cribriform plate

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cribriform plate

(1) Cribriform fascia; fascia cribrosa [NA6]. 
(2) Cribriform plate (of ethmoid bone); lamina cribrosa ossis ethmoidalis [NA6].

Cribriform plate

The horizontal bone plate perforated with several holes for the passage of olfactory nerve filaments from the nasal cavity.

cribriform plate 

This is a part of the sclera which is situated at the site of attachment of the optic nerve, 3 mm to the inner side of and just above the posterior pole of the eye. There, the sclera is a thin sieve-like membrane through which pass fibres of the optic nerve. Syn. lamina cribrosa (although this term also refers to the striated portion of the bulbar optic nerve which includes the cribriform plate). See myelinated nerve fibres.

cribriform plate (krib´rəform´),

n 1. the aveolar bone that forms the tooth socket and to which the periodontal ligament is attached (radiographically presents as the lamina dura).
2. the horizontal plate of the ethmoid bone that is perforated with foramina for the olfactory nerves.


perforated like a sieve.

cribriform plate
see cribriform plate.


1. a flat structure or layer, as a flat layer of bone.
2. used as a fracture repair medium, including compression plates.
3. to apply a culture medium to a glass plate.
4. to cultivate bacteria on such plates.

axial plate
the primitive streak of the embryo.
basal plate
primordial ventral horn of the spinal cord.
plate bender
a strong crimping device for manually bending a plate for a tricky bit of orthopedic repair.
buttress plate (2)
a metal plate used in fracture repair to bridge and support a diaphyseal gap filled with a cancellous bone graft.
cloacal plate
blind ending of the hindgut in the embryo.
cribriform plate
a sievelike partition between the cranial and nasal cavities. The posterior surface is divided by the vertical ethmoidal crest into two concave surfaces which contain the olfactory bulbs. It contains many small perforations through which the filaments of the olfactory nerves pass.
deck plate
see roof plate.
dorsal plate
see roof plate.
equatorial plate
the collection of chromosomes at the equator of the spindle in mitosis.
floor plate
the unpaired ventral longitudinal zone of the neural tube; called also ventral plate.
foot plate
the flat portion of the stapes.
medullary plate
neural plate.
muscle plate
myotome (2).
nasal plate
region of modified skin around the nostrils in the embryonic carnivore or small ruminant.
nasolabial plate
region of modified skin around the nostrils in the embryo of cattle.
neural plate
a thickened band of ectoderm in the midbody region of the developing embryo, which develops into the neural tube; called also medullary plate.
neutralization plate (2)
a bone plate placed to protect against the forces acting on the fracture site.
orthopedic bone plate
a metal plate screwed to the two fragments of a fractured bone to provide fixation and permit healing in correct alignment.
roof plate
the unpaired dorsal longitudinal zone of the neural tube; called also dorsal plate and deck plate.
rostral plate
region of modified skin around the nostrils in the porcine embryo.
sole plate
a mass of protoplasm in which a motor nerve ending is embedded.
spinal plate
metal or plastic plates may used to stabilize thoracolumbar or lumbar spinal fractures. With one plate on each side of a row of dorsal spinal processes, they are bolted together in the spaces between processes.
tarsal plate
one of the plates of connective tissue forming the framework of either (upper or lower) eyelid.
tectorial plate
the roof of the ethmoidal labyrinth of the internal ear.
tension band plate (2)
a bone plate placed on the tension side of a fracture and which counteracts tensile forces, converting them into compression forces at the fracture site.
ventral plate
floor plate.
References in periodicals archive ?
The important lymphatics of the cribiform plate area are accessed in this way and deep breathing potentiates lymphatic flow in the thoracic duct.
The cribiform plate, accessed via medial eye puncta and nasal areas, is treated first, then the zygomatic tract, auricular nodes and mastoid process.
It drains via the cribiform plate, transporting antigens within it to deep cervical lymphatic vessels and nodes(1,16).
When lymphatics of the cribiform plate are blocked, hindering CSF absorption, intracranial pressure (ICP) is raised.
Blocking cerebrospinal fluid absorption through the cribiform plate increases resting intracranial pressure.
But if their conduit through the cribiform plate closes, smell loss will be irreversible.
High-resolution computed tomography (CT) of the anterior cranial fossa demonstrated air in the cranial cavity, indicating a fracture or breach of the cribiform plate (figure 1).
Cartilage manipulation during septoplasty and subsequent insertion of the splints might have led to destabilization of the superior attachment of the middle turbinate to the cribiform plate in our patient.
The spontaneous resolution of CSF rhinorrhoea upon splint removal suggests that the Silastic splint had pushed the right middle turbinate into an overlateralized position, further weakening the superior attachment of the middle turbinate to the cribiform plate and causing a fine fracture defect (figure 2).
Two other mechanisms of injury to the cribiform plate have previously been postulated in the development of iatrogenic CSF rhinorrhea after septoplasty.
6,7) The increasing use of powered microdebrider instruments along the skull base and thin bones of the cribiform plate and ethmoid sinus may be associated with a greater incidence of pneumocephalus after FESS.
No definitive areas of bony deficiency in the cribiform plate were seen, but there was a questionable defect on the roof of the left ethmoid sinus (figure 1,A-C).