ANATOMY

Detailed explanation-1: -Insulin is secreted primarily in response to glucose, while other nutrients such as free fatty acids and amino acids can augment glucose-induced insulin secretion. In addition, various hormones, such as melatonin, estrogen, leptin, growth hormone, and glucagon like peptide-1 also regulate insulin secretion.

Detailed explanation-2: -Answer and Explanation: The correct answer: The statement that is true about the pancreas is B. Both glucagon and insulin are produced in the islets of Langerhans.

Detailed explanation-3: -Lactation is a hallmark feature of female mammals. Lactation is under endocrine control. The two main hormones involved are prolactin and oxytocin. Lactogenesis, or the process of changes to the mammary glands to begin producing milk, begins during the late stages of pregnancy.

Detailed explanation-4: -For instance, the pancreas secretes insulin, which allows the body to regulate levels of sugar in the blood.