Perpendicular plate of ethmoid bone
- Perpendicular plate of ethmoid bone
Infobox Bone
Name = Perpendicular plate of ethmoid bone
Latin = lamina perpendicularis ossis ethmoidalis
GraySubject = 36
GrayPage = 154
Caption = Perpendicular plate of ethmoid. Shown by removing the right labyrinth.
Caption2 = Ethmoid bone from behind.
MeshName =
MeshNumber =
DorlandsPre =
DorlandsSuf =
The perpendicular plate of the ethmoid bone (vertical plate) 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. The anterior border articulates with the spine of the frontal bone and the crest of the nasal bones.
The posterior border articulates by its upper half with the sphenoidal crest, by its lower with the vomer.
The inferior border is thicker than the posterior, and serves for the attachment of the septal cartilage of the nose.
The surfaces of the plate are smooth, except above, where numerous grooves and canals are seen; these lead from the medial foramina on the cribriform plate and lodge filaments of the olfactory nerves.
=Additional
External links
* - "Diagram of skeleton of medial (septal) nasal wall."
*
* - "Nasal septum, lateral view"
* (NormanAnatomyFig|nasalseptumbonescarti)
Wikimedia Foundation.
2010.
Look at other dictionaries:
perpendicular plate of ethmoid bone — lamina perpendicularis ossis ethmoidalis … Medical dictionary
Perpendicular plate — can refer to: * Perpendicular plate of ethmoid bone * Perpendicular plate of palatine bone … Wikipedia
Ethmoid bone — Bone: Ethmoid bone Cranial bones … Wikipedia
perpendicular plate — per·pen·dic·u·lar plate .pər pən dik yə lər n 1) a flattened bony lamina of the ethmoid bone that is the largest bony part assisting in forming the nasal septum 2) a long thin vertical bony plate forming part of the palatine bone compare… … Medical dictionary
Orbital lamina of ethmoid bone — Ethmoid bone from the right side. (Lamina papyracea visible at center left.) … Wikipedia
plate — 1. [TA] In anatomy, a thin, relative flat, structure. SYN: lamina [TA]. 2. A metal bar perforated for screws applied to a fractured bone to maintain the ends in apposition. 3. The agar layer within a Petri dish or similar … Medical dictionary
Bone — is the substance that forms the skeleton of the body. It is composed chiefly of calcium phosphate and calcium carbonate. It also serves as a storage area for calcium, playing a large role in calcium balance in the blood. The 206 bones in the body … Medical dictionary
Ethmoid sinus — Bone: Ethmoid sinus Paranasal sinuses … Wikipedia
Bone — This article is about the skeletal organ. For other uses, see Bone (disambiguation) and Bones (disambiguation). For the tissue, see Osseous tissue. Drawing of a human femur Bones are rigid organs that constitute part of the endoskeleton of… … Wikipedia
Palatine bone — Bone: Palatine bone Permanent teeth of upper dental arch, seen from below. (Horizontal part of palatine bone visible at bottom.) … Wikipedia
