GLAND.Pineal gland is the smallest gland in the human body with a length of about 5-8 mm.It is located in the epithalamus, NEAR the center of the brain.The gland produces melatonin and serotonin and is, THEREFORE, responsible for modulating sleep patterns.Largest gland of the human body - LiverThe smallest exocrine gland - Goblet cell The pancreas has both an endocrine and an exocrine function.Apocrine sweat glands are usually ASSOCIATED with hair follicles, continuously secrete a fatty sweat into the gland tubule.The parotid gland is a bilateral SALIVARY gland located in the face.Ebner glands, also known as serous glands, are minor salivary glands located on both sides of your oral cavity toward the back of your tongue.