tear sac
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tear sac — noun either of the two dilated ends of the lacrimal ducts at the nasal ends of the eyes that fill with tears secreted by the lacrimal glands • Syn: ↑lacrimal sac, ↑dacryocyst • Hypernyms: ↑vesicle, ↑cyst • Part Holonyms: ↑lacrimal apparatus … Useful english dictionary
sac — 1. A pouch or bursa. SYN: saccus [TA]. SEE ALSO: sacculus. 2. An encysted abscess at the root of a tooth. 3. The capsule of a tumor, or envelope of a cyst. [L. saccus, a … Medical dictionary
tear duct and glands — ▪ anatomy also called lachrymal, or lacrimal, duct and glands structures that produce and distribute the watery component of the tear film. Tears consist of a complex and usually clear fluid that is diffused between the eye (eye, human)… … Universalium
tear duct — noun /ˈtɪədʌkt/ A duct that transports tears from the lacrimal sac to the nasal cavity See Also: nasolacrimal sac … Wiktionary
lacrimal sac — noun either of the two dilated ends of the lacrimal ducts at the nasal ends of the eyes that fill with tears secreted by the lacrimal glands • Syn: ↑tear sac, ↑dacryocyst • Hypernyms: ↑vesicle, ↑cyst • Part Holonyms: ↑lacrimal apparatus … Useful english dictionary
lacrimal sac — noun The upper dilated end of the tear duct Syn: nasolacrimal sac … Wiktionary
lachrymal sac — top part of the tear duct that conducts tears out of the eyes … English contemporary dictionary
eye disease — Introduction any of the diseases or disorders that affect the human eye (eye, human). This article briefly describes the more common diseases of the eye and its associated structures, the methods used in examination and diagnosis, and the… … Universalium
Tears — 250px|thumb|The tear system. A) Tear gland / Lacrimal glandB) Superior lacrimal punctum C) Superior lacrimal canal D) Tear sac / Lacrimal sac E) Inferior lacrimal punctum F) Inferior lacrimal canal G) Nasolacrimal canal Tears are the liquid… … Wikipedia
Orbit (anatomy) — The seven bones that articulate to form the orbit. yellow = Frontal bone green = Lacrimal bone brown = Ethmoid bone blue = Zygomatic bone purple = Maxillary bone aqua = Palatine bone red … Wikipedia
