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Cupula Pentagonal 3D
A cupula is a small, inverted cup or dome-shaped cap over a structure, including: * Ampullary cupula, a structure in the vestibular system, providing the sense of spatial orientation * Cochlear cupula, a structure in the cochlea * Cupula of the pleura, related to the lungs *The cervical parietal pleura in the thorax *A layer in the otolith organs * The ''cupula optica'', or optic cup, in embryological development of the eye * Cup-like structure fitted over the eye during electrophysiology study * Suprapleural membrane The suprapleural membrane, eponymously known as Sibson's fascia, is a structure described in human anatomy. It is named for Francis Sibson. Anatomy It refers to a thickening of connective tissue that covers the apex of each human lung. It is an ... See also * Cupola (other) * Copula (other) * Cupule (other) {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ampullary Cupula
The ampullary cupula, or cupula, is a structure in the vestibular system, providing the sense of spatial orientation. The cupula is located within the ampullae of each of the three semicircular canals. Part of the crista ampullaris, the cupula has embedded within it hair cells that have several stereocilia associated with each kinocilium. The cupula itself is the gelatinous component of the crista ampullaris that extends from the crista to the roof of the ampullae. When the head rotates, the endolymph filling the semicircular ducts initially lags behind due to inertia. As a result, the cupula is deflected opposite the direction of head movement. As the endolymph pushes the cupula, the stereocilia is bent as well, stimulating the hair cells within the crista ampullaris. After a short time of continual rotation however, the endolymph's acceleration normalizes with the rate of rotation of the semicircular ducts. As a result, the cupula returns to its resting position and the hair ce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cochlear Cupula
The cochlear cupula is a structure in the cochlea The cochlea is the part of the inner ear involved in hearing. It is a spiral-shaped cavity in the bony labyrinth, in humans making 2.75 turns around its axis, the modiolus (cochlea), modiolus. A core component of the cochlea is the organ of Cort .... It is the apex of the cochlea. The bony canal of the cochlea takes two and three-quarter turns around the modiolus. The modiolus is about 35 mm in length, and diminishes gradually in diameter from the base to the summit, where it terminates in the cupula. The cupula points towards the anterosuperior area of the medial wall of the tympanic cavity. References Auditory system {{anatomy-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cupula Of The Pleura
The pleurae (: pleura) are the two flattened closed sacs filled with pleural fluid, each ensheathing each lung and lining their surrounding tissues, locally appearing as two opposing layers of serous membrane separating the lungs from the mediastinum, the inside surfaces of the surrounding chest walls and the diaphragm. Although wrapped onto itself resulting in an apparent double layer, each lung is surrounded by a single, continuous pleural membrane. The portion of the pleura that covers the surface of each lung is often called the visceral pleura. This can lead to some confusion, as the lung is not the only visceral organ covered by the pleura. The pleura typically dips between the lobes of the lung as ''fissures'', and is formed by the invagination of lung buds into each thoracic sac during embryonic development. The portion of the pleura seen as the outer layer covers the chest wall, the diaphragm and the mediastinum and is often also misleadingly called the parietal pleu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parietal Pleura
The pleurae (: pleura) are the two flattened closed sacs filled with pleural fluid, each ensheathing each lung and lining their surrounding tissues, locally appearing as two opposing layers of serous membrane separating the lungs from the mediastinum, the inside surfaces of the surrounding chest walls and the diaphragm. Although wrapped onto itself resulting in an apparent double layer, each lung is surrounded by a single, continuous pleural membrane. The portion of the pleura that covers the surface of each lung is often called the visceral pleura. This can lead to some confusion, as the lung is not the only visceral organ covered by the pleura. The pleura typically dips between the lobes of the lung as ''fissures'', and is formed by the invagination of lung buds into each thoracic sac during embryonic development. The portion of the pleura seen as the outer layer covers the chest wall, the diaphragm and the mediastinum and is often also misleadingly called the parietal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Otolith Organs
An otolith (, ' ear + , ', a stone), also called otoconium, statolith, or statoconium, is a calcium carbonate structure in the saccule or utricle of the inner ear, specifically in the vestibular system of vertebrates. The saccule and utricle, in turn, together make the ''otolith organs''. These organs are what allows an organism, including humans, to perceive linear acceleration, both horizontally and vertically (gravity). They have been identified in both extinct and extant vertebrates. Counting the annual growth rings on the otoliths is a common technique in estimating the age of fish. Description Endolymphatic infillings such as otoliths are structures in the saccule and utricle of the inner ear, specifically in the vestibular labyrinth of all vertebrates (fish, amphibians, reptiles, mammals and birds). In vertebrates, the saccule and utricle together make the ''otolith organs''. Both statoconia and otoliths are used as gravity, balance, movement, and directional indicator ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Optic Cup (embryology)
During embryonic development of the eye, the outer wall of the bulb of the optic vesicles becomes thickened and invaginated, and the bulb is thus converted into a cup, the optic cup (or ophthalmic cup), consisting of two strata of cells. These two strata are continuous with each other at the cup margin, which ultimately overlaps the front of the lens and reaches as far forward as the future aperture of the pupil. The optic cup is part of the diencephalon and gives rise to the retina The retina (; or retinas) is the innermost, photosensitivity, light-sensitive layer of tissue (biology), tissue of the eye of most vertebrates and some Mollusca, molluscs. The optics of the eye create a focus (optics), focused two-dimensional ... of the eye. References External links Overview at temple.edu Embryology of nervous system Eye {{eye-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electrophysiology Study
A cardiac electrophysiology study (EP test or EP study) is a Invasiveness of surgical procedures, minimally invasive procedure using catheters introduced through a vein or artery to record electrical activity from within the heart. This electrical activity is recorded when the heart is in a normal rhythm (sinus rhythm) to assess the conduction system of the heart and to look for additional electrical connections (accessory pathways), and during any Heart arrhythmia, abnormal heart rhythms that can be induced. EP studies are used to investigate the cause, location of origin, and best treatment for various abnormal heart rhythms, and are often followed by a catheter ablation during the same procedure. Preparation It is important for patients not to eat or drink for up to 12 hours before the procedure. This is to prevent vomiting, which can result in aspiration, and also cause severe bleeding from the insertion site of the catheter. Failure to follow this simple preparation may resu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Suprapleural Membrane
The suprapleural membrane, eponymously known as Sibson's fascia, is a structure described in human anatomy. It is named for Francis Sibson. Anatomy It refers to a thickening of connective tissue that covers the apex of each human lung. It is an extension of the endothoracic fascia that exists between the parietal pleura and the thoracic cage. Sibson muscular part is originated from scalenus minimus muscle. Fascial part is originated from Endothoracic Fascia. It attaches to the internal border of the first rib and the transverse processes of vertebra Each vertebra (: vertebrae) is an irregular bone with a complex structure composed of bone and some hyaline cartilage, that make up the vertebral column or spine, of vertebrates. The proportions of the vertebrae differ according to their spina ... C7. It extends approximately an inch more superiorly than the superior thoracic aperture, because the lungs themselves extend higher than the top of the ribcage. Clinical significanc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cupola (other)
A cupola is a relatively small, most often dome-like, tall structure on top of a building. Cupola may also refer to: Science, mathematics, and technology * Cupola (cave formation), a recess in the ceiling of a lava tube * Cupola (geology), a type of igneous rock intrusion * Cupola (geometry), a geometric solid * Cupola (ISS module), an observation dome on the International Space Station * Cupola (military), a small gun turret mounted on a larger one * Cupola gecko, a species of gecko * Cupola sign, in medicine, a radiologic sign * Cupola furnace, a variety of small blast furnace * Reverberatory furnace, for smelting some non-ferrous metals * Cupola, an observation area on top of a railway caboose Other uses * Sicilian Mafia Commission or Cupola, a body of Sicilian Mafia leaders * The Cupola (mountain), Tasmania, Australia * ''The Cupola'', the yearbook of Western New England University Western New England University is a private university in Springfield, Massachusetts. Aca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Copula (other)
Copula is a Latinate term meaning 'link' which may refer to: Arts and entertainment * '' Beatmania IIDX 23: Copula'', a 2015 rhythm game * Copula (music), a polyphonic texture Biology * ''Copula'' (cnidarian), a genus of box jellyfish * Copula linguae, an embryonic structure of the tongue Linguistics * Copula (linguistics), a word used to link subject and predicate ** Indo-European copula *** Romance copula Mathematics * Copula (probability theory), a function linking marginal variables into a multivariate distribution ** Copulas in signal processing is a ''d''-dimensional copula if ''C'' is a joint cumulative distribution function of a ''d''-dimensional random vector on the unit cube ,1d with uniform A uniform is a variety of costume worn by members of an organization while usually participating in that organization's activity. Modern uniforms are most often worn by armed forces and paramilitary organizations such as police, emergency serv ... marginals. I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
