Estrogen receptors (and progesterone receptors) are found mainly in neurons in the anterior and mediobasal hypothalamus, notably: 1  the preoptic area (where LHRH neurons are located) 2  the periventricular nucleus (where somatostatin neurons are located) 3  the ventromedial hypothalamus (which is important for sexual behavior).
Wiktionary (0.00 / 0 votes) Rate this definition: crease (Noun) A line or mark made by folding or doubling any pliable substance; hence, a similar mark, however produced. crease (Noun) One of the white lines drawn on the pitch to show different areas of play; especially the popping crease, but also the bowling crease and the return crease. crease (Noun)
Marionette lines are a skin creases caused by a fixed line of internal ligamentous attachment to the skin from a deep muscle running down from the corner of the mouth. Bulging of the inner cheek tissues below the corner of the mouth onto this line of resistance exaggerates the depth of the crease.