PSYC 3310: Lecture 01-06 Questions And Answers Assessment 2024/2025
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Grado
PSYC 3310
Institución
Texas Tech University
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...
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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