Insulin is synthesized in significant quantities only in beta cells in the pancreas.
Pancreas and the Ovaries(in females) are the glands which can be called both endocrine and exocrine.
No. Exocrine glands have tubes (ducts) leading from them to some other body part or cavity. Endocrine glands are ductless and secrete their substances.... mostly hormones..... into the intercellular space and these hormones are then picked up by the bloodstream and transported throughout the body to where they are needed.
Endocrine glands secrete their hormones directly into the bloodstream. Exocrine glands secrete their hormones into a duct that leaves the body externally: for example, sweat glands empty onto the skin. Endocrine gland secretes compounds (hormones) into the blood. Exocrine gland secretes compounds outside of the body (including into the GI tract since the GI tract is topologically outside of the body). Exocrine glands have ducts that carry their secretory product to a surface. These glands include the sweat, sebaceous, and mammary glands and, the glands that secrete digestive enzymes.The endocrine glands do not have ducts to carry their product to a surface. They are called ductless glands. The word endocrine is derived from the Greek terms "endo," meaning within, and "krine," meaning to separate or secrete. The secretory products of endocrine glands are called hormones and are secreted directly into the blood and then carried throughout the body where they influence only those cells that have receptor sites for that hormone.
Most glands do not have ducts. The ones that do are called exocrine glands; mainly these just are sweat glands, oils glands, digestive glands, and sexaul reproducitive glands.
There is more than one organ that has both endocrine and exocrine functions. The pancreas houses two distinctly different tissues. The bulk of its mass is exocrine tissue and associated ducts, which produce an alkaline fluid loaded with digestive enzymes which is delivered to the small intestine to facilitate digestion of foodstuffs. Scattered throughout the exocrine tissue are several hundred thousand clusters of endocrine cells which produce the hormones insulin and glucagon, gastrin, and somatostatin, plus a few other hormones. The liver also has both endocrine and exocrine functions. The liver's exocrine function involves the secretion of bile, which moves through ducts to the gallbladder where it is stored until needed to emulsify fats. In addition, the liver produces the hormone insulin=like growth factor 1 (IGF-1), which affects growth and development in childhood and impacts adult muscle development as well. The liver also produces the endocrine hormone thrombopoeitin, which stimulate the production of platelets. It makes angiotensinogen, a hormone that affects blood pressure. The stomach secretes stomach acid (exocrine) as well as gastrin (an hormone that works within the stomach). The duodenum secretes mucus (exocrine) as well as gastrin, cholecystokinin, and secretin (endocrine). While the testicles and ovaries do have endocrine function, they produce no exocrine secretions.
Sodium bicarbonate is secreted by the pancreas. The pancreas has both endocrine and exocrine function. Its secretion of sodium bicarbonate is part of its exocrine function.
Insulin is an endocrine hormone produced by the beta cells of the pancreas. It is released into the bloodstream to regulate blood glucose levels. Unlike exocrine glands, which secrete substances through ducts to specific locations, endocrine glands release hormones directly into the circulatory system. Thus, insulin is classified as an endocrine hormone.
No. These are exocrine glands.
It creates insulin and secretes digestive enzymes.
I think the student wanted to ask about the difference between an exocrine and endocrine gland but mistakened and wrote both the same. Exocrine gland differ from Endocrine gland because in case of exocrine glands ezymes are secreted by ducts carrying them to their site of actions but in case of endocrine hormones are secreted in body without ducts and are cariied by circulatory fluid of the organism.
Pancreas and the Ovaries(in females) are the glands which can be called both endocrine and exocrine.
The pancreas makes insulin and glucagon and excretes these into the bloodstream. These are hormones that help with regulation of sugar in the body. This is the endocrine part of the pancreatic function. It also makes enzymes that aid in digestion. It also makes bicarbonate to neutralize acids in the stomach. This is the exocrine part of the pancreatic function.
The release of insulin by the pancreas is an endocrine function. The release of sweat and saliva are exocrine functions.
The main difference between exocrine and endocrine glands is that endocrine glands secrete hormones into the bloodstream and have no ducts while exocrine glands secrete chemical substances into ducts.
Exocrine and endocrine glands
Exocrine glands are any glands that deposit their secretions through a duct onto a body surface. Because sweat is deposited onto the surface of our skin it would be considered an exocrine gland. Endocrine glands secrete directly into our bloodstream.
The pancreas releases hormones glucagon and insulin into the blood stream like all other endocrine organs, but also releases digestive enzymes into the intestine. Since the intestine is considered 'outside' that is an exocrine function.