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PSYC 3310: Lecture 01-06 Questions And Answers Assessment 2024/2025 $14.99
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PSYC 3310: Lecture 01-06 Questions And Answers Assessment 2024/2025
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Reductionist approaches involve trying to explain ___. Answer: large things in terms of smaller things Ramón y Cajal suggested that the nervous system is composed of individual nerve cells - an idea known as the ___. Answer: neuron doctrine The effort to understand normal beh...

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  • 30 augustus 2024
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PSYC 3310: Lecture 01-06 Questions And
Answers Assessment 2024/2025

Reductionist approaches involve trying to explain ___. Answer: large things in terms of smaller
things



Ramón y Cajal suggested that the nervous system is composed of individual nerve cells - an idea known
as the ___. Answer: neuron doctrine



The effort to understand normal behavioral functioning by studying people with brain injuries is known
as ___. Answer: neuropsychology



A so-called split-brain patient has undergone surgery to have the ___ cut in half. Answer: corpus
callosum



Neuroscientists are most likely to adopt which of the following philosophical positions? Answer:
materialism



The ___ is the neuronal process that sends signals toward other neurons. Answer: axon



___ provide the myelin sheaths to axons located within the CNS. Answer: oligodendrocytes



___ are the glia that form the blood-brain barrier. Answer: astrocytes



Which of the following is not a component of a synapse?

a) perisynaptic bifurcation

,b) postsynaptic membrane

c) presynaptic membrane

d) synaptic cleft Answer: a) perisynaptic bifurication



___ are somatic organelles that package proteins inside cytoplasmic vesicles. Answer: Golgi bodies



The difference in electrical charge between the interior and exterior of a neuron is called the ___.
Answer: membrane potential



Compared to graded potentials, action potentials are ___. Answer: slow



For a resting neuron, which of the following is in highest concentration outside an axon? Answer:
chloride ions



When an action potential is at its peak, ___ ion channels are closed and ___ ion channels are open.
Answer: Na+;K+



The rise in the membrane potential associated with the first part of the action potential is the result of
rapid ___. Answer: Na+ influx



Which of the following is characteristic of metabotropic receptors but not characteristic of ionotropic
receptors?

a) associated ion channels are both quick to open and quick to close.

b) ATP must be formed by the receptor before the associated ion channel can close.

c) G-proteins must be activated for the associated ion channel to open.

d) receptors are located on the presynaptic membrane and not the postsynaptic membrane. Answer:
c) G-proteins must be activated for the associated ion channel to open.

,During saltatory conduction, signals travel along myelinated axon segments as ___. Answer: graded
potentials



When an action potential reaches an axon terminal, it causes ___. Answer: docking proteins to
disengage



Autoreceptors are located in the ___ membrane and their activation typically causes ___. Answer:
presynaptic; G-protein activation



When a postsynaptic ___ channel opens, the inevitable result is a(n) ___. Answer: K+; IPSP



The imaginary line that runs through the center of the CNS is called the ___. Answer: neuraxis



The sympathetic nervous system is part of the ___ system. Answer: autonomic



In the diagram above, the orange dot is located ___ to the brown dot. Answer: rostral



In the diagram above, the pink dot is located ___ to the orange dot. Answer: ventral



If a vertical blade is passed through ahead from one ear to the other, a ___ section of the brain will be
formed. Answer: coronal



The layer of blastula cells that develops into the nervous system is called the ___. Answer:
ectoderm



In humans, most of myelogenesis occurs ___. Answer: postnatally

, Neural proliferation involves neural stem cells located in the ___. Answer: ventricular zone



___ is an important type of programmed cell death. Answer: apoptosis



___ are supporting cells that guide the process of neuronal migration. Answer: radial glia



Describe the formation of the neural tube, with a focus on days 18 to 25 after human conception.
Answer: lecture objectives



Describe the seven stages of neural development. Answer: lecture objectives



Identify the major division and subdivision of the brain and the structures that make up each
subdivision. Answer: lecture objectives



Name the different division and subdivision of the nervous system. Answer: lecture objectives



Identify and use the anatomical terms employed to describe locations within the nervous system.
Answer: lecture objectives



Name and identify the three major planes used to make tissue sections of the CNS. Answer: lecture
objectives



Describe the pre- and postsynaptic events associated with synaptic transmission. Answer: lecture
objectives



Compare and contrast ionotropic and metabotropic receptors. Answer: lecture objectives

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