Every One of Your Actions Arises from

question 27

Multiple Choice

Every one of your actions arises from

• A) neural impulses delivered from your sensory neurons to your brain.
• B) neural impulses from the brain delivered to your muscles.
• C) the imperatives of natural selection.
• D) the parallel nervous system.
• E) sympathetic nervous system activity.

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Definitions:

Goblet Cells

Epithelial cells that secrete mucus to lubricate surfaces such as the inside of the intestinal and respiratory tracts.

Tight Junction

A tightly sealed point of contact between two cells, preventing the passage of substances between the cells.

Plasma Membranes

A pair of lipid layers that forms a barrier around the cell's cytoplasm, controlling the import and export of cellular materials.

Adhesion Belt

A protein complex located just below the tight junctions in epithelial cells, contributing to the formation of an adhesive junction that holds cells together.