hormones
Drugs work in your body in a variety of ways. They can interfere with microorganisms (germs) that invade your body, destroy abnormal cells that cause cancer, replace deficient substances (such as hormones or vitamins), or change the way that cells work in your body. There are more than 8,000 medications available either by prescription or over-the-counter. Some can be used to treat several different health conditions. Aspirin, for example, can be used to treat pain, inflammation, and fever. In addition, aspirin can prevent heart attacks if taken on a regular basis.
Vitamins Minerals Water.
Exocytosis is a process by which cells release substances from inside the cell to the outside by fusing vesicles containing the substances with the cell membrane. This is a crucial mechanism for the cell to export molecules such as proteins, hormones, and neurotransmitters.
The purpose of secretion is to release substances, such as hormones or enzymes, from cells into the external environment or bloodstream for various physiological functions, like digestion, communication, and waste elimination.
Blood is a fluid that carries substances in its cells (such as red and white blood cells) and dissolved in its liquid (such as oxygen, nutrients, hormones, and waste products).
Glands
Secretory processes are cellular mechanisms by which cells release substances such as hormones, enzymes, and mucus into their external environment. These substances can be released into the bloodstream, digestive tract, or other body tissues to carry out specific functions within the organism.
They substances transported by blood.Gases,Nutrients,Water,Hormones,Urea,Ammonia,Other waste materials etc.
Endocrine Glands are a type of ductless organ that produce hormones
TestosteroneInterstitial cells produce androgens, one of which is Testosterone)testosteronetestosteronetestosterone
Tropic hormones act by stimulating the release of other hormones from target glands, which in turn produce a physiological response. Nontropic hormones directly bind to receptors on their target cells to initiate a cellular response without involving other hormones.