An IPSP is inhibitory because it
A. changes the threshold of the neuron.
B. hyperpolarizes the postsynaptic membrane.
C. prevents Ca2+ entry into the presynaptic terminal.
D. reduces the amount of neurotransmitter released by the presynaptic terminal.
E. depolarizes the postsynaptic membrane.
B
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Polar R groups of closely positioned amino acids often enter into _________ with each other, which helps give a protein its three-dimensional shape.
A. hydrophobic interactions?B. ionic bonds?C. hydrogen bonds?D. van der Waal repulsions?E. sulfur-carbon bonds
Based on their nomenclature, which of the following are spinal nerves? Select all that apply.
_____ T8 _____ CNX _____ CNVII _____ S1 What will be an ideal response?
An upward movement away from the longitudinal axis of the body in the frontal plane is
A) abduction. B) flexion. C) extension. D) rotation. E) adduction.
Light rays refract or bend when they go through
A) J.
B) L.
C) B.
D) X.
E) R.