I didn’t say that the principle behind the specific examples that I gave were directly relevant to the practice of medicine. I said that the CLASSES in which those topics are taught contain underlying principles that are important to the study of medicine. As a quick example, in Physics 2, students learn a number of principles and forumlas related to electrical current, voltage, and resistance. The equations for determining these things are almost identical to those used to determine blood flow through the body. Cardiac output represents electrical current, blood pressure represents voltage and systemic vascular resistance represents electrical resistance. If one can understand the concepts related to electrical current, one will have a very easy time grasping hemodynamic concepts as well. Besides for other specific examples, most sciences are related to each other in some way, and knowledge gained in one area is very often at least tangentially applicable in another area. Being well rounded in the sciences is, in my opinion at least, very important to anyone seeking to enter the medical field. And at least for the time being (though there are some changes to the premed requirements that are being proposed), admissions offices at practically all US medical schools agree with me.
Thanks for your well wishes regarding the match!