Endocrinology/VasopressinADH/SummaryOfEffect/basic

POINT!

With an increase/a decrease in the synthesis, secretion, and blood concentration of vasopressin (ADH), plasma osmolarity decreases/increases.

With an increase/a decrease in the synthesis, secretion, and blood concentration of vasopressin (ADH), the number of water channels (in the tubule) increases/decreases, which increases/decreases the water reabsorption (from the tubule). The plasma osmolarity-decreasing effect of water reabsorption becomes stronger/weaker, and plasma osmolarity decreases (diluted, hypotonic)/increases (concentrated, hypertonic).

Challenge Quiz

1.

With an increase a decrease  正解! in the synthesis, secretion, and blood concentration of vasopressin (ADH), plasma osmolarity decreases (diluted, hypotonic).

2.

With an increase a decrease  正解! in the synthesis, secretion, and blood concentration of vasopressin (ADH), plasma osmolarity increases (concentrated, hypertonic).