The<unk>  is a gland organ in the digestive and endocrine systems of vertebrates. It is both exocrine (secreting<unk> ic juice containing digestive enzymes) and endocrine (producing several important hormones, including insulin, glucagon, and somatostatin).
Pancreas
Spleen
Gallbladder
Adrenal cortex
Thyroid gland
Lymphatic tissues
Skeletal muscle
Pancreatin