If a neuron has GABAA receptors postsynaptically, how will a sudden administration of ethanol affect that...
If a neuron has GABAA receptors postsynaptically, how will a sudden administration of ethanol affect that neuron? Explain briefly and include the following 4 kinds of effects: the likely action at the GABAA receptors (increased or decreased activity?); ion flow (Cl- or Na+ influx or efflux?); IPSPs or EPSPs; and hyperpolarization or depolarization of the neuron membrane.
Homework Answers
The GABAA receptors are responsible for rapid neuronal transmission in the mammalian CNS. They occur in the postsynaptic membrane. The effects of ethanol on proteins in the CNS are complex suggests that it appears that ligand-gated ion channels and voltage-gated calcium channels are important targets for this drug because their function, type and numbers are altered by short- and long-term exposure to ethanol. It mimics GABA's effect in the brain thereby binding to GABA receptors and inhibiting neuronal signalling, major excitatory neurotransmitter, glutamate, particularly at the N-methyl-d-aspartate (NMDA) glutamate receptor.
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If a neuron has GABAA receptors postsynaptically, how
will a sudden administration of ethanol affect that...
all of them please Question z pus Action potential. How is the cell membrane able to...
all of them please
Question z pus Action potential. How is the cell membrane able to repolarize back to rest? influx of Na+ currents efflux of K+ currents influx of K+ currents efflux of Na+ currents Question 6 2 pts Neurons that convey motor commands to the bladder are visceral motor somatic motor visceral sensory somatic sensory Question 7 2 pts Action potential. During hyperpolarization the cell membrane is in a state of relative refractory period. the cell membrane is...
The right answer is (D) Please explain. I don't understand how K+ could be effluxing rather...
The right answer is (D)
Please explain. I don't understand how K+ could be effluxing rather
than influxing
Passage IV (Questions 114-117) Electrical impubses are transferred from one neuron to another via a synapse. Synapses can be electrical or chemical. In response to an electrical stimalus such as an action potential the presynaptic neuron in a chemical synapse releases a neuro- transmitner across a small space between the two neurons known as a symaptic cief. Neurotransmitiers may have excita- ory...
INFORMATION ABOUT IMAGE G FOR QUESTIONS 12-15: GABAB receptors (GABABRs) are G-protein-coupled receptors that can be...
INFORMATION ABOUT IMAGE G FOR QUESTIONS 12-15:
GABAB receptors (GABABRs) are
G-protein-coupled receptors that can be found on both pre- and
postsynaptic neurons. When they are activated by GABA, they can
have a range of effects. For the synapse you are studying in the
following questions, the effects of GABABRs are
indicated in IMAGE G.
You are doing a series of experiments in which you are recording
from the pre- and postsynaptic cell at a synapse. The experiments
described below...
Cell # 1 forms an excitatory synapse onto cell # 2 , when cell #1 fires a single action potential...
Cell # 1 forms an excitatory synapse onto cell # 2 , when cell #1 fires a single action potential it releases glutamate onto the membrane of cell #2 resulting in a 5 millivolt depolarization, a 5 mV excitatory postsynaptic potential, when cell #1 fires three action potentials in rapid succession this causes a 15 mV depolarization in cell #2 resulting in cell #2 reaching threshold and firing its own action potential. Cell #1 Cell #2 +40 Vm IN Cell...
KEY TERMS March the numbered form with the definition that is it be definition the responding...
KEY TERMS March the numbered form with the definition that is it be definition the responding sumber in front of the appropriate 40. excitatory postsynaptic potential 21. resting potential 22 on leakage channels 23. equilibrium potential -24 graded potential 25. gated ion channels 26. depolarization 27. hyperpolarization Sensory neurons 2. central nervous system 3. motor neurons 4. intercurons 5. peripheral nervous system 6. somatic motor neurons *7. autonomic motor neurons 8. sympathetic 9. parasympathetic 10. cell body all dendrites 12....
change pas channels in the volta t ive protein to change shape. This A of the...
change pas channels in the volta t ive protein to change shape. This A of the S l e terminal siste oplasmic reticum calcio p r eneule warcoplasm reticulum sodium ions m o nster transverse tubules sarcolemma: calcium ions Saroplasmic reticum: triadsarcolemma: calcium ions sons bind to This causes a change in shape and exposing C D E Calcium vesicle tylcholine action potential Sodium sarcolemma calcium on myosin heads Sodium sacoplasmic reticulum calcium ions actin 15. An attaches to exposed...
1. Oral acetaminophen has been ordered for a young child who has a fever. A liquid...
1. Oral acetaminophen has been ordered for a young child who has a fever. A liquid form has been obtained by the nurse to increase the chance of problem free administration. Prior to administration, the nurse is going through the rights of medication administration. When confirming the right dose, what term is the most appropriate? a. "160 mg" b. "one teaspoon" c. "one third of a tablespoon d. "SmL 2. A pregnant woman asks why she needs to take a...
Mrs. K.B. is age 64 and has been a patient of yours for many years. You...
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1. According to the paper, what does lactate dehydrogenase (LDH) do and what does it allow...
1. According to the paper, what does lactate dehydrogenase
(LDH) do and what does it allow to happen within the myofiber? (5
points)
2. According to the paper, what is the major disadvantage of
relying on glycolysis during high-intensity exercise? (5
points)
3. Using Figure 1 in the paper, briefly describe the different
sources of ATP production at 50% versus 90% AND explain whether you
believe this depiction of ATP production applies to a Type IIX
myofiber in a human....
1. Which of the following are the sites within the human body where carbon dioxide and...
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all of them please
Question z pus Action potential. How is the cell membrane able to repolarize back to rest? influx of Na+ currents efflux of K+ currents influx of K+ currents efflux of Na+ currents Question 6 2 pts Neurons that convey motor commands to the bladder are visceral motor somatic motor visceral sensory somatic sensory Question 7 2 pts Action potential. During hyperpolarization the cell membrane is in a state of relative refractory period. the cell membrane is...
The right answer is (D)
Please explain. I don't understand how K+ could be effluxing rather
than influxing
Passage IV (Questions 114-117) Electrical impubses are transferred from one neuron to another via a synapse. Synapses can be electrical or chemical. In response to an electrical stimalus such as an action potential the presynaptic neuron in a chemical synapse releases a neuro- transmitner across a small space between the two neurons known as a symaptic cief. Neurotransmitiers may have excita- ory...
INFORMATION ABOUT IMAGE G FOR QUESTIONS 12-15:
GABAB receptors (GABABRs) are
G-protein-coupled receptors that can be found on both pre- and
postsynaptic neurons. When they are activated by GABA, they can
have a range of effects. For the synapse you are studying in the
following questions, the effects of GABABRs are
indicated in IMAGE G.
You are doing a series of experiments in which you are recording
from the pre- and postsynaptic cell at a synapse. The experiments
described below...
Cell # 1 forms an excitatory synapse onto cell # 2 , when cell #1 fires a single action potential it releases glutamate onto the membrane of cell #2 resulting in a 5 millivolt depolarization, a 5 mV excitatory postsynaptic potential, when cell #1 fires three action potentials in rapid succession this causes a 15 mV depolarization in cell #2 resulting in cell #2 reaching threshold and firing its own action potential. Cell #1 Cell #2 +40 Vm IN Cell...
KEY TERMS March the numbered form with the definition that is it be definition the responding sumber in front of the appropriate 40. excitatory postsynaptic potential 21. resting potential 22 on leakage channels 23. equilibrium potential -24 graded potential 25. gated ion channels 26. depolarization 27. hyperpolarization Sensory neurons 2. central nervous system 3. motor neurons 4. intercurons 5. peripheral nervous system 6. somatic motor neurons *7. autonomic motor neurons 8. sympathetic 9. parasympathetic 10. cell body all dendrites 12....
change pas channels in the volta t ive protein to change shape. This A of the S l e terminal siste oplasmic reticum calcio p r eneule warcoplasm reticulum sodium ions m o nster transverse tubules sarcolemma: calcium ions Saroplasmic reticum: triadsarcolemma: calcium ions sons bind to This causes a change in shape and exposing C D E Calcium vesicle tylcholine action potential Sodium sarcolemma calcium on myosin heads Sodium sacoplasmic reticulum calcium ions actin 15. An attaches to exposed...
1. Oral acetaminophen has been ordered for a young child who has a fever. A liquid form has been obtained by the nurse to increase the chance of problem free administration. Prior to administration, the nurse is going through the rights of medication administration. When confirming the right dose, what term is the most appropriate? a. "160 mg" b. "one teaspoon" c. "one third of a tablespoon d. "SmL 2. A pregnant woman asks why she needs to take a...
1. According to the paper, what does lactate dehydrogenase
(LDH) do and what does it allow to happen within the myofiber? (5
points)
2. According to the paper, what is the major disadvantage of
relying on glycolysis during high-intensity exercise? (5
points)
3. Using Figure 1 in the paper, briefly describe the different
sources of ATP production at 50% versus 90% AND explain whether you
believe this depiction of ATP production applies to a Type IIX
myofiber in a human....
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