The Stimulus That Directly Triggers Release of ANP Is

Multiple Choice

The stimulus that directly triggers release of ANP is

A) decreased pressure detected by baroreceptors in the aorta and carotid arteries.
B) increased stretch of the heart atria.
C) increased saltiness in the cerebrospinal fluid bathing the hypothalamus of the brain.
D) increased saltiness of tubular fluid in the proximal convoluted tubule.