CSD 210 TEST QUESTIONS AND ANSWERS
LATEST UPDATE
A lesion in the occipital lobe would result in what deficits?
Visual
A lesion to the motor strip on the left side of the brain would cause problems with
what function?
movement on the right side of the body
The largest commissural fiber tract is the
corpus callosum
The cerebral cortex is ____ to the thalamus
superficial
the primary somatosensory area is the
parietal lobe
the major sensory relay structure in the brain is the
thalamus
the part of the neuron that carries impulses away from the cell body is the
axon
T/F the sympathetic nervous system restores homeostasis to the body by
conserving energy
False
T/F a group of cell bodies within the central nervous system is called a ganglion
False
The sulcus limitans marks the division of the basal and alar plates in the neural
tube. Functionally, derivative of the basal plate are ___ while derivatives of the
alar plate are ___
motor, sensory
the nervous system arises from which dermal layer
ectoderm
failure of the rostral neuropore to close during development results in which
condition
anencephaly
the glial cells responsible for production of cerebral spinal fluid are called
ependymal
the tearing of a meningeal artery would cause a
epidural hematoma
the thickest meningeal layer that is apposed directly to skull tissue
dura mater
the structure that connects the lateral ventricles to the third ventricle is the
interventricular foramen
T/F connective tissue, bones, and muscles develop from the mesoderm
true
, T/F your brain finishes myelinating at puberty
False
The membrane potential at rest is typically around ___ and is caused by ___
negative 70 millivolts, leaky K+ channels
Several small stimuli on a similar location produced a reflex when a single
stimulus did not. This led to the idea of ____ or that synaptic input from several
locations can have a cumulative effect and trigger a nerve impulse.
spatial summation
After an action potential, the membrane returns to its resting potential by:
sodium potassium pump
What kind of neuron would conduct an action potential w/ the fastest velocity?
large diameter, myelinated
which contributes to saltatory conduction?
oligodendrocytes
ion channels can be activated by
electrical activity, ligands, mechanical stimulation (all of the above)
T/F there is a greater concentration of potassium outside the neuronal cells as
compared to the inside of a neuronal cell
False
T/F neurons can have action potentials without synaptic input
True
When a neurotransmitter attaches to a receptor and initiates a sequence of
metabolic reactions that are slower and longer lasting this is called
metabotropic effects
an example of a monoamine neurotransmitter is:
serotonin, dopamine, norepinephrine (all of these are monoamines)
vesicles fuse to the membrane for release as a result of
Ca++ channels opening
Drugs work by:
Increasing the synthesis of neurotransmitters, increasing release of neurotransmitters,
decreasing reuptake of neurotransmitters, directly stimulation or blocking postsynaptic
receptors (all of the above)
these may open or close ion channels, alter production of activating proteins, or
activate chromosomes
second messengers
a drug that mimic the effect of a neurotransmitter is a(n)
agonist
these don't necessarily excite or inhibit a neuron, but alter the effects of other
neurotransmitters
peptides
T/F the action of a neurotransmitter can only be ended by reuptake of that
neurotransmitter back into the cell
False
T/F Glutamate is always an excitatory neurotransmitter
False
T/F Neurons can have action potentials without synaptic input
LATEST UPDATE
A lesion in the occipital lobe would result in what deficits?
Visual
A lesion to the motor strip on the left side of the brain would cause problems with
what function?
movement on the right side of the body
The largest commissural fiber tract is the
corpus callosum
The cerebral cortex is ____ to the thalamus
superficial
the primary somatosensory area is the
parietal lobe
the major sensory relay structure in the brain is the
thalamus
the part of the neuron that carries impulses away from the cell body is the
axon
T/F the sympathetic nervous system restores homeostasis to the body by
conserving energy
False
T/F a group of cell bodies within the central nervous system is called a ganglion
False
The sulcus limitans marks the division of the basal and alar plates in the neural
tube. Functionally, derivative of the basal plate are ___ while derivatives of the
alar plate are ___
motor, sensory
the nervous system arises from which dermal layer
ectoderm
failure of the rostral neuropore to close during development results in which
condition
anencephaly
the glial cells responsible for production of cerebral spinal fluid are called
ependymal
the tearing of a meningeal artery would cause a
epidural hematoma
the thickest meningeal layer that is apposed directly to skull tissue
dura mater
the structure that connects the lateral ventricles to the third ventricle is the
interventricular foramen
T/F connective tissue, bones, and muscles develop from the mesoderm
true
, T/F your brain finishes myelinating at puberty
False
The membrane potential at rest is typically around ___ and is caused by ___
negative 70 millivolts, leaky K+ channels
Several small stimuli on a similar location produced a reflex when a single
stimulus did not. This led to the idea of ____ or that synaptic input from several
locations can have a cumulative effect and trigger a nerve impulse.
spatial summation
After an action potential, the membrane returns to its resting potential by:
sodium potassium pump
What kind of neuron would conduct an action potential w/ the fastest velocity?
large diameter, myelinated
which contributes to saltatory conduction?
oligodendrocytes
ion channels can be activated by
electrical activity, ligands, mechanical stimulation (all of the above)
T/F there is a greater concentration of potassium outside the neuronal cells as
compared to the inside of a neuronal cell
False
T/F neurons can have action potentials without synaptic input
True
When a neurotransmitter attaches to a receptor and initiates a sequence of
metabolic reactions that are slower and longer lasting this is called
metabotropic effects
an example of a monoamine neurotransmitter is:
serotonin, dopamine, norepinephrine (all of these are monoamines)
vesicles fuse to the membrane for release as a result of
Ca++ channels opening
Drugs work by:
Increasing the synthesis of neurotransmitters, increasing release of neurotransmitters,
decreasing reuptake of neurotransmitters, directly stimulation or blocking postsynaptic
receptors (all of the above)
these may open or close ion channels, alter production of activating proteins, or
activate chromosomes
second messengers
a drug that mimic the effect of a neurotransmitter is a(n)
agonist
these don't necessarily excite or inhibit a neuron, but alter the effects of other
neurotransmitters
peptides
T/F the action of a neurotransmitter can only be ended by reuptake of that
neurotransmitter back into the cell
False
T/F Glutamate is always an excitatory neurotransmitter
False
T/F Neurons can have action potentials without synaptic input
