dianaess

Which is not true of Myelin? a. Is a fatty membranous sheath b. is formed by glial cells c. influences the rate of conduction of the electrical signal down an axon d. myelin covers all parts of the neuron: axon, cell body, and dendrites e. none of the above Which of the following is not true about axon transport? a. it refers to the passage of materials from the cell body of a neuron to the axon terminals b. it refers to the passage of meterials from axon terminals to the cell body of neuron c. it refers to the transport of materials across the axonal membrane d. it is especially important for maintaining the integrity of neurons with long axons Which of the following is not true of glial cells? a. they form the myelin for axons b. neurons outnumber glial cells 10 to 1 in the nervous system c. they deliver fuel molecules to neurons and remove the wast products of metabolism d. they are important for the growth and development of the nervous system e. they regulate the composition of the extracellular fluid in the CNS The membrane potential of most neurons at rest is a. equal to the equilibrium potential of potassium ion b. equal to the equilibrium potential of sodium ion c. slightly more negative than the equilibrium potential of potassium ion d. slightly more positive than the equilibrium potential of potassium ion e. both equal to the equilibrium potential of sodium ion and slightly more negative than the equilibrium potential of potassium ion