A Lesion at a Particular Level of the Spinal Cord

question 14

Multiple Choice

A lesion at a particular level of the spinal cord:

• A)can impair function at the level of the lesion and below
• B)impairs function at the level of the lesion only
• C)impairs function at the level of the lesion and above
• D)impairs movement,but not sensation

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Definitions:

Cilium

One of many short, hairlike structures that project from the surface of some eukaryotic cells and are used for locomotion or movement of materials across the cell surface.

Cytoskeleton

The dynamic internal network of protein fibers that includes microfilaments, intermediate filaments, and microtubules.

Microtubules

Cylindrical structures found in cells, made of tubulin, that play roles in cell shape, organization, and movement.

Middle Lamella

The layer composed of pectin polysaccharides that serves to cement together the primary cell walls of adjacent plant cells.