Pharmacology Drugs - Adrenergic And Chloinergic

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Quizzes Created: 3 | Total Attempts: 2,726
Questions: 21 | Attempts: 925

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Pharmacology Drug Quizzes & Trivia


Questions and Answers
  • 1. 

    Butoxamine

    • A.

      M

    • B.

      N

    • C.

      Alpha 1

    • D.

      Alpha 2

    • E.

      Beta 1

    • F.

      Beta 2

    • G.

      Agonist Direct

    • H.

      Agonist Indirect

    • I.

      Antagonist

    Correct Answer(s)
    F. Beta 2
    I. Antagonist
    Explanation
    Butoxamine is a drug that acts as an antagonist at the beta 2 adrenergic receptors. This means that it binds to these receptors and blocks their activation by other substances, preventing their effects. Beta 2 receptors are primarily found in the smooth muscles of the bronchioles in the lungs, and their activation leads to relaxation of these muscles, resulting in bronchodilation. By acting as an antagonist at these receptors, butoxamine inhibits this relaxation and therefore has a bronchoconstrictive effect.

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  • 2. 

    Pilocarpine

    • A.

      M

    • B.

      N

    • C.

      Alpha 1

    • D.

      Alpha 2

    • E.

      Beta 1

    • F.

      Beta 2

    • G.

      Agonist Direct

    • H.

      Agonist Indirect

    • I.

      Antagonist

    Correct Answer(s)
    A. M
    G. Agonist Direct
    Explanation
    Pilocarpine is an agonist that directly stimulates the M receptor. The M receptor is a type of muscarinic receptor found in various tissues and organs in the body. When pilocarpine binds to the M receptor, it activates it, leading to various physiological responses. Therefore, the correct answer is M, Agonist Direct.

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  • 3. 

    Prazosin

    • A.

      M

    • B.

      N

    • C.

      Alpha 1

    • D.

      Alpha 2

    • E.

      Beta 1

    • F.

      Beta 2

    • G.

      Agonist Direct

    • H.

      Agonist Indirect

    • I.

      Antagonist

    Correct Answer(s)
    C. Alpha 1
    I. Antagonist
    Explanation
    Prazosin is a medication that acts as an antagonist of the alpha 1 adrenergic receptors. This means that it blocks the activity of these receptors, preventing the binding of norepinephrine and inhibiting its effects. By antagonizing the alpha 1 receptors, prazosin causes relaxation of smooth muscle in blood vessels, leading to vasodilation and a decrease in blood pressure.

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  • 4. 

    NE

    • A.

      M

    • B.

      N

    • C.

      Alpha 1

    • D.

      Alpha 2

    • E.

      Beta 1

    • F.

      Beta 2

    • G.

      Agonist Direct

    • H.

      Agonist Indirect

    • I.

      Antagonist

    Correct Answer(s)
    C. Alpha 1
    D. Alpha 2
    E. Beta 1
    G. Agonist Direct
    Explanation
    The correct answer includes the options Alpha 1, Alpha 2, Beta 1, and Agonist Direct. This suggests that these are the correct choices among the given options.

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  • 5. 

    Phenoxybenzamine

    • A.

      M

    • B.

      N

    • C.

      Alpha 1

    • D.

      Alpha 2

    • E.

      Beta 1

    • F.

      Beta 2

    • G.

      Agonist Direct

    • H.

      Agonist Indirect

    • I.

      Antagonist

    Correct Answer(s)
    C. Alpha 1
    I. Antagonist
    Explanation
    Phenoxybenzamine is an antagonist of the Alpha 1 adrenergic receptor. This means that it blocks the activity of the Alpha 1 receptor, preventing its activation by endogenous agonists such as norepinephrine. As an antagonist, phenoxybenzamine inhibits the effects mediated by the Alpha 1 receptor, which include vasoconstriction and smooth muscle contraction.

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  • 6. 

    Clonidine

    • A.

      M

    • B.

      N

    • C.

      Alpha 1

    • D.

      Alpha 2

    • E.

      Beta 1

    • F.

      Beta 2

    • G.

      Agonist Direct

    • H.

      Agonist Indirect

    • I.

      Antagonist

    Correct Answer(s)
    D. Alpha 2
    G. Agonist Direct
    Explanation
    Clonidine is an alpha 2 agonist, which means it directly stimulates the alpha 2 receptors in the body. This action leads to a decrease in sympathetic outflow from the central nervous system, resulting in a decrease in blood pressure. Clonidine does not have any significant activity on the alpha 1, beta 1, or beta 2 receptors.

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  • 7. 

    Cocaine

    • A.

      M

    • B.

      N

    • C.

      Alpha 1

    • D.

      Alpha 2

    • E.

      Beta 1

    • F.

      Beta 2

    • G.

      Agonist Direct

    • H.

      Agonist Indirect

    • I.

      Antagonist

    Correct Answer(s)
    C. Alpha 1
    D. Alpha 2
    E. Beta 1
    H. Agonist Indirect
  • 8. 

    Isoproterenol

    • A.

      M

    • B.

      N

    • C.

      Alpha 1

    • D.

      Alpha 2

    • E.

      Beta 1

    • F.

      Beta 2

    • G.

      Agonist Direct

    • H.

      Agonist Indirect

    • I.

      Antagonist

    Correct Answer(s)
    E. Beta 1
    F. Beta 2
    G. Agonist Direct
    Explanation
    Isoproterenol is a drug that acts as an agonist directly on the beta 1 and beta 2 adrenergic receptors. This means that it binds to and activates these receptors, leading to increased heart rate, bronchodilation, and vasodilation. Isoproterenol does not have any effect on the alpha 1 or alpha 2 adrenergic receptors, and it does not act as an indirect agonist or an antagonist.

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  • 9. 

    Timolol

    • A.

      M

    • B.

      N

    • C.

      Alpha 1

    • D.

      Alpha 2

    • E.

      Beta 1

    • F.

      Beta 2

    • G.

      Agonist Direct

    • H.

      Agonist Indirect

    • I.

      Antagonist

    Correct Answer(s)
    E. Beta 1
    F. Beta 2
    I. Antagonist
    Explanation
    Timolol is a medication that acts as an antagonist for both Beta 1 and Beta 2 receptors. This means that it blocks the effects of norepinephrine and epinephrine on these receptors, leading to a decrease in heart rate and blood pressure. By antagonizing these receptors, Timolol helps in the management of conditions such as hypertension and angina.

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  • 10. 

    D-Tubocurarine

    • A.

      M

    • B.

      Nn

    • C.

      Alpha 1

    • D.

      Alpha 2

    • E.

      Beta 1

    • F.

      Beta 2

    • G.

      Agonist Direct

    • H.

      Agonist Indirect

    • I.

      Antagonist

    • J.

      Nm

    Correct Answer(s)
    I. Antagonist
    J. Nm
    Explanation
    D-Tubocurarine is an antagonist that acts on the Nm receptor. This means that it blocks the action of acetylcholine at the Nm receptor, preventing muscle contraction. It does not directly stimulate or activate the receptor (agonist), nor does it enhance the action of acetylcholine at the receptor (agonist indirect). Instead, it opposes or inhibits the action of acetylcholine at the Nm receptor, making it an antagonist.

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  • 11. 

    Yohimbine

    • A.

      M

    • B.

      N

    • C.

      Alpha 1

    • D.

      Alpha 2

    • E.

      Beta 1

    • F.

      Beta 2

    • G.

      Agonist Direct

    • H.

      Agonist Indirect

    • I.

      Antagonist

    Correct Answer(s)
    D. Alpha 2
    I. Antagonist
    Explanation
    Yohimbine is an antagonist of the Alpha 2 receptors. This means that it blocks the activity of these receptors, preventing them from being activated by other substances. Alpha 2 receptors are found in various tissues and organs in the body and play a role in regulating blood pressure, neurotransmitter release, and other physiological processes. By antagonizing the Alpha 2 receptors, yohimbine can have effects such as increasing blood pressure and promoting the release of certain neurotransmitters.

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  • 12. 

    Bethanechol

    • A.

      M

    • B.

      N

    • C.

      Alpha 1

    • D.

      Alpha 2

    • E.

      Beta 1

    • F.

      Beta 2

    • G.

      Agonist Direct

    • H.

      Agonist Indirect

    • I.

      Antagonist

    Correct Answer(s)
    A. M
    G. Agonist Direct
    Explanation
    Bethanechol is classified as an agonist direct. Agonist direct drugs directly stimulate specific receptors in the body, in this case, the M receptors. This means that Bethanechol activates and mimics the effects of the M receptors, leading to increased smooth muscle contraction and improved bladder emptying. As an agonist direct, Bethanechol directly binds to the M receptors, activating them and producing the desired effects.

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  • 13. 

    Bethanechol

    • A.

      M

    • B.

      N

    • C.

      Alpha 1

    • D.

      Alpha 2

    • E.

      Beta 1

    • F.

      Beta 2

    • G.

      Agonist Direct

    • H.

      Agonist Indirect

    • I.

      Antagonist

    Correct Answer(s)
    A. M
    G. Agonist Direct
    Explanation
    Bethanechol is classified as an M agonist direct. This means that it directly activates M receptors in the body. M receptors are a type of muscarinic receptor, which are found in various tissues and organs including the smooth muscles of the bladder. By activating M receptors, bethanechol promotes bladder contraction and increases urinary output. This makes it useful in treating urinary retention and other bladder-related conditions.

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  • 14. 

    Physostigmine

    • A.

      M

    • B.

      N

    • C.

      Alpha 1

    • D.

      Alpha 2

    • E.

      Beta 1

    • F.

      Beta 2

    • G.

      Agonist Direct

    • H.

      Agonist Indirect

    • I.

      Antagonist

    Correct Answer(s)
    A. M
    B. N
    H. Agonist Indirect
    Explanation
    Physostigmine is a drug that acts as an indirect agonist on both M and N receptors. This means that it enhances the activity of these receptors, leading to increased neurotransmitter release and stimulation of the associated physiological responses. As an indirect agonist, physostigmine does not directly bind to the receptors but instead increases the availability or prolongs the action of the neurotransmitter that activates them. It does not have any antagonistic effects on any of the listed receptors.

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  • 15. 

    Metoprolol

    • A.

      M

    • B.

      N

    • C.

      Alpha 1

    • D.

      Alpha 2

    • E.

      Beta 1

    • F.

      Beta 2

    • G.

      Agonist Direct

    • H.

      Agonist Indirect

    • I.

      Antagonist

    Correct Answer(s)
    E. Beta 1
    I. Antagonist
    Explanation
    Metoprolol is a medication that acts as a beta-1 antagonist. Beta-1 receptors are found primarily in the heart and blocking them reduces the effects of adrenaline and noradrenaline on the heart. This leads to a decrease in heart rate, blood pressure, and cardiac output, making metoprolol commonly used to treat conditions such as hypertension, angina, and heart failure. By acting as an antagonist at the beta-1 receptors, metoprolol competes with and blocks the binding of adrenaline and noradrenaline, thereby reducing their stimulatory effects on the heart.

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  • 16. 

    Atropine

    • A.

      M

    • B.

      N

    • C.

      Alpha 1

    • D.

      Alpha 2

    • E.

      Beta 1

    • F.

      Beta 2

    • G.

      Agonist Direct

    • H.

      Agonist Indirect

    • I.

      Antagonist

    Correct Answer(s)
    A. M
    I. Antagonist
    Explanation
    Atropine is classified as an antagonist. Antagonists are drugs that bind to receptors in the body and block their activity, preventing the natural substances from activating those receptors. In the given options, Atropine does not act as an agonist (direct or indirect) on any of the listed receptors (Alpha 1, Alpha 2, Beta 1, Beta 2). Instead, it opposes the effects of the natural substances that would normally activate these receptors, making it an antagonist.

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  • 17. 

    Muscarine

    • A.

      M

    • B.

      N

    • C.

      Alpha 1

    • D.

      Alpha 2

    • E.

      Beta 1

    • F.

      Beta 2

    • G.

      Agonist Direct

    • H.

      Agonist Indirect

    • I.

      Antagonist

    Correct Answer(s)
    A. M
    G. Agonist Direct
    Explanation
    Muscarine is classified as an agonist direct based on the given options. An agonist direct is a substance that directly activates a receptor and produces a biological response. In this case, muscarine directly activates the M receptor, which is a type of muscarinic acetylcholine receptor. This activation leads to various physiological effects, such as increased glandular secretions, smooth muscle contraction, and decreased heart rate. Therefore, muscarine acts as an agonist direct on the M receptor.

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  • 18. 

    Echothiophate

    • A.

      M

    • B.

      N

    • C.

      Alpha 1

    • D.

      Alpha 2

    • E.

      Beta 1

    • F.

      Beta 2

    • G.

      Agonist Direct

    • H.

      Agonist Indirect

    • I.

      Antagonist

    Correct Answer(s)
    A. M
    B. N
    H. Agonist Indirect
    Explanation
    Echothiophate is a medication that acts as an indirect agonist on both the alpha 1 and alpha 2 receptors. It does not have any effect on the beta 1 or beta 2 receptors. Therefore, the correct answer is M, N, and Agonist Indirect.

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  • 19. 

    _____causes increased secretion from ciliary epithelium in the eye, as well as, pupil constriction and increased urination.

    Correct Answer(s)
    Prazosin, Phenoxybenzamine
    Phenoxybenzamine, Prazosin
    Explanation
    Prazosin causes increased secretion from ciliary epithelium in the eye, as well as pupil constriction and increased urination. Phenoxybenzamine also causes similar effects on the ciliary epithelium, pupil constriction, and increased urination. Therefore, both drugs can cause these physiological responses.

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  • 20. 

    _____causes increased heart rate, as well as, bronchodilation and urinary retention

    Correct Answer(s)
    Isoproterenol
    Explanation
    Isoproterenol is a medication that belongs to the class of drugs known as beta-adrenergic agonists. It acts on beta-adrenergic receptors in the body, specifically the beta-1 and beta-2 receptors. Activation of these receptors leads to increased heart rate (positive chronotropic effect), bronchodilation (relaxation of the smooth muscles in the airways), and urinary retention (relaxation of the smooth muscles in the bladder). Therefore, isoproterenol causes these effects by stimulating the beta-adrenergic receptors in the body.

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  • 21. 

    _____ causes decreased heart rate, increased gastric motility, increased gastric secretion and vasodilation

    Correct Answer(s)
    Muscarine, Ach, Pilocarpine, Bethanochol
    Ach, Muscarine, Pilocarpine, Bethanochol
    Pilocarpine, Muscarine, Bethanochol, Ach
    Bethanochol, Pilocarpine, Ach, Muscarine
    Explanation
    Muscarine, Ach, Pilocarpine, and Bethanochol all belong to a class of drugs known as muscarinic agonists. These drugs activate muscarinic receptors in the body, leading to various physiological effects. Activation of muscarinic receptors in the heart causes a decrease in heart rate. Activation of muscarinic receptors in the gastrointestinal tract leads to increased gastric motility and secretion. Finally, activation of muscarinic receptors in blood vessels causes vasodilation. Therefore, all of the listed drugs can cause these effects.

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  • Current Version
  • Mar 22, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Feb 24, 2011
    Quiz Created by
    Lvdb
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