Antidiuretic hormone (ADH) and oxytocin are polypeptides each containing how many amino acids?
Explanation
This question asks for a specific structural detail of the posterior pituitary hormones, ADH and oxytocin, highlighting their small peptide nature.
Other questions
Which hormone, secreted by the anterior pituitary, promotes growth of the entire body by affecting protein formation, cell multiplication, and cell differentiation?
What is the approximate weight of the pituitary gland in a typical adult?
From which embryonic structure does the anterior pituitary originate?
What percentage of the cells in the anterior pituitary are somatotropes that secrete growth hormone?
Secretion by the anterior pituitary is controlled by hormones conducted from the hypothalamus through which specific blood vessels?
What is the primary action of Corticotropin-releasing hormone (CRH) on the anterior pituitary?
Growth hormone is a small protein molecule consisting of how many amino acids in a single chain?
Which of the following is NOT a direct metabolic effect of growth hormone?
The growth-promoting effects of Growth Hormone are mediated through the formation of which substances, also known as somatomedins, primarily in the liver?
What is the approximate half-time of growth hormone (GH) in the blood, reflecting its weak binding to plasma proteins?
Which of the following conditions is the most potent acute stimulator of growth hormone secretion?
Generalized deficiency of anterior pituitary secretion during childhood results in what condition?
In a person who develops gigantism, how tall can they become if the condition occurs before adolescence?
What is the condition called when an acidophilic tumor causing excess growth hormone occurs after adolescence, leading to bone thickening but not increased height?
Where in the hypothalamus are the cell bodies of the neurons that secrete posterior pituitary hormones located?
What are the two hormones secreted by the posterior pituitary?
An injection of as little as 2 nanograms of antidiuretic hormone (ADH) can cause what primary physiological effect?
Which stimulus leads to the release of oxytocin, resulting in milk letdown or milk ejection?
Higher concentrations of antidiuretic hormone (ADH) have a potent effect of constricting arterioles, leading to its alternative name. What is this alternative name?
Which hypothalamic hormone is also known as somatostatin and inhibits the release of growth hormone?
A decrease in blood volume of what percentage is required to strongly stimulate antidiuretic hormone (ADH) secretion?
In a person with panhypopituitary dwarfism who does not pass through puberty, what is the primary cause?
What is the most important insulin-like growth factor (IGF) that mediates the effects of growth hormone?
According to the text, what is the 'ketogenic' effect of excessive growth hormone?
What is the normal plasma concentration of growth hormone in a child or adolescent?
In a patient with acromegaly, which bones are NOT mentioned as being markedly enlarged?
What is the principal cell type that makes up the posterior pituitary gland?
What are the carrier proteins called that transport ADH and oxytocin down the axons from the hypothalamus to the posterior pituitary?
ADH is formed primarily in the supraoptic nuclei, while oxytocin is formed primarily in which hypothalamic nuclei?
Which amino acids are different between the structures of vasopressin (ADH) and oxytocin?
The mechanism by which ADH increases water permeability in the collecting ducts involves the insertion of which water-permeable pores into the apical cell membranes?
What is the primary stimulus for the secretion of Antidiuretic Hormone (ADH) related to body fluid concentration?
In addition to its role in childbirth, oxytocin plays an especially important and better-understood role in what other process?
What is the molecular weight of human growth hormone?
What is the effect of growth hormone (GH) on the catabolism of proteins and amino acids?
The diabetogenic effects of growth hormone are attributed to its induction of what condition?
What is the approximate plasma concentration of growth hormone in an adult between the ages of 40 and 70 years?
What is the name for the condition of a hunched back that can be caused by changes in the vertebrae in a person with acromegaly?
If the pituitary stalk is cut but the hypothalamus is left intact, what happens to the secretion of posterior pituitary hormones?
Which hypothalamic hormone is chemically a catecholamine?
What is the primary role of prolactin?
Under the influence of growth hormone, what is the preferred source of energy for the body's cells?
Which hormone's secretion characteristically increases during the first two hours of deep sleep?
What is the primary function of Luteinizing hormone (LH) in males?
How long does it take for the growth-promoting effects of Insulin-like growth factor-1 (IGF-1) to be significantly reduced, given its half-time in the blood?
Which condition is a more potent long-term controller of growth hormone (GH) secretion?
What is the primary action of Follicle-stimulating hormone (FSH) in females?
Which factor from the provided list inhibits the secretion of growth hormone?
What is a primary cause of panhypopituitarism that first occurs in adulthood?