The circulatory system consists of three components: the _______________ (_______________), the _______________ (_______________), and the _______________ (_______________ _______________)

According to the U.S. Department of Labor Statistics (2006–2010 edition), "job prospects should be best for medical assistants with formal training or experience, particularly those with ________."

a. integration b. accreditation c. certification d. identification

Cardiac muscle cells have the unique characteristics of excitability, ________, contractility, and automaticity

Fill in the blank(s) with correct word