Oligodendrocytes serve the same purpose in the CNS that satellite cells do in the PNS.
Answer the following statement true (T) or false (F)
False
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Match the following examples of feedback mechanisms:
1) Blood glucose levels 2) Blood pressure 3) Blood clotting 4) Delivering a baby
The AV node is important because it
A) delays the transmission of the electrical impulses to the ventricles in order for the atria to finish contracting. B) directs electrical impulses from the ventricles to the atria. C) serves as the pacemaker in a normal heart. D) electrically opens the AV valves. E) None of these answers are correct.
Which of these would increase the tension generated in a skeletal muscle?
A. increasing the frequency of firing in alpha motor neurons innervating the muscle B. stretching the muscle to very long lengths C. resting the muscle for several weeks D. switching off fast-glycolytic motor units and activating an equal number of slow-oxidative motor units E. increasing the amplitude of action potentials in the alpha motor neurons that innervate the muscle
A __________ is a tubular organ that transports urine from a kidney to the
urinary bladder. Fill in the blank(s) with correct word