The discovery that the brain contains specific

26.
The discovery that the brain
contains specific receptors for
manufactured opiate drugs, such as
morphine, implies that the body
must make an _______ substance to
interact with the same receptors.
A) exogenous
B) endogenous
C) excitatory

D) extemporaneous
27.
Which of the following presynaptic
events are in correct chronological
order?
Calcium ion influx, action potential
reaches axon terminal, vesicle fuses
with membrane, diffusion of
neurotransmitter
28.
The NMDA receptor is a type of
receptor for the neurotransmitter
29.
Most of the mitosis that will give rise
to the nervous system takes place
in the
30.
The main cellular feature that
permits a neuron to act as a small
battery is the
A) lipid bilayer membrane.
B) G-proteins.
C) nodes of Ranvier.
D) axon hillock.

31. Most ACh receptors in the brain are
32.
Most neurons in the vertebrate are
of which type?
33.
How many distinct layers are
observed in the human isocortex?
34.
The term “hyperpolarization” refers
to
A)
movement of the resting membrane
potential toward 0 mV.
B) greater positivity inside the neuron.
C) graded potentials.
D)
movement of the resting membrane
potential away from 0 mV.
35.
The gaps between segments of
myelin are known as