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The lateral aperture, lateral aperture of fourth ventricle or foramen of Luschka (after anatomist Hubert von Luschka) is an opening at the lateral extremity
Lateral_aperture
Structure within the human brain
other openings of the fourth ventricle are the lateral apertures - one on either side. The median aperture varies in size but accounts for most of the outflow
Median_aperture
Topics referred to by the same term
inferior Apertura thoracis superior Lateral aperture (foramen of Luschka), an opening in each lateral extremity of the lateral recess of the fourth ventricle
Aperture_(disambiguation)
the fourth ventricle attains its maximum width. Each lateral recess opens into a lateral aperture (also known as the foramen of Luschka) that opens into
Lateral_recess
Hole or opening through which light travels
If the aperture stop of a lens is located at the front focal plane of the lens, then it becomes image-space telecentricity, i.e., the lateral size of
Aperture
Cavities within the human brain
subarachnoid cisterns via three small foramina: the central median aperture and the two lateral apertures. According to the traditional understanding of cerebrospinal
Ventricular_system
Opening in the human skull
The piriform aperture, pyriform aperture, or anterior nasal aperture is a pear-shaped opening in the human skull. Its long axis is vertical, and narrow
Piriform_aperture
Subarachnoid cistern in front of the pons
situated ventral to the pons. It contains the basilar artery. Each lateral aperture opens into the pontine cistern just posterior to the cranial nerve
Prepontine_cistern
Structure within the human brain
subarachnoid space of the spinal cord through two lateral apertures and a single, midline median aperture. The fourth ventricle has a roof at its upper (posterior)
Fourth_ventricle
Abnormal increase in cerebrospinal fluid in the ventricles of the brain
The CSF then exits the fourth ventricle through the median aperture and lateral aperture. It goes into the subarachnoid space or central canal of the
Hydrocephalus
Meningeal structure
at the natural openings between the ventricles, the median aperture, and the lateral aperture. The pia firmly adheres to the surface of the brain and loosely
Pia_mater
Chordate neural structure
communicate with the also CSF-filled subarachnoid space via the median and lateral apertures.[page needed] The word "dorsal" originates from Old French dorsalis
Dorsal_nerve_cord
Clear, colorless bodily fluid found in the brain and spinal cord
openings – the central canal of the spinal cord, the median aperture, and the two lateral apertures. CSF is present within the subarachnoid space, which covers
Cerebrospinal_fluid
Opening at the top of the thoracic cavity (area enclosed by the ribcage)
The superior thoracic aperture, also known as the thoracic outlet, or thoracic inlet refers to the opening at the top of the thoracic cavity. It is also
Superior_thoracic_aperture
Plane representing the boundary between the pelvic and abdominal cavities
The pelvic inlet or superior aperture of the pelvis is a planar surface which defines the boundary between the pelvic cavity and the abdominal cavity (or
Pelvic_inlet
Geometric shape
The aperture of a right circular cone is the maximum angle between two generatrix lines; if the generatrix makes an angle θ to the axis, the aperture is
Cone
Aiming device
sight inserts, and adjustable aperture mechanisms. Front aperture size is a compromise between a tight enough aperture to clearly define the aiming point
Iron_sights
Spaces around the brain filled with cerebrospinal fluid
Surrounds the ventral aspect of the pons. It receives CSF via the paired lateral apertures. It contains: The basilar artery and the origin of the anterior inferior
Subarachnoid_cisterns
laryngopharynx larynx lateral aperture lateral cervical muscle lateral corticospinal tract lateral cricoarytenoid muscle lateral cuneate nucleus lateral dorsal nucleus
Index_of_anatomy_articles
Facial bone
paired irregular bone, situated at the upper and lateral part of the face and forming part of the lateral wall and floor of the orbit, of the temporal fossa
Zygomatic_bone
Part of the pelvis
inferior aperture or pelvic outlet. It is an important component of pelvimetry. It has the following boundaries: anteriorly: the pubic arch laterally: the
Pelvic_outlet
Vocal structure
The laryngeal inlet (laryngeal aditus, laryngeal aperture) is the opening that connects the pharynx and the larynx. Its borders are formed by:[citation
Laryngeal_inlet
Central organ of the human nervous system
the fourth ventricle. Three separate openings, the middle and two lateral apertures, drain the cerebrospinal fluid from the fourth ventricle to the cisterna
Human_brain
Human disease caused by paramyxovirus
dilatation of the lateral and third ventricles, obstruction of the interventricular foramina, or obstruction of the median and lateral apertures. Ependymal cells
Mumps
Large part of the skull front behind the eye socket
rotundum is a circular aperture at its anterior and medial part; it transmits the maxillary nerve. The foramen ovale is behind and lateral to this; it transmits
Greater_wing_of_sphenoid_bone
Part of the brain
the flow of cerebrospinal fluid as it exits through the medial and lateral apertures of the fourth ventricle. Human cerebellum anterior view Human brain
Cerebellar_tonsil
Bone plates projecting from the sphenoid bone of the skull
medial pterygoid plate and a lateral pterygoid plate, the latter of which serve as the origins of the medial and lateral pterygoid muscles. The medial
Pterygoid processes of the sphenoid
Pterygoid_processes_of_the_sphenoid
Medical intervention
sutured to the peroneus longus. Then, an aperture is created from the postero-superior side of the fibula to the lateral malleolar tip. The tendon is then passed
Evans_technique
Form of sonar using post-processing of sonar data
used in the formation of a synthetic aperture. Due to currents, heave or sway, a sensor platform may undergo lateral movement known as "crabbing", which
Synthetic-aperture_sonar
Part of the body of a gastropod or snail
possess an operculum that seals the opening of the shell, known as the aperture, which provides further protection. The study of mollusc shells is known
Gastropod_shell
Radar 2D mapping technique
where D {\displaystyle D} is the required lateral extent of the target. At this point the synthetic aperture is within the target nearfield region and
Inverse synthetic-aperture radar
Inverse_synthetic-aperture_radar
Length of area in visual focus
subject (object to be imaged), the acceptable circle of confusion size, and aperture. The approximate depth of field can be given by: DOF ≈ 2 u 2 N c f 2 {\displaystyle
Depth_of_field
Failure of a lens to focus all colors on the same point
1088/0022-3727/4/11/308. S2CID 250810329. Lateral chromatic aberration is a chief ray aberration and is caused by the location of the aperture. What is shown here is an
Chromatic_aberration
Structure in the ventricles of the brain
fluid. There is a choroid plexus in each of the four ventricles. In the lateral ventricles, it is found in the body, and continued in an enlarged amount
Choroid_plexus
Space along the urethra in the prostate
the floor of which is perforated by numerous apertures, the orifices of the prostatic ducts from the lateral lobes of the prostate. This article incorporates
Prostatic_sinus
uses synthetic aperture sonar in medical applications and proved that a synthetic aperture system gives a significantly higher lateral resolution than
Synthetic_aperture_ultrasound
Part of the digestive system
sigmoid colon at the superior aperture of the lesser pelvis. It is covered by peritoneum only on its anterior and lateral surfaces. Female pelvis and its
Iliac_colon
Deviation from perfect paraxial optical behavior
is termed the longitudinal aberration, and O′1R the lateral aberration of the pencils with aperture u2. If the pencil with the angle u2 is that of the
Optical_aberration
Extinct genus of ammonites
umbilicus and moderately high aperture. The adventitious lobe of the suture, which lies between the ventral and lateral lobes, is rounded. Truyolsoceras
Truyolsoceras
Opening in the fascia lata of the thigh
upper mid part of the fascia lata of the thigh. It lies 3–4 cm below and lateral to the pubic tubercle and is about 3 cm long and 1.5 cm wide. Just inferolateral
Saphenous_opening
Microscopy technique
below the aperture, the optical resolution of transmitted or reflected light is limited only by the diameter of the aperture. In particular, lateral resolution
Near-field scanning optical microscope
Near-field_scanning_optical_microscope
Lower torso of the human body
greater, or false, pelvis above it. The pelvic inlet, or superior pelvic aperture, which leads into the lesser pelvis, is bordered by the promontory, the
Pelvis
Compound structure in the skull
deeper than the anterior cranial fossa, is narrow medially and widens laterally to the sides of the skull. It is separated from the posterior cranial
Middle_cranial_fossa
Consonantal sound represented by ⟨β⟩ in IPA
involve a near complete oral closure to articulations involving a degree of aperture quite close to vocalization Engstrand (2004:167) Žovtobrjux & Kulyk (1965:121–122)
Voiced_bilabial_fricative
Space in the brain
ventricle communicates with the cistern via the unpaired midline median aperture. It is continuous inferiorly with the subarachnoid space of the spinal
Cisterna_magna
Camera technique
"preset" aperture, which lets the photographer set the lens to working aperture, and then quickly switch between working aperture and full aperture without
Tilt–shift_photography
Geodesy and remote sensing technique
Interferometric synthetic aperture radar, abbreviated InSAR (or deprecated IfSAR), is a radar technique used in geodesy and remote sensing. This geodetic
Interferometric synthetic-aperture radar
Interferometric_synthetic-aperture_radar
Supportive structures in the nose
septal nasal cartilage, lateral nasal cartilage, major alar cartilage (greater alar cartilage, or cartilage of the aperture), minor alar cartilage (lesser
Nasal_cartilages
Bones used to sit
posterior bony protuberance on the superior ramus of the ischium. It marks the lateral boundary of the pelvic outlet. When sitting, the weight is frequently placed
Ischial_tuberosity
Genus of molluscs
virtually parallel, flaring slightly at the aperture. The sides however converge on the aperture which is laterally narrowed, flaring just before. The siphuncle
Sinclairoceras
Protrusion of abdominal contents through the inguinal canal in the pelvis
pads are hard and intrude into the hernia aperture, they may cause scarring and enlargement of the aperture. In addition, most trusses with older designs
Inguinal_hernia
Topics referred to by the same term
structure Diaphragm (optics), a stop in the light path of a lens, having an aperture that regulates the amount of light that passes Diaphragm (acoustics), a
Diaphragm
Camera model
and SCN modes. Raw is available in Program, Tv (shutter priority), Av (aperture priority), Manual, and Custom modes) ISO sensitivity 80–3200 and auto (in
Canon_PowerShot_S95
X-shaped support substructure
usually seen with two diagonal supports placed in an X-shaped manner. Under lateral force (such as wind or seismic activity) one brace will be under tension
Cross_bracing
Passage in upper jaw bone
the margin of the anterior nasal aperture. Thereupon, it passes along the inferior rim of the anterior nasal aperture between the nasal cavity (superiorly)
Canalis_sinuosus
Organ located in innermost part of ear
the innermost part of each ear, the inner ear. The three canals are the lateral, anterior and posterior semicircular canals. They are the part of the bony
Semicircular_canals
Surgical incision of the perineum and the posterior vaginal wall
usually performed during the second stage of labor to quickly enlarge the aperture, allowing the baby to pass through. The incision, which can be done from
Episiotomy
Medical imaging technique of the heart
and right apertures are combined to give the axial and lateral velocity components. The positions and the relative angles between apertures need to be
Doppler_echocardiography
Small cavity surrounding the bones of the middle ear
bones that transmit vibrations used in the detection of sound. On its lateral surface, it abuts the external auditory meatus (ear canal) from which it
Tympanic_cavity
Basal organ of a vascular plant
were receiving and recorded the lateral root density, amount of lateral roots, and the general architecture of the lateral roots. To identify the function
Root
Body cavity surrounded by the rib cage
thoracic cavity, a superior thoracic aperture known as the thoracic inlet and a lower inferior thoracic aperture known as the thoracic outlet. The thoracic
Thoracic_cavity
1926, has a depressed, breviconic shell, with an elliptical transverse aperture, without a hyponomic sinus, and a small, subventral siphuncle. The phragmocone
Grimsbyoceras
Openings from the nasal cavity to the throat
The choanae (sing.: choana), posterior nasal apertures or internal nostrils are two openings found at the back of the nasal passage between the nasal
Choana
Part of an eye
types. In optical terms, the anatomical pupil is the eye's aperture and the iris is the aperture stop. The image of the pupil as seen from outside the eye
Pupil
Species of gastropod
with a suture that is scarcely marked. The aperture is broadly ovate, having the outer lip produced laterally beyond the line of the spire, and further
Melanella_perplexa
Photographic lens
Triplet/Tessar type master lens group behind the aperture. Wide-angle lens group in front of the aperture to reduce the image size. Nikkor F 13mm f/5.6 -
Nikkor_13mm_f/5.6
Idealized model of light
the entrance pupil and exit pupil are images of the aperture stop, for a real image pupil the lateral distance of the marginal ray from the optical axis
Ray_(optics)
Optical device
perspective preserved. To produce a reasonably clear projected image, the aperture is typically smaller than 1/100 the distance from the screen. As the pinhole
Camera_obscura
Process of enlarging the apparent size of something
diffraction. In practice it is considered to be 2× the aperture in millimetres or 50× the aperture in inches; so, a 60 mm diameter telescope has a maximum
Magnification
of measurement) an aperture can be placed on top of the object. In this configuration only rays from the measuring spot (aperture) hit the lens. The image
Conoscopy
Species of gastropod
large and laterally compressed. The aperture is remarkably high and oblong, displaying lateral compression. The upper part of the aperture is sharply
Amnicola_ricardi
Transverse or steerable propulsion device in a watercraft
water, but this can be mitigated through proper fairing aft of the tunnel aperture. Ship operators should take care to prevent fouling of the tunnel and impeller
Maneuvering_thruster
Species of gastropod
Oncomelania hupensis hupensis. The ribs on the shell and varix surrounding the aperture are clearly visible, and a pair of eyes and a pair of tentacles are also
Oncomelania_hupensis
2011 video game
single-player campaign, players control Chell, who navigates the dilapidated Aperture Science Enrichment Center during its reconstruction by the supercomputer
Portal_2
Type of chromatic aberration in photography
the lens than lateral chromatic aberration is, so the purple fringing can be very dependent on f-number: a larger f-number (smaller aperture) reduces axial
Purple_fringing
Structure within the human brain
diencephalon between the two thalami, in the midline between the right and left lateral ventricles, and is filled with cerebrospinal fluid (CSF). Running through
Third_ventricle
Opening between the true vocal cords and the arytenoid cartilages of the larynx
(~23 mm) in males than in females (17–18 mm). The rima glottidis is an aperture between the two true vocal cords anteriorly, and the bases and vocal process
Rima_glottidis
Species of gastropod
resembles that of the genus Streptostele, but is characterized by three-fold apertural dentition and just under six whorls. This taxon may represent a new genus
Gulella_streptostelopsis
Species of gastropod
obtuse . The suture is deep. The shell contains four convex whorls. The aperture is semi-circular, with five teeth, one prominent on the parietal margin;
Vertigo_ventricosa
Method of microscopic imaging
one constant function (e.g. a field of illumination or an aperture stop) moving laterally by a known amount with respect to another constant function
Ptychography
Species of land snail
The width of the shell is 2 mm. The aperture of the shell is protruded. There are 13-15 denticles within the aperture about 400 μm from the lip. Views of
Bensonella_plicidens
passes between the two parts of the suspensory ligament and then through an aperture between the arcuate pubic ligament and the transverse ligament of the pelvis
Dorsal_veins_of_the_penis
Extinct genus of molluscs
Barrande in 1877, with a short, anteriorly contracted body chamber and an aperture that is a long transverse slit. (Teichert 1964). The cross section is slightly
Mesoceras
Surgical procedure to enhance or reconstruct a human nose
to the bony margin of the pyriform (pear-shaped) aperture, while the inferior ends of the upper lateral-cartilages are free (unattached). The internal area
Rhinoplasty
Genus of molluscs (fossil)
shallow lateral reentrents at the aperture outlined by growth lines. Otherwise sculpture is lacking. The mature peristome rimming the aperture is simple
Neoaganides
Genus of mollusc
like that of Vitrina, imperforate, with few whorls and with a very large aperture. The shell consists mainly of proteins with only small amounts of calcium
Indrella
Genus of testate amoebae
the posterior lateral margins. The test itself is composed of euglyphid shell plates embedded in a disorganized cement. The test's aperture or "pseudostome"
Porosia
Class of shelled marine molluscs
smaller, have a shell whose widest portion is slightly posterior to its aperture, and have a foot which is disk-like and fringed with tentacles which inverts
Tusk_shell
Photographic lens
occurring most noticeably at the widest focal lengths and apertures. The lens exhibits moderate lateral and longitudinal chromatic aberration; the former is
Sony_FE_28-60mm_F4-5.6
Species of mollusc
above the shell opening (aperture), while the umbilicus is narrow and deep. This spire may erode away with age. The aperture itself is nearly as long
Bayardella_johni
Feature of the human face
ligaments, to the bony margin of the anterior nasal aperture, while the inferior ends of the lateral cartilages are free (unattached). The three or four
Human_nose
Digital single-lens reflex camera
include dual SD card slots, 1080p video recording, automatic correction of lateral chromatic aberration, and two user-customizable modes. The D7000 also introduces
Nikon_D7000
Subdiscipline of measurement and signature intelligence
include line-of-sight (LOS), over-the-horizon, synthetic aperture radar (SAR), inverse synthetic aperture radar (ISAR) and multistatic. It involves the active
Radar_MASINT
Largest of the paranasal sinuses, and drains into the middle meatus of the nose
disarticulated bone, a large, irregular aperture that communicates with the nasal cavity. In the articulated skull this aperture is much reduced in size by the
Maxillary_sinus
Genus of molluscs (fossil)
ribs with long secondaries that come off of low lateral tubercles; and lappets flanking the aperture. The Jurassic of Spain Sepkoski, Jack (2002). "Sepkoski's
Otoites
Extinct genus of nautiloids
slightly oblique and may have faint lateral lobes. The siphuncle is central or offset, probably ventrally. The aperture is strongly oblique, sloping adapically
Plagiostomoceras
narrowly rounded with a shallow hyponomic sinus; the aperture open, sutures with shallow lateral lobes. The siphuncle is close to the venter which is
Strandoceras
Extinct genus of nautiloids
the lateral portion. The aperture is contracted. Sutures from broad ventral and dorsal lobes, more narrowly rounded ventro-lateral and dorso-lateral saddles
Gonioceras
Genus of gastropods
anterolateral sinuses. There is no columellar sinus or columellar tooth. The aperture is circular. There is no umbilical septum. The shell contains granular
Sericogyra
Component of a photographic camera
used in the early days of photography. Other mechanisms than the dilating aperture and the sliding curtains have been used; anything which exposes the film
Shutter_(photography)
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LATERAL APERTURE
LATERAL APERTURE
LATERAL APERTURE
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