Chemical coordination and integration

Harmone- are non nutrient chemical which act as intracellular messenger and are produced in trace amount"

                              Human endocrine system

1- hypothalamus-two types 

The releasing hormone, the inhibiting hormone

(a) GnRh-stimulate the pituitary gland synthesis and release of gonadotropins

(b) somatostatin-from the hypothalamus inhibit the release of growth hormone

                                The pituitary gland

Body cavity name is sella tursica

The pituitary gland divided into two parts

(Adenohypophysis) (neurohypophysis)

  1- adenohypophysis- adenohypophysis divided into two parts, parts intermedia pars distalis.

Ars digital is commonly known as anterior pituitary

(1)-anterior pituitary

6 hormone are released from the pituitary gland

Growth hormone

Prolactin

TSH thyroid stimulating hormone

AC TH adrenocorticotropic hormone

LH luteinizing hormone

FSH follicle stimulating hormone

#Pars intermedia only one hormones are releasing name msh (melanocyte stimulating hormone)

2-neurohypophysis-also known as posterior pituitary

          Posterior pituitary

Only two hormones are releasing from the posterior pituitary number 1 oxytocin number 2 vasopressin (ADH)