Question

The hypothalamus and pituitary work in concert:

explain the importance of this connection and that they provide a connection between the nervous system and the endocrine system.

Answer 1

Two glands Hypothalamus, and pituitary connect through various chemicals which know as hormones. Various nervous stimuli of physical and chemical changes of body receive by Hypothalamus, which help it to secrete its hormones. Those are specific hormones and describe as the following.

Releasing hormones: These hormones regulate other hormones for their secretion from their respective glands. For example thyrotropin-releasing hormone which release thyroid-stimulating hormone.

Major releasing hormones:

Corticotropin-releasing hormone (CRH), growth hormone releasing hormone (GnRH),, gonadotropin-releasing hormone (GHRH),: these are basically secreted by hypothalamus and help to release hormones from pituitary.

Inhibiting hormones: These hormones have function for inhibiting other hormones production. For example melanocyte Inhibiting hormone secret from hypothalamus and inhibits melanocyte-stimulating hormone. Other inhibiting hormones are like dopamine, follistatin and cortistatin.

Hormones secreted from pituitary gland:

The neurosecretory cells of pituitary get signal from hypothalamus released hormones. These cells then transfer the signal to adenohypophysis [anterior] of pituitary to produce five types of hormone. Which are Somatotropin, Lutropin, Corticotropin, Thyrotropin, Lactotropin and fonadotropin.

The middle lobe of pituitary gland secretes melanocyte-stimulating hormone. And, posterior region of pituitary secrets oxytocin and vasopressin.