Y1S2 003 I Pharmacology Autonomic Nervous System: Functions and Regulation

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What is the effect of low dose epinephrine on blood pressure?

Decrease (correct)

Increase

First increase then decrease

Remain unchanged

Which receptor is responsible for the contraction of sphincters in the GIT?

α1 (correct)

β1

β2

α2

What is the effect of epinephrine on the uterus in pregnant women?

Variable response

No effect

Contraction

Relaxation (correct)

Why does high dose epinephrine cause a greater increase in blood pressure than low dose epinephrine?

Because of its effect on α1 receptors Signup and view all the answers

What is the effect of epinephrine on glycogenolysis?

Increase Signup and view all the answers

What is one of the clinical uses of epinephrine?

Treatment of acute asthma Signup and view all the answers

What is the primary function of the autonomic nervous system in relation to the heart?

Regulation of heart rate and force of contraction Signup and view all the answers

What is the response of the sympathetic nervous system often referred to as?

Fight, fright or flight response Signup and view all the answers

Which of the following receptors is mainly found on the heart, kidneys, and salivary glands?

β1 Signup and view all the answers

What is the function of Epinephrine/Adrenaline in the sympathetic nervous system?

A non-selective adrenergic (α and β) agonist Signup and view all the answers

What is the role of the parasympathetic nervous system in controlling heart rate and blood pressure?

Decreasing heart rate and blood pressure Signup and view all the answers

What is the term for the amount of blood pumped by the heart per minute?

Cardiac output Signup and view all the answers

What is the effect of Norepinephrine/Noradrenaline on alpha receptors on blood vessels?

Vasoconstriction Signup and view all the answers

What is the effect of Norepinephrine/Noradrenaline on beta 2 receptors?

No significant effect Signup and view all the answers

What is the primary effect of Norepinephrine/Noradrenaline on heart rate?

Increase Signup and view all the answers

What is the effect of Norepinephrine/Noradrenaline on blood pressure?

Increase Signup and view all the answers

What is the therapeutic use of Norepinephrine/Noradrenaline?

Hypotensive states Signup and view all the answers

What is the mechanism of inactivation of Epinephrine/Adrenaline?

Rapidly inactivated by MAO and COMT Signup and view all the answers

What is the effect of Propranolol on heart rate?

Decrease Signup and view all the answers

What is the therapeutic use of Propranolol?

All of the above Signup and view all the answers

What is the type of receptor that Acetylcholine binds to in the heart?

M2 Signup and view all the answers

What is the effect of the parasympathetic nervous system on blood vessels?

No effect Signup and view all the answers

What is the effect of M3 receptor stimulation on blood vessels?

Vasodilation Signup and view all the answers

What is the therapeutic use of acetylcholine in ophthalmic surgery?

Miotic Signup and view all the answers

What is the effect of atropine on the heart rate?

Increase in heart rate Signup and view all the answers

What is the duration of action of acetylcholine?

Short duration Signup and view all the answers

What is the effect of acetylcholine on smooth muscles?

Contraction Signup and view all the answers

What is the effect of atropine on the actions of acetylcholine?

Blocks the actions Signup and view all the answers

Y1S2 003 I Pharmacology Autonomic Nervous System: Functions and Regulation

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Questions and Answers

What is the effect of low dose epinephrine on blood pressure?

Which receptor is responsible for the contraction of sphincters in the GIT?

What is the effect of epinephrine on the uterus in pregnant women?

Why does high dose epinephrine cause a greater increase in blood pressure than low dose epinephrine?

What is the effect of epinephrine on glycogenolysis?

What is one of the clinical uses of epinephrine?

What is the primary function of the autonomic nervous system in relation to the heart?

What is the response of the sympathetic nervous system often referred to as?

Which of the following receptors is mainly found on the heart, kidneys, and salivary glands?

What is the function of Epinephrine/Adrenaline in the sympathetic nervous system?

What is the role of the parasympathetic nervous system in controlling heart rate and blood pressure?

What is the term for the amount of blood pumped by the heart per minute?

What is the effect of Norepinephrine/Noradrenaline on alpha receptors on blood vessels?

What is the effect of Norepinephrine/Noradrenaline on beta 2 receptors?

What is the primary effect of Norepinephrine/Noradrenaline on heart rate?

What is the effect of Norepinephrine/Noradrenaline on blood pressure?

What is the therapeutic use of Norepinephrine/Noradrenaline?

What is the mechanism of inactivation of Epinephrine/Adrenaline?

What is the effect of Propranolol on heart rate?

What is the therapeutic use of Propranolol?

What is the type of receptor that Acetylcholine binds to in the heart?

What is the effect of the parasympathetic nervous system on blood vessels?

What is the effect of M3 receptor stimulation on blood vessels?

What is the therapeutic use of acetylcholine in ophthalmic surgery?

What is the effect of atropine on the heart rate?

What is the duration of action of acetylcholine?

What is the effect of acetylcholine on smooth muscles?

What is the effect of atropine on the actions of acetylcholine?

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