The Electrical Signal for a Muscle to Contract Passes Rapidly

question 2

Multiple Choice

The electrical signal for a muscle to contract passes rapidly from one cell to the next via

• A) internal proteins.
• B) gap junctions.
• C) plasmodesmata.
• D) desmosomes.
• E) tight junctions.

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Definitions:

Hypoxia

A lack of oxygen.

Pulmonary Fibrosis

A lung disease that occurs when lung tissue becomes damaged and scarred, leading to severe breathing difficulties.

Chronic Pulmonary Histoplasmosis

A long-term fungal infection of the lungs that can mimic tuberculosis, caused by inhaling spores of the fungus Histoplasma capsulatum.

Pleurisy

An inflammation of the pleura, the membrane surrounding the lungs, causing sharp chest pain with breathing.