Tissue responses to neurotransmitters
A) are always excitatory.
B) vary depending upon the response of the membrane receptor to the presence of the
neurotransmitter.
C) result from the formation of second messengers.
D) are always inhibitory.
E) result from opening ion channels.
B) vary depending upon the response of the membrane receptor to the presence of the
neurotransmitter.
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Regarding the sympathetic nervous system, the neurotransmitter ACh is
A) always excitatory when used in the synapses of the sympathetic nervous system. B) broken down by COMT. C) going to reduce the activity of the other neurotransmitter norepinephrine. D) broken down by monoamine oxidase. E) a chemical similar to the structure of adrenaline.
The future head and buttocks regions of the embryo are facilitated by the process of _____________ folding
A. cleavage B. cephalocaudal C. transverse D. amitotic E. chorionic
High demands for ATP make ____________________ alone an insufficient and inefficient supplier of power for most cells
Fill in the blank(s) with correct word
An EPP is a graded potential
Indicate whether the statement is true or false