For a hair cell of the organ of corti to depolarize which of thefollowing must open?
a) sodium ligand-gated channel
b) potassium ligand-gated channel
c) potassium mechanically-gated channel
d) sodium voltage gated channel
e) potassium voltage gated-channel
2) which of the following is Not true concerning the ANS(autonomic nervous system)?
a) the sympathetic division originates from the brainstem
b) it utilizes ganglia
c) parasympathetic axons are found in cranial nerve X(vagus)
d) it always involves preganglionic and postganglionicneuron
e) it is an involuntary motor system
