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.

cribriform

perforated like a sieve.

cribriform plate
see cribriform plate.

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 ?
In decreasing order of prevalence, SNTCSs are also found in the orbit, skull base, cribriform plate, nasopharynx, and anterior cranial fossa.
Instead, it was attached to the cribriform plate and the sphenoethmoid recess by a stalk.
Subsequent inspection of the nasal cavity demonstrated an intact septum and lateral wall and an intact cribriform plate.
The patient was then treated with a course of radiotherapy localized to the area of the cribriform plate to eradicate any remaining microscopic foci of disease.
One of these findings was the absence of cribriform plate invasion.
1,4,5,15,16) Some authors have paid little or no attention to the close association of the cribriform plate with the lacrimal fossa, anterior ethmoid artery foramina, and the frontoethmoid suture line.
The level of the artery was 3 to 4 mm above the cribriform plate.
We attempted to trace the frontoethmoid suture line and the anterior ethmoid artery in the involved orbit, while also correlating with the other side, in order to be sure that the direction of our drilling was inferior to the anterior skull base and the cribriform plate, given our knowledge that these are anecdotally reliable markers.
T3: The tumor has invaded the orbital floor, maxillary sinus, palate, or cribriform plate.
Olfactory neuroblastomas are thought to arise from the specialized sensory neuroepithelial (neuroectodermal) olfactory cells that are normally found in the upper part of the nasal cavity, usually including the cribriform plate of the ethmoid sinus.
For practical purposes, all olfactory neuroblastomas involve the cribriform plate to some degree or other.