(5) Neuro SLO Flashcards
Biogenic amines include ACh, NE, EPI and __?__
A. Melatonin
B. Dopamine
C. Serotonin
D. Histamine
E. All of the neurotransmitters listed are biogenic amines.
Melatonin, Dopamine, Serotonin, Histamine - ALL
Catecholamines are hormones produced by the adrenal medulla. They include NE, EPI and \_\_?\_\_. A. Histamine B. Acetylcholine C. Serotonin D. Melatonin E. Dopamine
Dopamine
If a neuron is in the Sympathetic Nervous System, it is (has) __?__
A. All the answers are correct.
B. Mostly adrenergic receptors.
C. Coming from the ventral surface of the medulla in the brain stem.
D. Part of the “flight or fight” component of the ANS.
E. Not generally under conscious control.
Not generally under conscious control, Part of the “flight or fight” component of the ANS, Coming from the ventral surface of the medulla in the brain stem, Mostly adrenergic receptors - ALL
If a neuron is part of the Autonomic Nervous System, it is in that part of the peripheral nervous system that is __?__.
A. Controlled by conscious thought.
B. In control of skeletal muscle.
C. In the spinal cord only.
D. Not generally under conscious control.
E. In the brain.
Not generally under conscious control.
If a neuron is part of the Parasympathetic Nervous System, it is/has __?__.
A. Muscarinic receptors.
B. Part of the “rest and digest” aspects of the ANS.
C. Not generally under conscious control.
D. Originates in the brain stem mostly with cranial nerve X (the Vagus)
E. All of the answers are correct.
Muscarinic receptors, Part of the “rest and digest” aspects of the ANS, Not generally under conscious control, Originates in the brain stem mostly with cranial nerve X (the Vagus) - ALL
If it is “Adrenergic,” it is a(n) __?__
A. Sympathetic end organ receptor, either alpha or beta
B. ACh receptors, which may be in the CNS or PNS. In the PNS, they are in the somatic NMJ and in ANS ganglion
C. Receptors located in autonomic ganglia and at the parasympathetic end organ, on a few sympathetic end organs and on many non-enervated cells.
D. Connection point between the somatic motor neuron and the skeletal muscle. The somatic neuron releases ACh, which diffuses across junction (gap) and binds to the receptor on skeletal muscle. This triggers the opening of an ion channel, which depolarizes the skeletal muscle and results in muscle contraction.
E. ACh receptors. Very wide distribution, not all are enervated. Enervated receptors are located in the CNS or PNS. In the PNS, they are at all PSNS end organs, and in the SNS in a few very important locations (SWEAT GLANDS).
Sympathetic end organ receptor, either alpha or beta
If it is “Cholinergic,” it is a(n) __?__
A. ACh receptor, which may be in the CNS or PNS.
B. NE receptor located in the sympathetic nervous system.
C. Nuclear receptor, which generally modulate gene function.
D. Sympathetic end organ receptor, either alpha or beta.
E. Ion channel that is opened by depolarization of the cell membrane.
ACh receptor, which may be in the CNS or PNS.
Mirtazapine (Remeron) is an antidepressant that affects a number of CNS receptors including the 5-HT3 receptor. Mirtazapine inhibits the 5-HT3 receptors found on the CTZ, so you would expect Mirtazapine to be \_\_\_ ? \_\_\_\_. A. Antiemetic like scopolamine B. Antimigraine like sumatriptan C. Antiemetic like haloperidol D. Anxiolytic like buspirone E. Antiemetic like ondansetron
Antiemetic like Ondansetron (Zofran)
Olanzapine (Zyprexa) is an atypical antipsychotic that affects a number of CNS receptors including the 5-HT3 receptor. Olanzapine inhibits the 5-HT3 receptors found on the CTZ, so you would expect Olanzapine to be antiemetic like \_\_\_\_. A. Diphenhydramine B. Aprepitant C. Scopolamine D. Haloperidol E. Ondansetron
Ondansetron (Zofran)
The Muscarinic receptors are __?__
A. Receptors located in autonomic ganglia (for feedback inhibition) and at the parasympathetic end organ, on a few sympathetic end organs and on many non-enervated cells.
B. Nuclear receptors, which are simply Ligand receptors located on the cell nucleus and which generally modulate gene function
C. ACh receptors with a very wide distribution, and not all are enervated. Enervated receptors are located in the CNS or PNS. In the PNS, they are at all PSNS end organs, and in the SNS in a few very important locations (SWEAT GLANDS)
D. ACh receptors, which may be in the CNS or PNS. In the PNS, they are in the somatic NMJ and in ANS ganglion
E. Sympathetic end organ receptors, either alpha or beta
Receptors located in autonomic ganglia (for feedback inhibition) and at the parasympathetic end organ, on a few sympathetic end organs and on many non-enervated cells.
The Neuromuscular Junction (NMJ) is the __?__
A. ACh receptors with a very wide distribution, and not all are enervated. Enervated receptors are located in the CNS or PNS. In the PNS, they are at all PSNS end organs, and in the SNS in a few very important locations (SWEAT GLANDS).
B. Connection point between the somatic motor neuron and the skeletal muscle. The somatic neuron releases ACh, which diffuses across junction (gap) and binds to the receptor on skeletal muscle. This triggers the opening of an ion channel, which depolarizes the skeletal muscle and results in muscle contraction.
C. Receptor type located in autonomic ganglia and at the parasympathetic end organ, on a few sympathetic end organs and on many non-enervated cells.
D. Sympathetic end organ receptor, either alpha or beta
E. None of the listed answers is correct.
Connection point between the somatic motor neuron and the skeletal muscle. The somatic neuron releases ACh, which diffuses across junction (gap) and binds to the receptor on skeletal muscle. This triggers the opening of an ion channel, which depolarizes the skeletal muscle and results in muscle contraction.
The Nicotinic receptors are __?_
A. ACh receptors, which may be in the CNS or PNS. In the PNS, they are in the somatic NMJ and in ANS ganglion
B. ACh receptors with a very wide distribution, and not all are enervated. Enervated receptors are located in the CNS or PNS. In the PNS, they are at all PSNS end organs, and in the SNS in a few very important locations (SWEAT GLANDS).
C. Receptors located in autonomic ganglia and at the parasympathetic end organ, on a few sympathetic end organs and on many non-enervated cells.
D. Complicated receptors that are activated by the binding of a Ligand that triggers the activation of a second messenger system that then proceeds to carry out various tasks, which may include opening an ion channel, activating genes for protein synthesis or turning off processes within the cell.
E. Sympathetic end organ receptors, either alpha or beta
ACh receptors, which may be in the CNS or PNS. In the PNS, they are in the somatic NMJ and in ANS ganglion
Which Agonizes the 5-HT1A receptor? It is a non-sedating anxiolytic. A. Sumatriptan B. Fluoxetine C. Ondansetron D. Trazodone E. Buspirone
Buspirone (Buspar)
Which Agonizes the 5-HT1D receptor? It is used to treat migraine. A. Fluoxetine (Prozac) B. Sumatriptan (Imitrex) C. Ondansetron (Zofran) D. Buspirone (Buspar) E. Trazodone (Desyrel)
Sumatriptan (Imitrex)
Which blocks adenosine (purine) receptors?
A. None of the drugs listed block adenosine receptors.
B. Theophylline
C. Aminophylline
D. Caffeine (in coffee, for instance)
E. All of the drugs listed block adenosine receptors.
Caffeine (in coffee, for instance), Theophylline, Aminophylline - ALL
Which blocks dopamine-2 (D2) receptors in the CNS? Because there are D2 receptors on the Chemoreceptor Trigger Zone (CTZ), the part of your brain that detects information in the blood about toxicants, many of these drugs are also anti emetics.
A. Opioids like morphine
B. Antihypertensives like clonidine (Catapres)
C. Antidepressants like fluoxetine (Prozac)
D. Antipsychotics like haloperidol (Haldol)
E. Amphetamines, like dextroamphetamine
Antipsychotics like haloperidol (Haldol)
Which blocks the 5-HT2 receptors? Is is used mostly as an antidepressant. A. Sumatriptan B. Ondansetron C. Buspirone D. Trazodone E. Fluoxetine
Trazodone (Desyrel, Oleptro)
Which inhibits monoamine oxidase? It was the first transdermal patch antidepressant and is used to treat Parkinson's disease and senile dementia. A. Fluoxetine B. Selegiline C. Venlafaxine D. Amphetamines E. Donepezil
Selegiline (Carbex, Eldepryl, Emsam, Zelapar)