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Lymph, Immunity, Circulatory & Respiratory Systems (LICR)

This course is designed as a cross-reference guide focusing only on the most relevant topics. DOWI's goal is to connect the 'dots' of learning that will help you achieve your goals in understanding the topic.

The immune system is a host defense system comprising many biological structures and processes within an organism that protects against disease. Also respiratory apparatus, ventilatory system - is a biological system consisting of specific organs and structures used for gas exchange in animals and plants.
  • Lymph and Immune
  • Lymph and Immune Lecture 4-4
  • Stress Adrenal 4-7
  • Respiratory
  • The respiratory system 4-5
  • Immune and Respiratory Test
  • Circulatory
  • Blood 4-1
  • Blood Vessels 4-2
  • Heart Lecture 4-3
  • Circulatory System Test
Completion rules
  • All units must be completed
  • Leads to a certification with a duration: 3 years