Lymphatic Capillaries

question 58

Multiple Choice

Lymphatic capillaries

• A)cannot be discerned structurally from cardiovascular system capillaries.
• B)originate as closed-ended tubes associated with blood capillary networks.
• C)filter lymph.
• D)concentrate lymph prior to passing it to larger lymphatic vessels.
• E)include layers of smooth muscle for peristalsis.

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Definitions:

Circle

A round plane figure, every point of which is equidistant from a fixed center point, defined by the equation (x-h)^2 + (y-k)^2 = r^2 in a coordinate plane.

Radius

The distance from the center of a circle to any point on its circumference.

Center

In geometry, the central point of a circle or sphere, equidistant from all points on the perimeter or surface.

Radius

A line segment from the center of a circle to any point on its circumference, or the length of this segment.