Helium Is an Example of

question 46

Multiple Choice

Helium is an example of

• A) a homogeneous mixture
• B) a heterogeneous mixture
• C) a compound
• D) an element

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Definitions:

Vagus Nerve

The tenth cranial nerve, which innervates the heart, lungs, and digestive tract, thereby playing a significant role in controlling heart rate, gastrointestinal motility, and respiratory rate.

Parasympathetic Impulses

Nerve signals transmitted through the parasympathetic branch of the autonomic nervous system, generally working to conserve energy and restore the body to a state of calm.

Thoracic

Pertaining to the chest region, encompassing the area between the neck and abdomen and containing organs such as the heart and lungs.

Muscarinic Receptors

A type of acetylcholine receptor found on the surface of certain cells, playing important roles in the nervous system and other body systems.