Identify the incorrect statement(s) regarding hormones from non-endocrine glands:
I. An unorganized system which works on a negative feedback mechanism.
II. Includes major parts or organs like heart, kidney, epithelial tissues, etc.
III. Most of them are very much related to digestion or excretion.
IV. All the hormones of the system are steroids and their derivatives.
Identify the incorrect statement(s) regarding hormones from non-endocrine glands:
I. An unorganized system which works on a negative feedback mechanism.
II. Includes major parts or organs like heart, kidney, epithelial tissues, etc.
III. Most of them are very much related to digestion or excretion.
IV. All the hormones of the system are steroids and their derivatives.
The correct option is A IV
Although it is the endocrine glands that are responsible for the secretion of specific hormones, there are many other organs and tissues also, that contain endocrinocytes (cells that secrete specific hormones) and therefore, release hormones into the body. For example, the atrial wall of our heart secretes a very important peptide hormone called atrial natriuretic factor (ANF), which decreases blood pressure. The juxtaglomerular cells of kidney produce a peptide hormone called erythropoietin which stimulates erythropoiesis (formation of RBC). Endocrine cells present in different parts of the gastrointestinal tract secrete four major peptide hormones, namely gastrin, secretin, cholecystokinin (CCK) and gastric inhibitory peptide (GIP). All these and many others, in general, are responsible for controlling a huge range of different functions that affect all of the systems of the body. This is achieved by many different hormones, each controlling very specific conditions or processes - often via biochemical cycles or "pathways" involving various other biochemicals within the body.
IV
Although it is the endocrine glands that are responsible for the secretion of specific hormones, there are many other organs and tissues also, that contain endocrinocytes (cells that secrete specific hormones) and therefore, release hormones into the body. For example, the atrial wall of our heart secretes a very important peptide hormone called atrial natriuretic factor (ANF), which decreases blood pressure. The juxtaglomerular cells of kidney produce a peptide hormone called erythropoietin which stimulates erythropoiesis (formation of RBC). Endocrine cells present in different parts of the gastrointestinal tract secrete four major peptide hormones, namely gastrin, secretin, cholecystokinin (CCK) and gastric inhibitory peptide (GIP). All these and many others, in general, are responsible for controlling a huge range of different functions that affect all of the systems of the body. This is achieved by many different hormones, each controlling very specific conditions or processes - often via biochemical cycles or "pathways" involving various other biochemicals within the body.
