Exhibit 4.19

                       AMENDED AND RESTATED REVOLVING NOTE

$10,000,000                                                    Chicago, Illinois
                                                                  March 29, 2005

      FOR VALUE  RECEIVED,  on or before June 16, 2007 (or, if such day is not a
Business Day, on the next following  Business Day),  the  undersigned,  Crdentia
Corp.,  a Delaware  corporation,  Baker  Anderson  Christie,  Inc., a California
corporation,  Nurses Network, Inc., a California corporation,  New Age Staffing,
Inc., a Delaware corporation, PSR Nurses, Ltd., a Texas limited partnership, PSR
Nurse  Recruiting,  Inc., a Texas  corporation  and PSR Nurses Holdings Corp., a
Texas corporation (each an "Original Borrower", and collectively,  the "Original
Borrowers"),   CRDE  Corp.,   a  Delaware   corporation,   Arizona  Home  Health
Care/Private  Duty, Inc., an Arizona  corporation,  Care Pros Staffing,  Inc., a
Texas corporation,  HIP Holding,  Inc., a Delaware corporation,  Health Industry
Professionals,  L.L.C., a Michigan limited liability company, Travmed USA, Inc.,
a North Carolina  corporation (each a "New Borrower",  and collectively with the
Original  Borrowers,  the  "Borrowers"  and,  individually,  each a "Borrower"),
jointly and  severally,  each  promise to pay to the order of BRIDGE  HEALTHCARE
FINANCE,  LLC,  (herein,  together with its successors  and assigns,  called the
"Lender"), the maximum principal sum of Ten Million Dollars ($10,000,000) or, if
less,  the aggregate  unpaid  principal  amount of all  Revolving  Loans made by
Lender to any one or more of the  Borrowers  pursuant to that  certain  Loan and
Security  Agreement dated as of June 16, 2004, among the Original  Borrowers and
Lender,  as modified by the  Amendment No. 1, Joinder and Consent to Amended and
Restated  Loan and Security  Agreement - Revolving  Loans,  dated as of the date
hereby,  among the Borrowers and Lender (herein,  as the same is amended and may
be further amended, modified, restated or supplemented from time to time, called
the "Loan Agreement").

      Each Borrower, jointly and severally, further promises to pay to the order
of Lender interest on the aggregate  unpaid principal amount hereof from time to
time  outstanding  from the date hereof  until paid in full at such rates and at
such times as shall be determined in accordance  with the provisions of the Loan
Agreement.  Accrued interest shall be payable on the dates specified in the Loan
Agreement.

      Payments of both principal and interest are to be made in the lawful money
of the United  States of  America in  immediately  available  funds at  Lender's
principal office at 233 South Wacker Drive, 53rd Floor, Chicago, Illinois 60606,
or at such  other  place as may be  designated  by  Lender to the  Borrowers  in
writing.

      This  Amended  and  Restated   Revolving   Note  (the  "Note")   evidences
indebtedness  incurred  under and is subject to the terms and  provisions of the
Loan  Agreement.  The Loan  Agreement,  to which  reference is hereby made, sets
forth said terms and  provisions,  including  those under which this Note may or
must be paid prior to its due date or may have its due date  accelerated.  Terms
used but not  otherwise  defined  herein are used  herein as defined in the Loan
Agreement.  This Note is  secured  by the  personal  property  described  in and
pursuant to the Loan Agreement and various Loan  Documents  referred to therein,
and  reference is made thereto for a statement of terms and  provisions  of such
Collateral  security,  a description  of Collateral  and the rights of Lender in
respect thereof.

<PAGE>

      In addition to, and not in limitation of, the foregoing and the provisions
of the Loan  Agreement  hereinabove  referred  to,  each  Borrower,  jointly and
severally,  further agrees, subject only to any limitation imposed by applicable
law, to pay all reasonable expenses,  including  reasonable  attorneys' fees and
expenses,  incurred by the holder of this Note in seeking to collect any amounts
payable  hereunder  which are not paid  when due,  whether  by  acceleration  or
otherwise.

      All parties hereto, whether as makers,  endorsers or otherwise,  severally
waive  presentment,  demand,  protest and notice of dishonor in connection  with
this Note.

      This Note is binding upon the Borrowers and their  successors and assigns,
and shall inure to the benefit of Lender and its  successors  and  assigns.  The
Borrowers  and their  successors  and  assigns  shall be jointly  and  severally
obligated  hereunder.  This Note is made under and  governed  by the laws of the
State of Illinois without regard to conflict of laws principles.

      This Note replaces in its entirety and is in  substitution  for but not in
payment of that  certain  Revolving  Note dated as of June 16,  2004 (the "Prior
Note"),  made by Original  Borrowers in favor of Lender in the aggregate maximum
principal  amount  of  $15,000,000  and  does not and  shall  not be  deemed  to
constitute a novation thereof.  Such Prior Note shall be of no further force and
effect upon the execution of this Note; provided,  however, that all outstanding
indebtedness,  including,  without limitation,  principal and interest under the
Prior Note as of the date of this Note, is hereby deemed indebtedness  evidenced
by this Note and is incorporated herein by this reference.

                               [SIGNATURES FOLLOW]

                                       2
<PAGE>

              Signature Page to Amended and Restated Revolving Note

      IN WITNESS  WHEREOF,  each Borrower has executed this Revolving Note as of
the day and year first above written.

                                       CRDENTIA CORP.,
                                       a Delaware corporation

                                       By: /s/ James D. Durham
                                           -------------------
                                           James D. Durham
                                           Chief Executive Officer

                                       BAKER ANDERSON CHRISTIE, INC.,
                                       a California corporation

                                       By: /s/ James D. Durham
                                           -------------------
                                           James D. Durham
                                           Chief Executive Officer

                                       NURSES NETWORK, INC.,
                                       a California corporation

                                       By: /s/ James D. Durham
                                           -------------------
                                           James D. Durham
                                           Chief Executive Officer

                                       NEW AGE STAFFING, INC.,
                                       a Delaware corporation

                                       By: /s/ James D. Durham
                                           -------------------
                                           James D. Durham
                                           Chief Executive Officer

                                       3
<PAGE>

                                       PSR NURSES, LTD,
                                       a Texas limited partnership

                                       By:   PSR NURSE RECRUITING, INC.
                                       Its:  General Partner

                                       By: /s/ James D. Durham
                                           -------------------
                                           James D. Durham
                                           Chief Executive Officer

                                       PSR NURSE RECRUITING, INC.,
                                       a Texas corporation

                                       By: /s/ James D. Durham
                                           -------------------
                                           James D. Durham
                                           Chief Executive Officer

                                       PSR NURSES HOLDINGS CORP.,
                                       a Texas corporation

                                       By: /s/ James D. Durham
                                           -------------------
                                           James D. Durham
                                           Chief Executive Officer

                                       4
<PAGE>

                                       CRDE CORP.,
                                       a Delaware corporation

                                       By: /s/ James D. Durham
                                           -------------------
                                       Name:
                                       Title:

                                       ARIZONA HOME HEALTH CARE/PRIVATE DUTY,
                                       INC.,
                                       an Arizona corporation

                                       By: /s/ James D. Durham
                                           -------------------
                                       Name:
                                       Title:

                                       CARE PROS STAFFING, INC.,
                                       a Texas corporation

                                       By: /s/ James D. Durham
                                           -------------------
                                       Name:
                                       Title:

                                       HIP HOLDING INC.,
                                       a Delaware corporation

                                       By: /s/ James D. Durham
                                           -------------------
                                       Name:
                                       Title:

                                       HEALTH INDUSTRY PROFESSIONALS, L.L.C.,
                                       a Michigan limited liability company


                                       By: /s/ James D. Durham
                                           -------------------
                                       Name:
                                       Title:

                                       TRAVMED USA, INC.,
                                       a North Carolina corporation

                                       By: /s/ James D. Durham
                                           -------------------
                                       Name:
                                       Title: