The notion that the nervous system communicates using chemical messages was first demonstrated by:
A) Santiago Ramón y Cajal.
B) Camillo Golgi.
C) Otto Loewi.
D) Donald Hebb.
Correct Answer:
Verified
Q8: Acetylcholine helps _ muscle contraction in the
Q9: Compared with chemical synapses, electrical synapses:
A)transmit messages
Q10: Electrical synapses _ in mammals.
A)are not present
Q11: Electron microscopy is a useful tool in
Q12: Which of the following would NOT be
Q14: _ is linked with shaking in the
Q15: _ acts to increase heart rate.
A)Acetylcholine
B)Norepinephrine
C)Serotonin
D)Dopamine
Q16: A synaptic vesicle contains:
A)neurotransmitters.
B)structural proteins.
C)DNA.
D)neurotransmitters, structural proteins,
Q17: _ can also act as neurotransmitters.
A)Synapses
B)Mitochondria
C)Hormones
D)None of
Q18: A synaptic cleft is the space between:
A)a
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