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1.5 Human Structure

Terms in this set (17)

Q1: List the levels of human structure from most complex to simplest.
Organism, organ systems, organs, tissues, cells, organelles, molecules, atoms.
Q2: Discuss the value of both reductionistic and holistic viewpoints to understanding human form and function.
Reductionism suggests that the human body can be understood by studying its parts. Holism suggests that human beings are more than the sum of their parts. To be effective treat not only the disease but the person as a whole.
Q3: Discuss clinical significance of anatomical variation among humans.
No two humans looks alike. Only 70% of people have the most common structure presented by books.
Q4: In the hierarchy of human structure, what is the level between organ system and tissue? Between cell and molecule?
Organs. Organelles.
Q5: How are tissues relevant to the definition of an organ?
Organs are composed of tissues.
Q6: Why is reductionism a necessary but not sufficient point of view for fully understanding a patient's illness?
To discover which what physical part of the patient isn't working properly. Not sufficient because patient must be treated as a whole, not just the malfunctioning parts.
Q7: Why should medical students observe multiple cadavers and not be satisfied to dissect only one?
Because no two people look alike on the inside.
human beings are more than the sum of their parts
holism
theory that the human body can be understood by studying its simpler components
reductionism
smallest particles with unique chemical identities
atoms
miscroscopic structures in a cell that carry out individual functions
organelles
make up organelles (the largest of macromolecules)
molecules
smallest units of an organism that carry out all basic functions of life
cells
mass of similar cells that form organs and perform specific functions
tissue
structure of two or more tissues that work together to carry out a function
organ
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