What tissues does adrenaline target?
For example, adrenalin (epinephrine for our American cousins) is a hormone released by the adrenal gland above the kidneys. But the target tissues for adrenalin are found all over the body – e.g. the heart, the skeletal muscles, the iris in the eye, the hairs in the skin, the lungs, the liver etc.
What tissues does ACTH target?
|Endocrine gland/ source of hormone||Hormone||Target organ or tissue|
|Anterior pituitary (adenohypophysis)||ACTH (adrenocorticotrophic hormone)||Adrenal cortex|
|FSH (follicle stimulating hormone)||Ovaries / testes (tubules)|
|LH (luteinizing hormone)||Ovaries / testes (Leydig cells)|
|GH (growth hormone)||All tissues|
What is the target tissue of epinephrine and norepinephrine?
Major Hormones: Origin, Target, Function
|HORMONE||GLAND ORIGIN||TARGET TISSUE|
|Epinephrine||Adrenal gland||Muscles and blood vessels|
|Norepinephrine||Adrenal gland||Muscles and blood vessels|
What is the target organ or tissue of testosterone?
Testosterone is converted to dihydrotestosterone in most tissues that are sensitive to androgens, including the testes, prostate gland, hair follicles, and muscles. Although testosterone itself has androgenic actions, its conversion to dihydrotestosterone is critical to the development of external genitalia in boys.
What is a target tissue for a hormone?
Target tissue refers to the intended site that a hormone will affect such as muscle. Receptor site. Receptor sites are special sites located on every target tissue and only communicate with the specific hormone intended for the target tissue.
How does epinephrine act on the target cell?
The physiologic effects of epinephrine and norepinephrine are initiated by their binding to adrenergic receptors on the surface of target cells. These receptors are prototypical examples of seven-pass transmembrane proteins that are coupled to G proteins which stimulate or inhibit intracellular signalling pathways.
How does testosterone enter target cells?
Testosterone is produced in the testes and travels through the blood in carrier proteins such as serum albumin or sex hormone binding globulin. It passively diffuses through the cell membranes of target cells.
What is the target tissue of oxytocin?
Mammary alveoli are surrounded by smooth muscle (myoepithelial) cells which are a prominant target cell for oxytocin. Oxytocin stimulates contraction of myoepithelial cells, causing milk to be ejected into the ducts and cisterns.
What is target tissue?
Definition: The biological tissue(s) most adversely affected by exposure to a chemical substance.