Michigan Compiled Laws, Chapter 333. Health § 333.9121

Sec. 9121. (1) The department shall establish standards pursuant to section 9133  1 to regulate the procurement, processing, distribution, and use of blood, blood plasma, blood products, blood derivatives, and human and artificial tissues.

(2) The procurement, processing, distribution, and use of whole blood, blood plasma, blood products, blood derivatives, and human and artificial tissues including, but not limited to, corneas, bones, organs, or parts of organs for the purpose of injecting, transfusing, or transplanting into a human body, is for all purposes the rendition of a service by a person participating therein and, whether or not remuneration is paid to the person, is not a sale for any purpose.

(3) An express, implied, or other warranty does not attach to services described in subsection (2). A person involved in the rendition of the service is not liable as a result thereof, except for the person's own negligence or willful misconduct.