Traditional lecture course

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Traditional lecture course
Critical thinking
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Second law of thermodynamics
The Second Law (Law of Energy Decay) states that
every system left to its own devices always tends
to move from order to disorder, its energy
tending to be transformed into lower levels of
availability, finally reaching the state of
complete randomness.
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Key concepts

• The human body represents a series of specific
  environments.
• Host defense systems directed at eliminating
  harmful organisms.
• Bacteria can be helpful or harmful.
• Pathogenic organisms have virulence factors that
  enable them to compete effectively with host
  defenses.
• Microbe-human interaction is a continuing and
  dynamic struggle.

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Figure 26.1 (Part 1) Normal human microbiota
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Figure 26.1 (Part 2) Normal human microbiota
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Figure 26.2 Human skin
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Figure 26.3 (Part 1) Inflammatory response
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Figure 26.3 (Part 2) Inflammatory response
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Figure 26.4 Origin of blood cells
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Figure 26.5 Phagocytosis
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Figure 26.6 Human cardiovascular and lymphatic
systems
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Figure 26.7 Human lymphatic system
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