The ____________________ serves as a relay station for preliminary processing of sensory input.
Fill in the blank(s) with correct word
(
Question 2) In most excitable cells, the rising phase of the action potential is due to
a. calcium efflux
b. potassium efflux
c. chloride influx
d. potassium influx
e. sodium influx
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Question 3) The ____________________ cerebral hemisphere excels in logical, analytical, sequential, and verbal tasks, such as math, language forms, and philosophy.
Fill in the blank(s) with correct word
(
Question 4) Which of the following is responsible for the falling phase of an action potential?
a. opening of Na+ gates
b. Na+-K+ pump restoring the ions to their original locations
c. greatly increased permeability to Na+
d. Na+ efflux
e. none of these
(
Question 5) The ____________________ association cortex is the part of the brain that brainstorms or thinks.
Fill in the blank(s) with correct word
(
Question 6) Which of the following is not a graded potential?
a. end-plate potential
b. action potential
c. slow-wave potential
d. receptor potential
e. postsynaptic potential
(
Question 7) In most people, the areas of the brain responsible for language ability are found in ____________________ hemisphere(s).
Fill in the blank(s) with correct word
(
Question 8) During the rising phase of the action potential,
a. PK+ is much greater than PNa+
b. PNa+ is much greater than PK+
c. PK+ is the same as P Na+
d. Na+ efflux occurs
e. b and d are true
(
Question 9) The motor cortex is activated by a widespread pattern of neuronal discharge, called the ____________________.
Fill in the blank(s) with correct word
(
Question 10) Graded potentials
a. are local changes in membrane potential that occur in varying degrees of magnitude
b. are weak action potentials
c. serve as long-distance signals
d. are only depolarizations
e. always lead to action potentials
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