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Sympathetic and Parasympathetic Effects Quiz

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Sympathetic and Parasympathetic Effects Quiz

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Questions and Answers

What are the main clinical effects associated with the sympathetic and parasympathetic systems on the eye's effector organs?

Sympathetic: Relaxation of ciliary muscle, Contraction of iris radial muscle (mydriasis), Decreased aqueous humor production. Parasympathetic: Contraction of ciliary muscle, Contraction of the iris sphincter muscle (miosis). (correct)

Sympathetic: Relaxation of ciliary muscle, Contraction of the iris sphincter muscle (miosis), Decreased aqueous humor production. Parasympathetic: Relaxation of ciliary muscle, Contraction of iris radial muscle (mydriasis).

Sympathetic: Contraction of ciliary muscle, Contraction of the iris sphincter muscle (miosis), Decreased aqueous humor production. Parasympathetic: Relaxation of ciliary muscle, Contraction of iris radial muscle (mydriasis).

Sympathetic: Contraction of ciliary muscle, Contraction of the iris sphincter muscle (miosis), Decreased aqueous humor production. Parasympathetic: Contraction of ciliary muscle, Contraction of iris radial muscle (mydriasis).

What are the main clinical effects associated with the sympathetic and parasympathetic systems on the heart?

Sympathetic: Decreased HR (bradycardia, negative chronotropy), Decreased contractility (negative inotropy), Decreased AV node. Parasympathetic: Decreased HR (bradycardia, negative chronotropy), Decreased contractility (negative inotropy), Decreased AV node.

Sympathetic: Decreased HR (bradycardia, negative chronotropy), Decreased contractility (negative inotropy), Decreased AV node. Parasympathetic: Increased HR (tachycardia, positive chronotropy), Increased contractility (positive inotropy), Increase automaticity and conduction of AV node (positive dromotropy).

Sympathetic: Increased HR (tachycardia, positive chronotropy), Increased contractility (positive inotropy), Increase automaticity and conduction of AV node (positive dromotropy). Parasympathetic: Increased HR (tachycardia, positive chronotropy), Increased contractility (positive inotropy), Increase automaticity and conduction of AV node (positive dromotropy).

Sympathetic: Increased HR (tachycardia, positive chronotropy), Increased contractility (positive inotropy), Increase automaticity and conduction of AV node (positive dromotropy). Parasympathetic: Decreased HR (bradycardia, negative chronotropy), Decreased contractility (negative inotropy), Decreased AV node. (correct)

Which receptors are primarily involved in the sympathetic effects on the heart?

Beta-1 receptors (correct)

Alpha-1 receptors

M1 receptors

Beta-2 receptors

Which receptor is primarily involved in the parasympathetic effects on the heart?

<p>M1 receptors</p> Signup and view all the answers

Which effect is associated with sympathetic stimulation of Beta-2 receptors?

<p>Vasodilation and bronchodilation</p> Signup and view all the answers

Study Notes

Clinical Effects on the Eye's Effector Organs

Sympathetic system: dilates pupils (mydriasis), relaxes ciliary muscle (cycloplegia), and increases aqueous humor outflow
Parasympathetic system: constricts pupils (miosis), contracts ciliary muscle (accommodation), and decreases aqueous humor outflow

Clinical Effects on the Heart

Sympathetic system: increases heart rate, contracts heart muscle, and increases blood pressure
Parasympathetic system: decreases heart rate, relaxes heart muscle, and decreases blood pressure

Receptors Involved in Heart Effects

Sympathetic effects: primarily involve Beta-1 receptors
Parasympathetic effects: primarily involve M2 receptors

Sympathetic Stimulation of Beta-2 Receptors

Associated with relaxation of smooth muscle, including bronchodilation and vasodilation

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Description

Test your knowledge of the main clinical effects associated with the sympathetic and parasympathetic systems at effector organs in this quiz. Identify the effects of specific receptors and their impact on various body systems.