Ohio State Board Nail Technician Practice Exam

The heart interior consists of 4 chambers 2 atria and 2 ventricles. Option A is incorrect because two chambers would not be enough to pump blood efficiently throughout the body. Option B is incorrect because while it is closer to the correct answer, it is still lacking one chamber. Option D is incorrect because five chambers are not found in the heart, and even numbers are not typically associated with the heart's anatomy. It's important to note that while the heart physically consists of 4 chambers, functionally it can be seen as having 2 chambers due to the synchronization of the atria and ventricles during the cardiac cycle. However, for the purposes of this question, the correct answer is 4.