Multiple choice The pancreas functioning as… A digestive exocrine gland A hormone-producing endocrine gland Part of digestive system All of them are correct Reveal answer Fill a bubble to check yourself D Correct answer Explanation The pancreas is a heterocrine (mixed) gland because it functions both as an endocrine gland (releasing insulin and glucagon) and an exocrine gland (releasing digestive enzymes into the digestive tract).