Final answer:
The correct name for the hormone feedback control loop is the Hypothalamic-Pituitary-Target Control Axis. The hypothalamus serves as the control center, and the pituitary gland is the effector which stimulates the target organs to produce the specific hormonal response.
Step-by-step explanation:
The proper name for the feedback control loop with hormones is the Hypothalamic-Pituitary-Target Control Axis (D). In this system, the stimulus typically refers to internal or environmental signals that require a hormonal response to maintain homeostasis. The control center of the system is the hypothalamus, which receives these stimuli and releases hormones that act on the pituitary gland.
The pituitary gland, in turn, is considered the effector in this system because it produces hormones that stimulate the target organs. These hormones then produce the desired effect on the body, such as altering metabolism, growth, or reproductive functions. The production of hormones such as thyroid-stimulating hormone (TSH) by the pituitary, for example, is regulated by a negative feedback loop involving the hypothalamus, pituitary gland, and the thyroid gland. When thyroid hormone levels are low, the hypothalamus signals the pituitary to release TSH, which then stimulates the thyroid to release more thyroid hormones. Elevated hormone levels eventually feed back to the hypothalamus and pituitary to reduce hormone production.