Calcium ions (Ca 2+) are __________ and in highest concentration outside the cell. This means they have the effect of __________ the membrane, thereby contributing to excitatory postsynaptic potentials (EPSPs).
A. negatively charged; depolarizing
B. negatively charged; hyperpolarizing
C. positively charged; depolarizing
D. positively charged; hyperpolarizing
Answer: C
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Tad seems to thrive when faced with difficult challenges and usually feels in control of his life. He would probably be labeled a ________ personality
a. stressed b. Type B c. Type C d. hardy e. Type A
The area of the cortex that processes speech input is called
A) the motor area. B) Wernicke's area. C) Broca's area. D) the frontal lobe.
Suppose a baby is born whose Apgar score is 3. What would such a score most likely indicate?
a. All vital signs are perfect. b. All vital signs are normal. c. Some of the baby's bodily processes are not functioning fully. d. Immediate emergency measures are required.
The ________ is the large bundle of axons that connects the brain's two hemispheres and is responsible for relaying information between the two sides.
A. corpus callosum B. association cortex C. hypothalamus D. neocortex