Lab 12 The Lymphatic System


Student Name: Click here to enter text.

Access Code (located on the lid of your lab kit): Click here to enter text.
Pre-Lab Questions:
”1. In what areas are lymph nodes clustered? Why is this desirable?”

”2. Explain how the flow of lymph is controlled through lymphatic vessels. ”

Experiment 1: Examining the Microscopic Anatomy of Lymphatic System
Post-Lab Questions
”1. Label the items in the following slide pictures based on your observations. ”

A-
B-
C-
D-
E-
F-

”2. Are there more afferent or efferent vessels attached to a lymph node? What is the functional
purpose of this? ”

”3. What structural similarities did you observe between the lymph node and spleen? ”

Experiment 2: The Virtual Model – The Lymphatic System

Post-Lab Questions
”1. Is the cisterna chyli or the spleen more medial to the spinal cord? ”

”2. What is the name of the most superior lymph nodes in the head region? ”

”3. Where are the popliteal nodes located? ”

”4. What are the most inferior lymph nodes in the body called? ”

”5. What component of the lymphatic system filters lymph from the upper limbs and upper external
prat of the thorax?

Experiment 3: Fetal Pig Dissection: The Lymphatic System
”Insert photo of your pig’s exposed spleen with your name and access code handwritten clearly in the
background: “

Post-Lab Questions

  1. What observations did you make regarding the lymphatic system of the fetal pig?
  2. Compare and contrast the vessels of the lymphatic system and the circulatory system.