Parathyroid:Regulates calcium levels in the blood. Pancreas islets:Raises & lowers blood sugar; active in carbohydrate metabolism. Thymus gland:Plays a role in immune responses.Pineal gland:Has an influence on daily biorhythms & sexual active maity.Pituitary gland:Plays an important role in growth & development. Endocrine functions of the PancreasPancreas:Produces insulin & glucagonInsulin lowers glucose Insulin affects fat metabolism, & can change livers ability to store fat.Thyroid & Parathyroid glandsThyroid & parathyroid are located below larynx Thyroid gland:regulates metabolism & secretes hormonesUrinary System Consists of kidneys, urinary ducts, & bladder.Kidneys:bean-shaped structures located at the back of abdominal cavity oHas three layers:Renal cortex, renal medulla, & renal pelvis.oKidney receives blood from renal arteries.oKidneys filter the blood, reabsorb needed materials, secrete wastes & excess water in urine. oBlood flows from the renal arteries into arterioles into the glomerulus where its filtered. Glomerular filtrate enters the proximal convoluted tubule where water, glucose, ions, & other organic molecules are reabsorbed back into the bloodstream.