Interstitial fluid has a relatively ________ concentration of sodium and chloride; the concentrations of ions within the interstitial fluid and blood plasma are very ________.
A. high; different
B. low; different
C. high; similar
D. low; similar
Answer: C
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The term for the ridge where the trachea bifurcates into the right and left primary bronchi is the ____________________.
Fill in the blank(s) with the appropriate word(s).
The cranial nerve with a cervical origin (spinal cord) is the ________
A) hypoglossal B) vagus C) glossopharyngeal D) accessory
How do epithelial cells obtain their nourishment and get rid of their waste?
A. Through the blood vessels of the underlying connective tissue B. Through small channels in the tissue C. Through their extensive blood vessels D. Through the air in the environment E. By a combination of all of these methods
Which of the elements of a reflex arc is responsible for delivering motor impulses from the central nervous system to effector organs?
A) motor neuron B) sensory neuron C) integration center D) sensory receptor