1 Cold sores later crust over with a scab and are usually associated with tingling, tenderness, or burning before the actual sores appear. 2  Mouth irritation. 3  The irritation can be caused by: 4  Biting your cheek, tongue, or lip. 5  Wearing braces or another type of dental apparatus, or having a sharp, broken tooth.
Main Image: The Pituitary gland is a pea-sized endocrine (hormone-producing) gland weighing about 0.5 g situated at the bottom of the skull sandwiched between the optic nerves, in humans. The pituitary gland secretes hormones. Hormones are chemicals that travel through the blood stream.
5. Get help from a doctor now âº. Endocrine gland: The adrenal glands sit on top of the kidneys and their main function is to make hormones. The adrenal glands make hormones in response to stress (cortisol, epinephrine), hormones that affect kidney function and blood pressure (aldosterone), and sex hormones (androgens).. Get help from a doctor now âº. Endocrine gland: The adrenal glands sit on top of the kidneys and their main function is to make hormones. The adrenal glands make hormones in response to stress (cortisol, epinephrine), hormones that affect kidney function and blood pressure (aldosterone), and sex hormones (androgens).