Hormones | Back to Top. The endocrine system is a collection of glands that secrete chemical messages we call hormones. These signals are passed through the blood to arrive at a target organ, which has cells possessing the appropriate receptor.he thyroid gland is located in the neck. Follicles in the thyroid secrete thyroglobulin, a storage form of thyroid hormone. Thyroid stimulating hormone (TSH) from the anterior pituitary causes conversion of thyroglobulin into thyroid hormones T4 and T3. Almost all body cells are targets of thyroid hormones.
Cocaine generally stays in your system for about 2-4 days. In fact, this is the detection window for urine for most casual users. However, chronic or heavy cocaine users may have a much longer detection window.s with other drugs, cocaine concentrations in hair are visible for at least 90 days after dosing. However, cocaine does not leave its marks at the root of the hair, but to specific areas. That means that it is there until the hair falls out or is cut off.
Saliva test â Cocaine is detectable in saliva after 5 to 10 minutes of taking the drug. It may be detected in saliva till 2 to 4 days. Urine test â Detectable after 2 to 5 hours of use, till a period of 3 to 4 days.Blood testing is more specific. The drug is detected after 5 to 6 hours till around 5 to 7 days or even more.owever, if the dose is heavy, it may take about 72 hours. After this period it is usually not detected in urine. However, there is an exception. If a large quantity of alcohol has also been consumed with cocaine, it takes even longer to eliminate- 5 days approximately.