Intro to A&P

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Author:
alyssau12
ID:
282409
Filename:
Intro to A&P
Updated:
2014-09-08 14:34:54
Tags:
ANSC
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Description:
ANSC group test 1
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  1. subdivisions of anatomy:
    • macroscopic
    • microscopic (cellular)
    • developmental (fetus)
  2. subdivisions of physiology:
    • operation of organ systems
    • cellular/molecular events
  3. What does a structures function depend on?
    its form
  4. what are the levels of structural organization?
    chemical > cellular > tissue > organ > organ system > organism
  5. What are the necessary life functions?
    • maintaining internal balance
    • movement
    • responsiveness to environment
    • digestion
    • metabolism
    • excretion
    • reproduction
    • growth
  6. What are survival needs?
    • water
    • nutrients
    • oxygen
    • normal body temp
    • atmospheric pressure
  7. Why is water needed?
    provides environment for chemical reactions
  8. Why are nutrients needed?
    energy and cell building
  9. Why is oxygen needed?
    metabolic reactions
  10. Why is a normal body temp needed?
    necessary for chemical reactions to occur at life-sustaining rates
  11. Why is atmospheric pressure needed?
    proper breathing and gas exchange
  12. What does homeostasis do?
    keeps everything in balance
  13. How does homeostasis work?
    • stimulus produces a change
    • change is detected by a receptor
    • receptor sends info to the control center
    • control center notifies the effector
    • effector helps the system get back into homeostasis
  14. What are examples of positive feedback?
    • parturition
    • blood clotting
  15. What drives homeostasis?
    negative feedback
  16. What does negative feedback do?
    tries to shut off or stop a response
  17. What does the plasma membrane do?
    provides structure and regulates what goes in and out of the cell
  18. What is the plasma membrane made up of?
    • lipids
    • a phospholipid bilayer
  19. What do the proteins in the phospholipid bilayer do?
    • let things in
    • let things out
    • allow changes
  20. What does the cytoplasm do?
    keeps the integrity of the cell (gives it shape)
  21. What do mitochondria do?
    require oxygen to make cellular energy (ATP)
  22. What does the nucleus do?
    • creates RNAs
    • synthesizes proteins
    • control center of cell
  23. What does the endoplasmic reticulum do?
    assists in protein synthesis
  24. What does the Golgi apparatus do?
    • packages and transports what's made in the nucleus
    • destroys incorrect proteins

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