Which of the Following Motor Units Would Allow for Greater

question 26

Multiple Choice

Which of the following motor units would allow for greater muscular control?

• A) a motor unit made up of a motor neuron and five muscle fibers.
• B) a motor unit made up of a motor neuron and ten muscle fibers.
• C) a motor unit made up of a motor neuron and twenty muscle fibers.
• D) a motor unit made up of a motor neuron and one hundred muscle fibers.
• E) a motor unit made up of a motor neuron and one thousand muscle fibers.

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Definitions:

Airway Reactivity

Airway reactivity describes the sensitivity of air passages in the lungs to various stimuli, often leading to constriction and breathing difficulties as seen in asthma.

Heimlich Maneuver

A first aid procedure used to treat upper airway obstructions (or choking) by foreign objects.

Airway Obstruction

A blockage in any part of the airway, which can lead to difficulty breathing and is considered a medical emergency.

Cystic Fibrosis

A genetic disorder that affects the lungs and other organs, characterized by thick, sticky mucus that can clog airways and harbor bacterial infections.