pituitary in sweet romantic cupid cartoon drawing with arrow

adrenal adrenocorticotropin amour anatomy angel arrow biology cartoon character chemistry concentration corticotropin cortisol cupid cute education emoticon emotion endocrine endocrinologist endocrinology expression fly function funny happy hormonal hormone human hypothalamic hypothalamus illustration love mascot medical medicine norepinephrine pituitary romance science scientific secretion shoot smile structure system testosterone valentine vector wing