Care of the Patient with an Endocrine Disorder OBQ 1. Select all that apply: Which of the following are true of endocrine glands: a. They are ductless b. They secrete through a series of ducts c. They release secretions directly into the bloodstream d. Their secretions are protective and functional 2. Hormones are secreted by the endocrine system. They work closely with which of the following systems? a. Reproductive System b. Circulatory System c. Integumentary System d. Nervous System e. Cardi...