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Topic: Cribiform plate

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In the News (Thu 21 Jun 18)

  Cranial Fossae
• Formed by the orbital plates of the frontal bones, the cribiform plate of the ethmoid bones, and the lesser wings and anterior part of the body of the sphenoid.
Posterior border of the lesser wing of the sphenoid and the anterior margin of the chiasmatic groove.
The crista galli is the upward continuation of the perpendicular plate of the ethmoid.
www.ucsf.edu /nreview/02.4-Anatomy-Cranium/CranialFossae.html   (529 words)

  Ethmoid bone Info - Bored Net - Boredom   (Site not responding. Last check: 2007-10-22)
On either side of the crista galli, the cribriform plate is narrow and deeply grooved; it supports the olfactory bulb and is perforated by foramina for the passage of the olfactory nerves.
The anterior border articulates with the spine of the frontal bone and the crest of the nasal bones.
The cribriform plate is ossified partly from the perpendicular plate and partly from the labyrinths.
www.borednet.com /e/n/encyclopedia/e/et/ethmoid_bone.html   (1389 words)

 Palaeos Vertebrates > Bones> Braincase > Ethnoid Region > The Ethmoid
The cribiform plate of the ethmoid is apparently a linguistic redundancy, since both terms refer to the sieve-like nature of the braincase at the roof of the nasal cavity.
The sieve-like holes in the cribiform permit the axons of olfactory receptor neurons in the nasal mucosa to synapse directly with the mitral neurons in the olfactory bulbs.
The ethmoturbinals are associated with the cribiform plate.
www.palaeos.com /Vertebrates/Bones/Braincase/Ethmoid.html   (2120 words)

 II. Osteology. 5a. 6. Ethmoid bone. Gray, Henry. 1918. Anatomy of the Human Body.
The ethmoid bone is exceedingly light and spongy, and cubical in shape; it is situated at the anterior part of the base of the cranium, between the two orbits, at the roof of the nose, and contributes to each of these cavities.
plate, on either side of the crista galli, is a small fissure which is occupied by a process of dura mater.
150, 151) is a thin, flattened lamina, polygonal in form, which descends from the under surface of the cribriform plate, and assists in forming the septum of the nose; it is generally deflected a little to one or other side.
www.bartleby.com /107/36.html   (1277 words)

 Ethmoid bone - Wikipedia, the free encyclopedia
The ethmoid bone is very delicate and is easily injured by a sharp upward blow to the nose, such as a person might suffer by striking an automobile dashboard in a collision.
The force of a blow can drive bone fragments through the cribiform plate into the meninges or brain tissue.
Such injuries are often evidenced by leakage of cerebrospinal fluid into the nasal cavity, and may be followed from the nasal cavity to the brain.
en.wikipedia.org /wiki/Ethmoid_bone   (406 words)

 CribiformPlate   (Site not responding. Last check: 2007-10-22)
As you can see, the cribriform plate (A) contains many perforations which connect the nasal cavity and the cranium.
Through these perforations, numerous olfactory nerves pass from the olfactory epithelium of the ethmoid turbinates to the olfactory bulbs of the brain.
Occassionally, a rip-roaring nasal infection may gain access through the cribiform plate and set up a meningitis in the animal.
www.vetmed.wsu.edu /Van308/cribiformplate.htm   (61 words)

 [No title]   (Site not responding. Last check: 2007-10-22)
The olfactory nerve exits the skull through the cribiform plate of the ethmoid bone--an infection in the nasal cavity may be carried to the olfactory bulb by the nerves that are passing through the cribiform plate.
The crista galli is a ridge on the ethmoid bone between the two sides of the cribiform plate; it provides an anchor for the falx cerebri.
It is made of the greater wings of the sphenoid and squamous part of the temporal bones laterally and the petrous part of the temporal bones posteriorly.
www-personal.umich.edu /~benwei/cgi-data/shared/linked/Scalp(PQ).doc   (3028 words)

 Chapter 6, Slide 1   (Site not responding. Last check: 2007-10-22)
The tooth is anchored to the surrounding alveolar bone by the periodontal ligament.
The layer of cribriform plate into which the collagen fibers of the ligament are anchored is called bundle bone.
Cribriform and cortical plates are both compact bone, and are separated by spongy bone in the center of alveolar bone.
dentistry.ouhsc.edu /intranet-WEB/Courses/CELL8002/Chapter6/6.1.html   (114 words)

 Skull 4a
Immediately anterior to the sphenoid bone is the ethmoid bone, which forms the roof of the nasal cavity and a portion of the partition (nasal septum) dividing the nasal cavity into the right and left sides.
The superior surface of the ethmoid bone forming the roof of the nasal cavity is called the cribriform plate.
The perpendicular plate of the ethmoid extends inferiorly and forms the superior part of the nasal septum.
bioweb.uwlax.edu /aplab/Table_of_Contents/Lab_03/Skull_4/Skull_4a/skull_4a.html   (237 words)

 All Information of Cribiform plate   (Site not responding. Last check: 2007-10-22)
The cribriform plate of the ethmoid bone (horizontal lamina) [Fig.
Projecting upward from the middle line of this plate is a thick, smooth, triangular Process (anatomy), the crista galli, so called from its resemblance to a cock 's comb.
The foramina in the middle of the groove are small and transmit the nerve s to the roof of the nasal cavity; those at the medial and lateral parts of the groove are larger—the former transmit the nerves to the upper part of the nasal septum, the latter those to the superior nasal concha.
cribiform.plate.en.xvip.org   (2862 words)

 [No title]
Identify all bony contributions to the nasal cavity: Vomer Perpendicular plate of the ethmoid bone Nasal bone Cribiform plate of the ethmoid bone Sphenoid bone Maxilla Inferior nasal concha Describe the boundaries of the nasal cavity.
perpendicular plate of ethmoid — superior part of the nasal septum that descends from the cribiform plate and is continued superiorly as the crista galli.
CSF rhinorrhea results from a fracture of the cribiform plate, tearing of the cranial meninges, and leakage of CSF from the nose.
www.mc.vanderbilt.edu /anatomy/Head/HN12NasalCav03.doc   (2603 words)

 Living With Brain Injury
Skull fractures that separate the cranial sutures in children prior to the closing of the cranial fissures are termed "diastatic skull fractures".
The cribiform plate is a thin structure located behind the nose area.
If the cribiform plate is fractured, cerebral spinal fluid can leak from the brain area out the nose.
www.biausa.org /education.htm   (3809 words)

 Head and Neck Quiz -- Bones of the Face Part 2
What are paired bones of the skull that consist of two plates, vertical and horizontal plates and resembles the letter "L"?
It is situated at the back part of the nasal cavity between the maxilla and the pterygoid process of the sphenoid.
What are the lateral portions of the ethmoid bone in the nasal cavity on either side of the perpendicular plate that warms the nose?
www.amyrdhstudents.com /hnbones2.htm   (986 words)

 [No title]
Occurs in areas of thinness of bone and adherence of the dura to the skull: cribiform plate, posterior wall of frontal sinus, sphenoid, sella floor or the great sphenoidal wing (large lateral development of sinus).
Some authors feel all cases with compound fractures, a defect within the posterior wall of the frontal sinus, the cribiform plate and ethmoidal region, or fractures of the sphenoid should be operated upon even if rhinorrhea has stopped spontaneously due to high risk of recurrence and meningitis.
During ENT operations: endoscopic sinus surgery(bone often dehiscent in long standing or severe polypoid disease), septoplasty (must not crack the cribiform plate- most often occurs using the Jansen-Middleton forceps and a rocking motion) Fistulas produced unintentionally during ENT operations can usually be closed from the same approach.
www.utmb.edu /oto/Grand_Rounds_Earlier.dir/CSF_Leaks_1989.txt   (1297 words)

 Image-Guided Surgery in a Case of Spontaneous CSF Leak   (Site not responding. Last check: 2007-10-22)
Figure 2: Blunt tip probe is placed near the dehiscence of the cribiform plate.
The straight probe proved valuable in delineating the level of the ethmoid plate to isolate the opening of the dehiscence and its course.
This was suggestive for dehiscence of the roof of the cribiform plate.
www.stealthstation.com /physician/ent/cases/image_guided.jsp   (464 words)

 St. J. Physician Sued Over Death Of Newport Woman
The hole, which was not detected in a hospital scan, exposed the brain during the surgery.
The first was that her two prior operations led to an increased risk of a hole in her cribiform plate.
The second was that Jauch allegedly did not tell Flood a definitive test had not been taken to make sure her cribiform plate had no holes.
www.caledonianrecord.com /pages/local_news/story/60b72ee05   (668 words)

 ethmoidal Ethmoidal Sinusitis And Tinnitus Web-Site
Anatomy of the Cribiform Plate lamina cribrosa horizontal lamina.
The Organ The superior meatus is a short oblique passage extending about half-way along the upper border of the middle concha the posterior ethmoidal cells open into the front part of this meatus.
This portion consists of two thin triangular plates, the orbital plates, which form the vaults of the orbits, and are separated from one another by a median gap, the ethmoidal notch.
guillain.blog3.bloggedsite.com /1143310170.html   (928 words)

Each nerve cell has a receptor site that reacts with an odorant generating an impulse that is sent through the cribiform plate to the olfactory bulb in the brain.
Unlike the sense of taste where taste buds send a message from nerve cell to nerve cell to nerve cell to nerve cell to the brain…the sense of smell is directly transmitted.
One end of a neuron receives stimulus from an odorant; the other end of the neuron reaches across the cribiform plate directly into the brain.
www.thewinekey.com /Pernod_Ricard/praromas.htm   (957 words)

 Advance Mold Remediation - Mold Glossary   (Site not responding. Last check: 2007-10-22)
These fungi have a tendency to invade blood vessels (particularly arteries) and enter the brain via the blood vessels and by direct extension through the cribiform plate.
It is extremely difficult to identify a specific genera of mushroom using standard culture plate techniques.
Some basidiomycete spores can be identified by spore morphology, however; some care should be exercised with regard to specific identification.
www.advancemoldenv.com /glossary.asp   (6317 words)

 Chapter 6, Slide 3   (Site not responding. Last check: 2007-10-22)
The periodontal ligament is anchored in cementum of the tooth and the bundle bone layer of the cribriform plate.
Both cementum and cribriform plate can show arrest lines indicating alterations in the deposition of cementum and bone by cementoblasts and osteoblasts, respectively.
Legend: A, Dentin; B, Cementum; C, Periodontal ligament; D, Osteon; E, Interstitial space; F, Arrest lines in cribiform plate; G, Cribiform plate.
dentistry.ouhsc.edu /intranet-WEB/Courses/CELL8002/Chapter6/6.3.html   (86 words)

 Anatomy Tables - Submandibular Region, Nasal & Oral Cavities
superior part of the nasal septum that descends from the cribiform plate; superior to the cribiform plate it is the crista galli
Due to the failure of the maxillary prominence to fuse with the medial nasal prominence (tongue fails to move out of the groove between these two plates).
Repair is usually done in the second year of life.
med.umich.edu /lrc/coursepages/m1/anatomy/html/head/submand_tables.html   (1690 words)

 Olfactory Groove Tumors   (Site not responding. Last check: 2007-10-22)
Bicoronal approach with resection of intracranial frontal lobe meningioma with extension through the cribiform plate and into the paranasal sinuses
o Orbital plate of frontal bone, ethmoid roof, posterior cribiform plate becomes planum sphenoidale, laterally lesser wing of sphenoid
o Cribiform plate: 1mm thick and perforated for olfactory cell central processes; 4-5.4 mm wide increases in width as heads posterior
www.headandneckrehab.com /HTML/olfactory.html   (694 words)

 Blunt_trauma8   (Site not responding. Last check: 2007-10-22)
Basal skull fractures involve the floor of the skull, including fractures of the cribiform plate, frontal bones, sphenoid bones, temporal bone and occipital bones.
Most basal skull fractures do not require treatment and the fractures tend to heal themselves.
Persistent CSF leakage may warrant operative repair of the leakage, particularly CSF leaks which are related to frontal bone and cribiform plate fractures.
www.glaciermedicaled.com /facialtrauma/08basal_skull_fx.html   (154 words)

 Comparative Vertebrate Anatomy - Lecture Notes 3
parachordal cartilages expand and join; along with the notochord from the basal plate
cribiform plate of ethmoid and several conchae (or ethmoturbinal bones)
Another ethmoid bone, the cribiform plate, separates the nasal chamber from the brain cavity within the skull.
people.eku.edu /ritchisong/342notes3.htm   (593 words)

 Endoscopic Sinus Surgery with Resulting Damage - Medical Illustration
This medical illustration shows forceps inserted into the nasal cavity to cut away the ethmoid sinuses during an ethmoidectomy and sphenoidotomy.
A normal anatomy drawing shows healthy sphenoid sinuses, cerebrospinal fluid, CSF, dura mater, and cribiform plate.
The post-surgical condition indicates CSF leakage and a defect in the cribiform plate.
catalog.nucleusinc.com /generateexhibit.php?ID=10996   (223 words)

 Solar System Changes Lead to Earth Changes, Solar Storm Updates, LifeSpirit Center, Space Weather
FluMist is delivered into the nostrils by a forceful squirt.
This puts infective viruses very close to the brain where they can pass through the thin cribiform plate at the top of the nostrils and enter the brain.
It is not known if such treatment causes encephalitis.
www.lifespirit.org /solar.htm   (7857 words)

 Gross Anatomy Head and Neck Med Scholars   (Site not responding. Last check: 2007-10-22)
Anterior cranial fossa: floor formed by cribiform plate of ethmoid bone, orbital plate of frontal bone, and lesser wing of sphenoid.  Contains frontal lobes of brain and olfactory bulb
Floor: platine process of maxilla and horizontal plate of palatine bone (demonstrate incisive foramen)
Medial wall: ethmoid (perpendicular plate), vomer, and septal cartilage
2006.jetsetelective.com /2006/study/medscholar_headneck2.htm   (1507 words)

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