
undersigned might or could do if personally present, with full power of
substitution or revocation, hereby ratifying and confirming all that such
attorney-in-fact, or his substitute or substitutes, shall lawfully do or cause
to be done by virtue of this Power of Attorney and the rights and powers herein
granted. The undersigned acknowledges that no such attorney-in-fact, in serving
in such capacity at the request of the undersigned, is hereby assuming, nor is
the Company hereby assuming, any of the undersigned's responsibilities to
comply with Section 16 of the Securities Exchange Act of 1934, as amended.

        This Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file Form 3, 4 and 5 reports with respect
to the undersigned's holdings of and transactions in securities issued by the
Company, unless earlier revoked by the undersigned in a signed writing
delivered to the foregoing attorneys-in-fact.

        IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney
to be executed as of this 9th day of March, 2022.


                                   /s/ Vaidehi Joshi
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                                   Signature

                                   Vaidehi Joshi
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                                   Print Name