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Descriptor English: Nictitating Membrane
Descriptor Spanish: Membrana Nictitante
Descriptor Portuguese: Membrana Nictitante
Descriptor French: Membrane nictitante
Entry term(s): Eyelid, Third
Eyelids, Third
Membrane, Nictitating
Membranes, Nictitating
Nictitating Membranes
Third Eyelid
Third Eyelids
Tree number(s): A13.660
RDF Unique Identifier: https://id.nlm.nih.gov/mesh/D009541
Scope note: A fold of the mucous membrane of the CONJUNCTIVA in many animals. At rest, it is hidden in the medial canthus. It can extend to cover part or all of the cornea to help clean the CORNEA.
Annotation: ptosis of entry term THIRD EYELID: coord IM with EYELID DISEASES /vet (IM), not BLEPHAROPTOSIS
Allowable Qualifiers: AB abnormalities
AH anatomy & histology
BS blood supply
CH chemistry
CY cytology
DE drug effects
DG diagnostic imaging
EM embryology
EN enzymology
GD growth & development
IM immunology
IN injuries
IR innervation
ME metabolism
MI microbiology
PA pathology
PH physiology
PP physiopathology
PS parasitology
RE radiation effects
SU surgery
TR transplantation
UL ultrastructure
VI virology
DeCS ID: 9726
Unique ID: D009541
Documents indexed in the Virtual Health Library (VHL): Click here to access the VHL documents
Date Established: 1966/01/01
Date of Entry: 1999/01/01
Revision Date: 1999/11/03
Nictitating Membrane - Preferred
Concept UI M0014845
Scope note A fold of the mucous membrane of the CONJUNCTIVA in many animals. At rest, it is hidden in the medial canthus. It can extend to cover part or all of the cornea to help clean the CORNEA.
Preferred term Nictitating Membrane
Entry term(s) Eyelid, Third
Eyelids, Third
Membrane, Nictitating
Membranes, Nictitating
Nictitating Membranes
Third Eyelid
Third Eyelids



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