anatomy lec

• Anatomy


  Inseparable from physiology
• Physiology


  The study of how the body and its parts work or function
• The parts of our body form well-organized units, and each of those parts has a job to do to make the body operate as a whole
• At the chemical level, atoms combine to form molecules</b>
• Levels of the structural ladder

  • Chemical level
  • Cellular level
  • Tissue level
• Complex organisms

  • Human beings
• The smallest unit of all living things is a cell</b>
• Anatomy


  The study of the structure and shape of the body and its parts and their relationship to one another
• Tissue


  • Group of similar cells/a common function
• Anatomy


  Related most closely to gross anatomical studies
• In gross anatomical studies, preserved animals or their organs are dissected (cut up) to be examples
• Anatomy and physiology are always inseparable
• Structure determines what function can take place
• The simplest level of the structural ladder is the chemical level
• Molecules associate in specific ways to form microscopic cells</b>
• The structural ladder continues onto the tissue level</b>
• Basic tissue type plays a definite but different role in the body
• Simplest living creatures

  • Single cells
• Organ system


  A group of organs that work together to accomplish a common purpose
• Skeletal system

  Includes bones, cartilages, and joints. It supports the body, provides a framework for skeletal muscle movement, and has a protective function
• The highest level of structural organization is the sum total of all structure level working together is keep us alive
• 11 organ systems make up the living human being, or the organism
• Organ


  A structure composed of two or more tissue types that performs a specific function for the body
• Integumentary system

  The external covering of the body or the skin, including hair, nails. It has several functions such as waterproofing, cushioning, protection of deeper tissues, production of Vitamin D, excretion of salt in perspiration, regulation of body temperature, and sensory reception
• Cavity


  An empty space within a particular solid