PSB 3002 Exam 1 (CH 1- 5) Questions
and Answers
This method used to investigate brain functions involves over-stimulating neurons
and killing them by employing amino acids. - ANSWER-Excitotoxic lesion
Which measures utilize an extremely strong magnet? - ANSWER-All of these
One mechanism for the tolerance produced by repeated drug administration is a(n) -
ANSWER-reduced number of receptors for the drug
refers to an increased behavioral effect of a drug noted with repeated administration.
- ANSWER-Sensitization
Selective serotonin reuptake inhibitors (SSRIs) are - ANSWER-antagonists.
Where a drug acts in the cell would be a - ANSWER-site of action
Neil has accidentally ingested a toxic chemical, which has made him unconscious
and will soon kill him. Which route of administration would emergency physicians
most likely use to administer an antidote for the toxin? - ANSWER-intravenous
The ________ route of drug administration has the advantage of bypassing the
blood-brain barrier. - ANSWER-intracerebroventricular
If the therapeutic index of Drug X is low, physicians - ANSWER-should take more
care in prescribing it due to an increased chance of risks.
Dose response curves - ANSWER-demonstrate the effect of a particular dose until
the maximum effect is reached.
An important drawback to the ________ route is the high likelihood of accidental
overdose. - ANSWER-intravenous
A drug that activates a presynaptic autoreceptor will usually - ANSWER-reduce the
release of the neurotransmitter from the axon terminal.
The four hollow and interconnected spaces within the brain form the ______ and is
the location where _______ is/are produced. - ANSWER-ventricles / cerebrospinal
fluid (CSF)
If the axon of a newly developed neuron is unable to find a vacant postsynaptic cell,
it will experience apoptosis which - ANSWER-prunes away these unused neurons
and terminates the formation of new neurons within the developing brain.
, EDA/GSR can be used _________. - ANSWER-all of the these and many more
situations
Damage to the basal ganglia would be expected to produce difficulties in -
ANSWER-motor movements.
The term "rostral" means - ANSWER-toward the beak or snout.
A neuroscientist cuts a brain in half, along the division between the hemispheres.
This cut is referred to as a _____________ cut. - ANSWER-midsagittal
The right half of the brain controls the left half of the body. In order words, motor
control is - ANSWER-contralateral.
The parietal lobe would be considered ____________ to the temporal lobe. -
ANSWER-dorsal
A key function of the autonomic nervous system includes the control of -
ANSWER-"vegetative" processes.
The _______ is a tough protective sheath that covers the brain and that lies closest
to the skull. - ANSWER-dura mater
Movement of cargo from one end of the axon to the other involves _______ along
the _______. - ANSWER-axoplasmic transport/ microtubules
Proteins are produced within the neuron cytoplasm by - ANSWER-ribosomes
In order to cross the synapse between two cells, a substance called ___________ is
released from the first cell (pre-synapse) to activate or inhibit the second cell (post-
synapse). - ANSWER-a neurotransmitter
Most neurons contain the following components, ____________. (be sure that the
function of the components is correct as well) - ANSWER-axon to transmit neural
signals and the terminal buttons that release neurotransmitters across the synapse
as well as microtubules to transport material, dendrites to receive incoming neural
signals, and the soma which includes the nucleus and houses the DNA as well as
the mitochondria that extract energy and other structures
Sally's stomach begins to rumble, reminding her that she skipped breakfast this
morning. This hunger signal is sent to the brain, which is part of the __________
nervous system. - ANSWER-central
An action potential is an all or none process, how do neurons communicate
variations in stimulus intensity? - ANSWER-they produce differences in their firing
rate
_______ neurons gather information from the environment related to light, odors,
and contact of our skin with objects. - ANSWER-sensory
and Answers
This method used to investigate brain functions involves over-stimulating neurons
and killing them by employing amino acids. - ANSWER-Excitotoxic lesion
Which measures utilize an extremely strong magnet? - ANSWER-All of these
One mechanism for the tolerance produced by repeated drug administration is a(n) -
ANSWER-reduced number of receptors for the drug
refers to an increased behavioral effect of a drug noted with repeated administration.
- ANSWER-Sensitization
Selective serotonin reuptake inhibitors (SSRIs) are - ANSWER-antagonists.
Where a drug acts in the cell would be a - ANSWER-site of action
Neil has accidentally ingested a toxic chemical, which has made him unconscious
and will soon kill him. Which route of administration would emergency physicians
most likely use to administer an antidote for the toxin? - ANSWER-intravenous
The ________ route of drug administration has the advantage of bypassing the
blood-brain barrier. - ANSWER-intracerebroventricular
If the therapeutic index of Drug X is low, physicians - ANSWER-should take more
care in prescribing it due to an increased chance of risks.
Dose response curves - ANSWER-demonstrate the effect of a particular dose until
the maximum effect is reached.
An important drawback to the ________ route is the high likelihood of accidental
overdose. - ANSWER-intravenous
A drug that activates a presynaptic autoreceptor will usually - ANSWER-reduce the
release of the neurotransmitter from the axon terminal.
The four hollow and interconnected spaces within the brain form the ______ and is
the location where _______ is/are produced. - ANSWER-ventricles / cerebrospinal
fluid (CSF)
If the axon of a newly developed neuron is unable to find a vacant postsynaptic cell,
it will experience apoptosis which - ANSWER-prunes away these unused neurons
and terminates the formation of new neurons within the developing brain.
, EDA/GSR can be used _________. - ANSWER-all of the these and many more
situations
Damage to the basal ganglia would be expected to produce difficulties in -
ANSWER-motor movements.
The term "rostral" means - ANSWER-toward the beak or snout.
A neuroscientist cuts a brain in half, along the division between the hemispheres.
This cut is referred to as a _____________ cut. - ANSWER-midsagittal
The right half of the brain controls the left half of the body. In order words, motor
control is - ANSWER-contralateral.
The parietal lobe would be considered ____________ to the temporal lobe. -
ANSWER-dorsal
A key function of the autonomic nervous system includes the control of -
ANSWER-"vegetative" processes.
The _______ is a tough protective sheath that covers the brain and that lies closest
to the skull. - ANSWER-dura mater
Movement of cargo from one end of the axon to the other involves _______ along
the _______. - ANSWER-axoplasmic transport/ microtubules
Proteins are produced within the neuron cytoplasm by - ANSWER-ribosomes
In order to cross the synapse between two cells, a substance called ___________ is
released from the first cell (pre-synapse) to activate or inhibit the second cell (post-
synapse). - ANSWER-a neurotransmitter
Most neurons contain the following components, ____________. (be sure that the
function of the components is correct as well) - ANSWER-axon to transmit neural
signals and the terminal buttons that release neurotransmitters across the synapse
as well as microtubules to transport material, dendrites to receive incoming neural
signals, and the soma which includes the nucleus and houses the DNA as well as
the mitochondria that extract energy and other structures
Sally's stomach begins to rumble, reminding her that she skipped breakfast this
morning. This hunger signal is sent to the brain, which is part of the __________
nervous system. - ANSWER-central
An action potential is an all or none process, how do neurons communicate
variations in stimulus intensity? - ANSWER-they produce differences in their firing
rate
_______ neurons gather information from the environment related to light, odors,
and contact of our skin with objects. - ANSWER-sensory
