Daily Question: What is Anatomy and Physiology?

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Daily QuestionWhat is Anatomy and Physiology?

• Objectives
• How does the human body illustrate levels of
  organization?
• What are necessary life functions?
• What is Homeostasis?

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How does the human body illustrate levels of
organization?

• Subatomic particles
• Atom
• Molecule
• Macromolecule
• Organelle
• Cell
• Tissue
• Organ
• Organ system
• Organism

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What are necessary life functions?

• Movement
• Locomotion
• Movement of substances
• Responsiveness
• Reaction to change
• Digestion
• Breakdown of food
• Growth
• Increase in body size

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What are necessary life functions?

• Reproduction
• Production of new organisms and new cells
• Respiration
• Obtaining oxygen, releasing carbon dioxide
• Absorption
• Passage of substances through membranes

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What are necessary life functions?

• Circulation
• Movement of substances in body fluids
• Assimilation
• Changing of absorbed substances into chemically
  different forms
• Excretion
• Removal of wastes

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What are the survival needs of life?

• Food
• Water
• Oxygen
• Heat
• Pressure
• Atmospheric
• hydrostatic

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What is homeostasis?

• Homeostasis
• Maintenance of constant internal environment

• How does our body do this?
• Receptors
• Receives information about conditions
• Control center
• Tells the body what the set point should be
• Effectors
• Elicits responses
• http//www.phys.unsw.edu.au/biosnippets/

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What is negative feedback?

• Negative Feedback
• Shuts off the original stimulus, or reduces
  intensity
• Works like a household thermostat
• Includes most homeostatic control mechanisms

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What is positive feedback?

• Positive Feedback
• Increases original feedback
• This only occurs in blood clotting and child birth