Which of the Following Is Correct Regarding Sympathetic Stimulation of the Heart

question 12

Multiple Choice

Which of the following is correct regarding sympathetic stimulation of the heart?

• A)Releases acetylcholine at the sympathetic endings
• B)Decreases sinus nodal discharge rate
• C)Decreases excitability of the heart
• D)Releases norepinephrine at the sympathetic endings
• E)Decreases cardiac contractility

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Definitions:

Back Weld

A welding technique where a weld is applied on the opposite side of a previously welded joint to ensure strength and integrity.

Backing Weld

A type of weld applied to the root of a joint for ensuring complete root penetration and to support molten weld metal.

Double-Groove Joint

A type of joint where two parallel grooves are made on each piece of material to be joined, typically used in welding for increased strength.

Joint Preparation

The process of preparing the edges of material pieces that are to be joined together, often by welding, to ensure a strong and clean join.