does anyone know the definition to the word

Question

a."extrinsic"
b."arousal"

Answer 1

extrinsic: not forming part of or belonging to a thing : extraneous b. originating from or on the outside especially originating outside a part and acting upon the part as a whole - ¡­ muscles of the tongue

arousal
1. 1to awaken from sleep

2. 2to rouse or stimulate to action or to physiological readiness for activity : excite - the book aroused debate

Answer 2

thanks so much since these words are in my G.C.S.E physical education work
once again thank you