The Lymphatic System

Instructions

Please read each section/question carefully. Answer questions in complete sentences, and if/when you need to cite outside materials, please use footnotes. All work is to be typed, and may be submitted either by email or in class. This assignment is due no later than midnight Tuesday August 24th. NO LATE PAPERS ACCEPTED.

Short Answer:

What is the function of the valves in lymphatic vessels? Name two things that cause lymph to move through lymphatic vessels.

Describe the contributions made by the lymphatic system to both the nonspecific defenses and the specific defenses of the body.

Consider the actions of the following defensive cells or chemicals: macrophages, memory B cell, cytotoxic T cell, plasma cell, complement. Consider the following household item: can opener, phone book, ant and roach spray, cookie cutter, garbage disposal. Match each cell to chemical to a household item and explain the analogy.
 
 
 
 

Case Study 1:

Anita is a 39-yr. Old, who is about 15% above ideal body weight. She suffers from edema in her lower limbs.

Q1: Why would elevation and massage help remove the excessive fluid?

Q2: what are two typical reasons why she might have edema?

Q3: why might Anita suffer painful bouts from her edema?