Ordinarily, It Is Not Possible to Transplant Tissues from One

question 5

Multiple Choice

Ordinarily, it is not possible to transplant tissues from one person to another without rejection, yet corneas can be transplanted with impunity. This is because the cornea

• A) has no blood supply, except around the periphery.
• B) is exposed and easily accessible.
• C) has no nerve supply.
• D) is not a human structure.

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Definitions:

Metric Fits

The standard for sizes and tolerances in metric system used to determine suitable fits between mating components.

Internal Dimensions

Measurements within an object or space, referring to the inner limits or sizes of a cavity or enclosure.

External Dimensions

The measurable extent of an object's outer boundaries or surface size, including width, height, and depth.

F8/h7 Symbol

A code in engineering denoting a specific type of fit between two machined parts, with precisions defined by the letter and number.