Essentials of Human Anatomy & Physiology

Essentials of Human Anatomy & Physiology 9th Edition, 2009

ISBN-13: 9780321513427

Author: Elaine N. Marieb

Publisher: Pearson/Prentice Hall

Writing Assignment for Unit Three


· Begin each writing assignment by identifying the question number you are answering followed by the actual question itself (in bold type). 


· Use a standard essay format for responses to all questions (i.e., an introduction, middle paragraphs and conclusion). 


· Responses must be submitted as a MS Word Document only, typed double-spaced, using a standard font (i.e. Times New Roman) and 12 point type size. 
Word count is NOT one of the criteria that is used in assigning points to writing assignments. However, students who are successful in earning the maximum number of points tend to submit writing assignments that fall in the following ranges: Graduate courses: 500 - 750 words or 2 - 3 pages.

· 
Plagiarism 
All work must be free of any form of plagiarism.

· Put written answers into your own words. Do not simply cut and paste your answers from the Internet and do not copy your answers from the textbook. Be sure to refer to the course syllabus for more details on plagiarism and proper citation styles. 


Please answer ONE of the following:

1. List and describe the structure of the two major classifications of leukocytes.

2. Trace the path of a drop of blood, starting at the right atrium and returning to the right atrium, through the pulmonary and systemic circuits of the cardiovascular system. Identify the chambers, valves, and vessels (except specific systemic blood vessels that are not directly associated with the heart), and indicate whether the blood is oxygenated or deoxygenated in each area.

3. Describe the methods the body uses to help return lymph to the heart.

Unit 3 Examination