اشتقت لك كثيرا

اشتقت لك كثيرا

النتائج (الإنجليزية) 1:

I miss you so much

النتائج (الإنجليزية) 3:

1. There are two organ systems the nervous system and the endo. IRines. Which coordinate the activities of all others. Almost nothing canHappen to the body anywhere without appropriate response either motorOr perceptual, voluntary or involuntary. Similarly, various parts of theEndocrine system act upon each other and other organs, stimulatingThem I o do their special jobs. Thus, the thyroid gland stimulates theMetabolism of all bodily parts. The adrenal medulla mobilizes theActivities of many organ systems in case of the emergency. And theAdrenal cortex exercises control over many body functions, so importantThat its removal results in failure of the functions and the death of the animal.2. Endocrine glands or glands of internal secretion areDuctless glands, that is, they empty their secretionsChemical substances called hormones(from the Greek word hormao excite)Directly into the blood stream. The hor.Mones are carried throughout the organism with the blood and areDelivered to various organs whose activity they either stimulate orDepress. Neither single hormone nor endocrine gland acts wholly byItself at any time.3.We know hormones to play a very important part in the organism.Many of them affect metabolism and the activity of the cardiovascular andOther systems. A disturbance in the activity of the endocrine glands isAccompanied by changes throughout the organism. These changes mayBe not only due to an increase in the function of a gland (hyper function).But to a decrease (hypofunction).4.A hyperfunctioning gland secretes a superfluous amount of hormonesAnd a hypofunctioning gland secretes an insufficient amount. The amountOf hormones produced by the endocrine glands in 24 hours measuresFractions of a milligram.5.The functions of all the endocrine glands are interconnected so thatThe glands make up a single system. Physiologists consider the hypophysisTo be the chief gland of this system; they consider it to produce specialSubstances which stimulate the activities of other endocrine glands.6.The activities of endocrine glancjs are regulated by the nervous ISystem. It is known to exercise direct control over the endocrine glandsThrough the nerves and neurohumoral control, particularly through theHypophysis. The hormones in their turn ^ ffect the functions of the differentParts of the nervous system.