BIO 255N Week 1 Study Guide (BIO 255N Week 1 Study Guide (Chapter 20))
Chamberlain College Of Nursing
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Exam (elaborations)
BIO 255N Week 1 Study Guide (Chapter 20)
Anatomy and Physiology 
BIO 255N 
Week 1 Study Guide (Chapter 20) 
Mark Greco, MD 
I. ANATOMY OF THE HEART 
A. Location of the heart 
1. The heart is situated between the lungs within the mediastinum mostly below the 
sternum with about two-thirds of its mass to the left of the midline (Figure 20.1). 
2. Think of the heart as a cone lying on its side and resting on the diaphragm. The 
pointed apex is formed by the tip of the left ventricle (a lower chamber of the heart) 
and is directed downward...
Exam (elaborations)
Bio 255 Week 2 Quiz Questions And Answers ‖ 2020&Sol; 2021
Popular1.	Question :	(TCO2) Which is the pulse pressure for an individual with a diastolic pressure of 90 mm Hg and a systolic pressure of 135 mm Hg? 
		 -45 mm Hg 
 
 		 	 40 mm Hg 
 
 		 	 45 mm Hg 
 
 			 65 mm Hg 
 
 			 None of the above 
 
Question 2.	Question :	(TCO2) Which is the correct mean arterial pressure for an individual with hypertension and a blood pressure of 150/90 mm Hg? 
 
 	Student Answer:	 	 110 
 
 			 95 
 
 			 240 
 
 			 100 
 
 			 90 
 
 Question 3.	Question :	(...