How does the anterior pituitary regulate the thyroid gland?

Answer 1

The hypothalmus is connected to the pituitary by the hypophyseal portal system. This is a network of capillary beds that allows the hypothalmus to control the release of hormones from the anterior and posterior pituitary
The two pituitary lobes are the dual origin of the hypothalmus. The posterior pituitary lobe is part of the brain and is a "downgrowth" of hypothalmic tissue and maintains a neural connection with the hypothalmus through a nerve bundle called the hypothalamic-hypophyseal tract. This arises from neurons of the hypothalmus. These cells synthesize two neurohormones and transport them along their axons to the posterior pituitary. Then these neurons "fire" they release the stored hormones into a capillary bed in the posterioir pituitary for distribution throughout the body.
The hypothalamus is connected to the pituitary gland by both blood vessels and neural tissue. The posterior pituitary is actually part of the brain and receives input from the hypothalamus via neural connections. The anterior pituitary gland is controlled by the hypothalamus when the latter releases tropic hormones (hormones that control release of other hormones) into the blood portal. The hormones diffuse through the blood and act on the anterior pituitary gland, initiated the release of subsequent hormones.
The hypothalamus controls both the anterior and posterior pituitary functioning with neurosecretions that either release or inhibit hormones. These secretions are produced in the ventral hypothalamus

Answer 2

Major regulation of the thyroid gland is accomplished by the anterior pituitary through the synthesis and secretion of a hormone called thyroid-stimulating hormone (TSH).

Answer 3

the hypothalamus of a lizard influences the pituitary gland by secreting pasty white / gooey liquid via the urethra to simultaniously activate

Answer 4

Releasing or inhibitng hormones.