Which of the following is NOT true of the myelin sheath?
A. The myelin sheath is an electric insulator.
B. The myelin sheath increases the speed of nerve impulse conduction.
C. The myelin sheath is part of a living cell.
D. The myelin sheath forms a wrapped coating around both axons and dendrites.
E. All of these are true of the myelin sheath.
Answer: D
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Which of the following statements is true regarding ball and socket joints?
A. They allow motion in all three planes B. They are triaxial. C. The glenohumeral joint is an example. D. both A and B E. all of the above
Second order neurons of the spinocellular pathways:
a. carry information about proprioception b. have cell bodies in the posterior root ganglion c. end in the olive d. all of the above
Egg and sperm cells (or their precursors) are called germ cells. all other cells in the body are called _____________ cells.
Fill in the blank(s) with the appropriate word(s).
Most of a membrane potential is established by the passive movement of different cations into and out of a cell
Indicate whether the statement is true or false