Science (2015) Grade(s): 09-12 - Human Anatomy and Physiology

SC15.HAP.12

Obtain and communicate information to explain the lymphatic organs and their structure and function.

Unpacked Content

Scientific and Engineering Practices

Developing and Using Models; Obtaining, Evaluating, and Communicating Information

Crosscutting Concepts

Cause and Effect; Structure and Function

Knowledge

Students know:
  • The lymphatic system is composed of lymphatic glands, lymph nodes and lymph vessels.
  • The lymphatic system uses its own components, and cells derived from blood, to prevent and fight off infections.
  • The immune system is composed of several components: WBC's protect the body from disease and assist with repair after an injury, and the lymphatic system organs along with organs from other systems act as barriers and fight off many micoorganisms.
  • Innate immunity provides barriers agains infections while acquired immunity permits the body to recognize and fight specific infections.
  • The primary immune response is the first reaction to an antigen while the secondary immune response protects against subsequent infections.
  • A variety of disorders can diminish immune system function or increase its sensitivity
  • Immunodeficiency disorders (such as AIDS, HIV or SCID) cause the body to lose its ability to fight disease. Hypersensitivities are disorders in which the immune system overreacts to an antigen (allergies).

Skills

Students are able to:
  • Gather, read, and interpret scientific information about the lymphatic system and its structure, including its various components.
  • Gather, read, and interpret scientific information about the lymphatic system and its function, including its various components.
  • Communicate scientific information, in multiple formats (e.g., orally, graphically, textually) to explain the structure and function of the lymphatic system, as a whole, and of its intrinsic parts.
  • Develop and use models based on evidence to illustrate and explain the body's lines of defense and innate immunity.
  • Develop and use models based on evidence to illustrate and explain the body's lines of defens and acquired immunity.
  • Use scientific literature to identify conditions and diseases that effect the lymphatic system.
  • Evaluate, based on evidence, how these conditions and diseases affect the body.
  • Analyze data in order to make a valid and reliable scientific claim about how the body responds to the identified conditions and diseases in its attempt to maintain homeostasis.

Understanding

Students understand that:
  • The lymphatic system closely interacts with the cardiovascular system circulating along with it, helping with distributing hormones, nutrients, and wastes.
  • The lymphatic system is often called a secondary circulatory system and helps to maintain blood volume homeostasis.
  • Numerous organs and tissues are structurally designed to play several different roles in the lymphatic system.
  • The lymphatic system is made of several different tissues, and organs that provide defense again infections and environmental hazards.
  • The lymphatic system interacts with all other systems in the body to create specific immune responses.
  • Genetic, environmental, and lifestyle factors can contribute to the development of lymphatic disorders.
  • Lifestyle choices and various medications can help alleviate some lymphatic disorders.
  • Multiple systems interact to play a part in lymphatic function and pathology.

Vocabulary

  • edema
  • hilum (lymph node)
  • lymph
  • lymph gland
  • lymph node
  • lymph vessel
  • lymphatic sinuses
  • lymphatic trunk
  • spleen (red pulp, white pulp)
  • tonsils
  • acquired immunity
  • antibody (IgG, IgE, IgA, IgM, and IgD)
  • antigen
  • cell-mediated immunity
  • complement
  • Immunoglobulin
  • Inflammatory response
  • innate immunity
  • interferons
  • memory cell
  • natural killer cells
  • nonspecific immunity
  • plasma cell
  • primary immune response
  • secondary immune response
  • supressor T lymphocyte
  • Human immunodeficiency virus
  • hypersensitivities
  • allergies
  • acquired immunodeficiency syndrome [AIDS]
  • severe combined immunodeficiency [SCID]
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