| Burn and Rand theory | That stimulation of sympathetic fibres results first in the production of acetylcholine in the postganglionic nerve endings, which then release norepinephrine to act on the active site of the effector cell. (05 Mar 2000) |
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| Rand, Gertrude | <person> U.S. Visual psychologist, 1886-1970. See: Hardy-Rand-Ritter test. (05 Mar 2000) |
| Rand, M | <person> See: Burn and Rand theory. (05 Mar 2000) |
| Hardy-Rand-Ritter test | A test for colour vision deficiency using pseudoisochromatic cards. These excellent cards have not been reprinted by the American Optical Co. Since the plates were accidentally destroyed in 1965. (05 Mar 2000) |
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