silent thyroid mascot cartoon style

anatomical anatomy arytenoid biology cartilage cartoon character cricoarytenoid cricothyroid cute diagnose emoticon emotion endocrine expression funny happy healthcare healthy hormone human hushed hyperthyroidism hypothyroidism illustration inflamed inflammation internal larynx mascot medical medicine mum mute organ parathyroid pharynx quiet reticent science secret sensitive silenced silent smile system thyreoidea thyroid trachea