The constricted proximal portion of the optic vesicle in the embryo; it develops into the optic nerve.

Pineal stalk, the attachment of the pineal body to the roof of the third ventricle; it contains the pineal recess of the third ventricle.

Pituitary stalk, a process comprising the tuberal part investing the infundibular stem that attaches the hypophysis to the tuber cinereum at the base of the brain.

Yolk stalk, the narrowed connection between the intraembryonic gut and the yolk sac; its walls are splanchnopleure.

Synonyms: umbilical duct, vitelline duct, vitellointestinal duct.

(05 Mar 2000)

optic radiation, optic recess, optics, optic sign < Prev | Next > optic tectum, optic tract, optic vesicle

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