Mississippi Science HAP.11.2
The Standard
- HAP.11
- Students will investigate the structures and functions of the lymphatic system, including the cause and effect of diseases and disorders.
Compare the primary functions of the lymphatic system and its relationship to the cardiovascular system.
2026 Mississippi College- and Career-Readiness Standards for Science · Lymphatic System
Teacher's field guide
What This Standard Means
What Students Need to Do
- Students compare blood's heart-driven circulation with the one-way flow of lymph. They trace extra tissue fluid back to veins and explain how lymph nodes filter pathogens and intestinal lymph vessels absorb fats.
What Mastery Looks Like
- Given a diagram, students can trace blood through the heart and vessels, then trace lymph from tissues through nodes into veins. They can explain how that return helps maintain blood volume and name two other jobs of the lymphatic system.
Common Misconceptions
- Some students think the heart pumps lymph around a closed loop. Others think lymph nodes pump fluid rather than filter it. Students may also assume absorbed fats enter blood capillaries directly instead of intestinal lymph vessels.
How to Assess It
- Give students a diagram labeled blood capillary, tissue, lymph vessel, lymph node, and vein. Ask them to draw how excess fluid returns to blood and name one other job of the lymphatic system.
Lesson moves
Ways to Teach It
Use blue yarn and water tokens to model fluid moving from a blood capillary into tissue, then through a lymph node to a vein.
Ask students to write: Why might an arm swell when its lymph vessels are damaged, even though blood still flows through it?
Give pairs route cards labeled capillary, tissue, lymph vessel, lymph node, and vein; have them race to sequence a fluid droplet's path.
Show a food label listing fat and ask students to trace absorbed fat from intestinal lymph vessels to veins.
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Printable HAP.11.2 Worksheet
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Related Standards
- HAP.11
Students will investigate the structures and functions of the lymphatic system, including the cause and effect of diseases and disorders.
- HAP.11.1
Analyze the functions of leukocytes, lymph, and lymphatic organs in the immune system.
- HAP.10.1
Design and use models to investigate the functions of the organs of the cardiovascular system.
- HAP.11.4
Correlate the functions of the spleen, thymus, lymph nodes, and lymphocytes to the development of immunity.
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