BI13_Ch1 PP Slides

BI13_Ch1 PP Slides - Goals Define anatomy and physiology...

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Goals • Define anatomy and physiology – How are they complementary? • Explain the 6 structural levels of organization of the human body • Name the 11 organ systems of the body – What function(s) does each perform? • Learn the language of anatomy
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Anatomy • Studies the structure of body parts • Easy to understand because it is concrete – You can see, feel, and examine where parts are and how they are connected
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2 Types of Anatomy • Gross Anatomy – Large structures visible to the naked eye • Brain, skeleton… • Microscopic Anatomy – Small structures visible only under a microscope • Nerve cells, bone cells… Gross Anatomy Microscopic Anatomy
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Physiology • Studies the functions of the body – How do the body parts do their jobs?
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Example of Physiology • Neurophysiology – How the nervous system works • Trickier because you can’t usually “see” what is going on – All the action usually occurs at the molecular and cellular level
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Complementarity of Structure and Function • Function always reflects structure – Physiology always reflects anatomy • What a structure can do depends on its form – A body part can only do its job if it has the right structure “You can’t have one without the other”
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Structure and Function Go Together • Example: – Bones can support and protect because they are made of hard minerals
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Practice Test Questions • True or False? Studying how oxygen gets into your blood is an example of anatomy. • Why do we study anatomy and physiology together?
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6 Levels of Structural Organization
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The Chemical Level • Atoms combine to form molecules – Carbon – Nitrogen – Oxygen
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The Cellular Level • Very large molecules are the building blocks of the cell – Protein – Lipids – Carbohydrates – Nucleic Acids • The plasma membrane is made of lipids, proteins, and carbohydrates Plasma membrane of a cell
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The Tissue Level • Tissues are groups of similar cells that have a common function • 4 Basic Types – Epithelial • Covers surfaces – Connective tissue • Supports and protects – Muscle • Allows movement – Nervous tissue • Controls everything Simple Columnar Epithelial Tissue
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The Organ Level • An organ is a discrete structure composed of at least two tissue types that performs a specific function for the body
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BI13_Ch1 PP Slides - Goals Define anatomy and physiology...

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