CHEMICAL COORDINATION AND INTEGRATION IN LIVING ORGANISMS |HORMONES|THE PITUITARY GLAND |THE PINEAL GLAND|THYROID HORMONES |THYMUS ADRENAL GLAND|PANCREAS|MECHANISM OF HORMONE ACTION
CHEMICAL COORDINATION AND INTEGRATION https://www.facebook.com/sciencegajab/ visit for fb page HORMONES ARE • Non-nutrients chemicals • Intercellular messengers • Produced in trace amount. • Generally endocrine gland secretions are Hormones but some chemicals also considered as hormones which are not produced by endocrine glands. Human endocrine system Endocrine gland location – 1. Head --> Hypothalamus, Pituitary gland and Pineal gland 2. Neck --> Thyroid & Parathyroid 3. Thorax --> Thymus 4. Abdomen --> Pancreas & Adrenal gland 5. Pelvic region --> Ovary in female & Testis in Male (in scrotum) Non endocrine parts which secretes few hormones are Gastrointestinal tract, kidney, liver and heart THE HYPOTHALAMUS: • Present at Basal part of diencephalon (fore brain) • Made by several group of neurosecretory cells called NUCLEI which produce hormones • Its hormones regulate the synthesis and secretion of pituitary gland. • Nucl