The hypothalamus controls secretion by the adenohypophysis by
A)direct neural stimulation.
B)indirect osmotic control.
C)secreting releasing and inhibiting factors into a tiny portal system.
D)altering ion concentrations and pH in the anterior pituitary.
E)gap synaptic junctions.

Question

Quizplus · Accepted Answer

The hypothalamus secretes releasing and inhibiting factors, which are transported to the adenohypophysis via the hypothalamic-hypophyseal portal system. This system consists of a network of tiny blood vessels that connect the hypothalamus directly to the anterior pituitary gland, allowing for precise control over the secretion of hormones from the adenohypophysis.

The Hypothalamus Controls Secretion by the Adenohypophysis by