1- Which of the following accurately represents the order of complexity for the components of the body, from least to most complex?
  • epithelial tissue
  • Intrinsic control mechanisms maintain the extracellular fluid in a constant state.
  • If blood pressure increases above normal, baroreceptors in major arteries detect the change and send signals to the brain. Certain areas of the brain then send signals to the nerves that control the heart and blood vessels to make the heart beat slower and the blood vessels increase in diameter, which in turn reduce the blood pressure.
  • cells, tissues, organs, organ systems
1- What type of tissue separates the internal from the external environment?
  • epithelial
  • Tissues that are grouped together
  • epithelial tissue
  • False
1- The body's internal environment is separated into compartments by barriers, including epithelial barriers, which may or may not allow for the movements of molecules from one compartment to the next. Which of the following terms most accurately describes these membranes?
  • epithelial tissue
  • cells, tissues, organs, organ systems
  • Semipermeable or selectively permeable
  • Tissues that are grouped together
1- The lumen of which of the following systems is part of the INTERNAL environment?
  • cells, tissues, organs, organ systems
  • epithelial
  • cardiovascular system
  • epithelial tissue
1- What tissue type lines internal hollow organs and external surfaces of the body, providing a barrier between the internal and external environment?
  • cells, tissues, organs, organ systems
  • False
  • epithelial
  • epithelial tissue
1- Referring to a membrane as "selectively permeable" describes its ability to ________.
  • restrict the movement of particular molecules across a membrane
  • cells, tissues, organs, organ systems
  • Tissues that are grouped together
  • Intrinsic control mechanisms maintain the extracellular fluid in a constant state.
1- Connective tissue forms both endocrine and exocrine glands.
  • True
  • False
1- Intracellular and extracellular fluid are of the same ion composition.
  • True
  • False
1- Positive feedback loops are impossible to stop once they have begun.
  • True
  • False
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