Question

The activity of many end organs is regulated by negative feedback. Figure 9-3A shows the basic elements of a homeostatic control system. Figure 9-3B shows a feedback loop with initiates it is declining T3 and T4 levels in the blood, which produces a drop in metabolic rate. Fill in the information missing in the boxes to correctly complete this feedback loop. Also indicate whether it is a negative or positive feedback loop.

Can someone help me right now please?

Answer 1

The information missing in the boxes to correctly complete this feedback loop about the feedback in thyroid hormone secretion will be

Change defected by hypothalamus

Secretes TSH

Acts on thyroid gland

This secretes thyroxine

It should be noted that parathyroid is the structure in the image. These glands, located behind the thyroid at the bottom of your neck, are about the size of a grain of rice.

The parathyroid hormone produced by the thyroid glands helps maintain the right balance of calcium in the bloodstream and in tissues that depend on calcium for proper functioning.