While Jane was running hot water for her son's bath, she touched the hot water pouring out and immediately pulled back her hand. This reaction resulted from activation of:
A) the brain.
B) the sympathetic nervous system.
C) a spinal reflex.
D) the parasympathetic nervous system.
C) a spinal reflex.
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Emily was in an automobile accident and suffered an injury to her brain that resulted in her having difficulty controlling her left arm. What part of Emily's brain was injured?
A. Left motor cortex B. Right motor cortex C. Corpus callosum D. Somatosensory cortex
Young children know their own gender at ____ years of age. They realize that their gender does not change by ages _____
a) 1–2; 2-3 b) 1–2; 3-4 c) 2–3; 3-4 d) 2–3; 4-5
Which of the following best summarizes the cellular mechanisms of reinforcement?
a. Change to the efficiency of dopamine reuptake inhibition b. Change to the predominance of presynaptic glutamate receptors c. Change to the predominance of presynaptic GABA receptors d. Change to the apoptosis of postsynaptic efficacies e. Change to the efficiency of presynaptic neurons to activate postsynaptic neurons
Most local anesthetics work by ___; some general anesthetics have the effect of ___
A) preventing neurons from depolarizing, increasing the hyperpolarization of neurons B) putting axons to sleep, putting the brain to sleep C) preventing concentration gradients, increasing electrical gradients D) increasing the polarization of neurons, preventing depolarizing