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Infundibular stalk - definition

AKA infundibulum or pituitary stalk, the infundibular stalk is a tube-like structure that connects the posterior pituitary to the hypothalamus. It allows for hormones synthesized in the hypothalamus to be sent to the posterior pituitary for release into the bloodstream.

Learn more: 

Know Your Brain: Pituitary Gland

Know Your Brain: Hypothalamus

2-Minute Neuroscience: Hypothalamus & Pituitary Gland