| celery stalk metaphyses | <radiology> Irregularity of metaphyses, primarily of long bones due to congenital infection (ToRCHS), especially rubella Differential diagnosis: osteopathia striata (Voerhaave syndrome) (12 Dec 1998) |
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| pituitary stalk section | Transection of the neurovascular connection between the hypothalamus and the pituitary gland. (05 Mar 2000) |
| connecting stalk | body stalk |
| stalk | A stem. Usually refers to the pituitary stalk that connects the pituitary gland to the hypothalamus. (16 Dec 1997) |
| stalk-eyed | <zoology> Having the eyes raised on a stalk, or peduncle; opposed to sessile-eyed. Said especially of podophthalmous crustaceans. Stalked-eyed crustaceans. <zoology> See Podophthalmia. Source: Websters Dictionary (01 Mar 1998) |
| stalk of epiglottis | The lower end or pedicle of the cartilage of the epiglottis, attached to the superior notch of the thyroid cartilage. Synonym: petiolus epiglottidis. (05 Mar 2000) |
| infundibular stalk | The neural component of the pituitary stalk that contains nerve tracts passing from the hypothalamus to the pars nervosa. Synonym: infundibular stalk. (05 Mar 2000) |
| optic stalk | 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. Synonym: umbilical duct, vitelline duct, vitellointestinal duct. (05 Mar 2000) |
| yolk stalk | A narrow tube present in the early embryo that connects the midgut of the embryo (through the umbilical opening) to the yolk sac outside the embryo. Later in development, the yolk stalk is usually obliterated but a remnants of it may persist, most commonly as a finger-like protrusion from the small intestine known as meckel's diverticulum. Found in 2-4% of people, meckel's diverticulum may become inflamed much like the appendix and require surgical removal. The yolk stalk is also called the umbilical duct, vitelline duct, or oomphalomesenteric duct. (12 Dec 1998) |
| acoustic vesicle | One of the paired sacs of invaginated ectoderm that develop into the membranous labyrinth of the internal ear. Synonym: acoustic vesicle, otic vesicle. (05 Mar 2000) |
| acrosomal vesicle | A vesicle derived from the Golgi apparatus during spermiogenesis whose limiting membrane adheres to the nuclear envelope; together with the acrosomal granule within, it spreads in a thin layer over the pole of the nucleus to form the acrosomal cap. (05 Mar 2000) |
| allantoic vesicle | The hollow portion of the allantois. (05 Mar 2000) |
| amniocardiac vesicle | The rostral portion of the most primitive intraembryonic celom. (05 Mar 2000) |
| auditory vesicle | One of the paired sacs of invaginated ectoderm that develop into the membranous labyrinth of the internal ear. Synonym: acoustic vesicle, otic vesicle. (05 Mar 2000) |
| Baer's vesicle | An obsolete term for vesicular ovarian follicle. (05 Mar 2000) |