Lpn Pre Entrance Exam - Science

exocrine glands {Ans: Glands that produce a secretion carried by a duct or tube. Digestive and tear glands}acetylcholine {Ans: A critical neurotransmitter that controls functions such as memory, attention, sleep, heart rate, and muscular activity.}photoreceptor cells {Ans: transmit information along the optic nerve to the brain}arthropod {Ans: Insects, arachnids, crustaceans; segmented bodies; paired, jointed legs; chitinous exoskeleton; open circulatory system; dorsal heart}catalyst {Ans: something that brings about a change in something else}reflection {Ans: The bouncing back of a wave when it hits a surface through which it cannot pass.}