Which of the following hormones is NOT released by the anterior pituitary?

A. Facilitating gas exchange:Gas exchange occurs in the respiratory system (alveoli), not the lymphatic system.
B. Returning excess fluid to the bloodstream:The lymphatic system collects interstitial fluid (lymph) and returns it to the venous circulation, preventing edema.
C. Digesting proteins:Protein digestion is performed by the gastrointestinal tract and its enzymes, not the lymphatic system.
D. Producing red blood cells:Hematopoiesis (red blood cell production) occurs in bone marrow, not the lymphatic system.

A. Through conscious voluntary control:Pituitary secretions are regulated by neuroendocrine pathways and feedback loops, not by conscious voluntary control.
B. By the autonomic nervous system directly stimulating the pituitary gland:The autonomic nervous system can modulate some endocrine organs, but pituitary control is primarily via hypothalamic neural and vascular signals rather than direct autonomic stimulation of the pituitary itself.
C. By feedback from peripheral organs only:Peripheral hormone feedback influences both hypothalamus and pituitary, but this is not the sole mechanism—neural input from the hypothalamus is essential.
D. Through direct neural connections with the hypothalamus:The hypothalamus, a neural structure, communicates with the pituitary via neural (posterior pituitary axons) and vascular (hypophyseal portal) connections to regulate pituitary hormone release.