In case of flight or fight reaction to an emergency situation, Adrenal glands release adrenaline into blood which   acts on heart and other tissues causes faster heart beat   more oxygen to muscles reduced blood supply to digestive  system and skin diversion of blood to skeletal muscles   increase in breathing rate. Deficiency of iodine causes goiter whereas deficiency of growth hormone and insulin causes dwarfism and diabetes respectively. Feedback mechanisms are present to regulate the hormone action. Difference between nervous and endocrine system Nervous system Endocrine system Mode of Electrical impulses Chemical compounds communication Speed of Very quick Slow communication Can reach Only connected by All cells of the body nervous system Continuity Cannot continuously Can act steadily and transmit impulses persistently Top Definitions
In case of flight or fight reaction to an emergency situation, Adrenal glands  release adrenaline into blood  which acts on heart and other tissues  causes faster heart beat  more oxygen to muscles  reduced blood supply to digestive system and skin  diversion of blood to skeletal muscles  increase in breathing rate. Deficiency of iodine causes goiter whereas deficiency of growth hormone and insulin causes dwarfism and diabetes respectively. Feedback mechanisms are present to regulate the hormone action. Difference between nervous and endocrine system Nervous system Endocrine system Mode of communication Electrical impulses Chemical compounds Speed of communication Very quick Slow Can reach Only connected by nervous system All cells of the body Continuity Cannot continuously transmit impulses Can act steadily and persistently Top Definitions
ist%20term%20notes.docx