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Antoine Ferrein
Antoine Ferrein (October 25, 1693 – February 28, 1769) was a French anatomist who was a native of Frespech, which today is a commune in the arrondissement of Villeneuve-sur-Lot. He was a professor at the Collège Royal in Paris, and in 1742 became a member of the Académie des sciences. Ferrein is remembered for his work involving the physiology of voice, and is credited for coining the term ''cordes vocales'' (vocal cords). He postulated that the ligaments of the larynx were analogous to the cords on a violin. He also made the correlation between the size of the glottis and the loudness of a person's voice. There are several anatomical eponyms attributed to Antoine Ferrein, including: * "Ferrein's canal": (rivus lacrimalis); A space between the eyelids when closed and the eyeball through which tears flow to the lacrimal punctum. * "Ferrein's foramen": Hiatus of facial canal that makes passage for the greater petrosal nerve. * "Ferrein's ligament": The thickened external po ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antoine Ferrein
Antoine Ferrein (October 25, 1693 – February 28, 1769) was a French anatomist who was a native of Frespech, which today is a commune in the arrondissement of Villeneuve-sur-Lot. He was a professor at the Collège Royal in Paris, and in 1742 became a member of the Académie des sciences. Ferrein is remembered for his work involving the physiology of voice, and is credited for coining the term ''cordes vocales'' (vocal cords). He postulated that the ligaments of the larynx were analogous to the cords on a violin. He also made the correlation between the size of the glottis and the loudness of a person's voice. There are several anatomical eponyms attributed to Antoine Ferrein, including: * "Ferrein's canal": (rivus lacrimalis); A space between the eyelids when closed and the eyeball through which tears flow to the lacrimal punctum. * "Ferrein's foramen": Hiatus of facial canal that makes passage for the greater petrosal nerve. * "Ferrein's ligament": The thickened external po ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lacrimal Punctum
The lacrimal punctum (plural ''puncta'') or lacrimal point, is a minute opening on the summits of the lacrimal papillae, seen on the margins of the eyelids at the lateral extremity of the lacrimal lake. There are two lacrimal puncta in the medial (inside) portion of each eyelid. Normally, the puncta dip into the lacrimal lake. Together, they function to collect tears produced by the lacrimal glands. The fluid is conveyed through the lacrimal canaliculi to the lacrimal sac, and thence via the nasolacrimal duct to the inferior nasal meatus of the nasal passage. Additional images File:Lacrimal punctum.jpg, A close up of a lacrimal punctum. File:Lower lacrimal punctum.jpg, Lower lacrimal punctum through slit lamp biomicroscope See also * Imperforate lacrimal punctum *Lacrimal apparatus The lacrimal apparatus is the physiological system containing the Orbit (anatomy), orbital structures for tears, tear production and drainage.Cassin, B. and Solomon, S. ''Dictionary of Eye Termino ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
People From Villeneuve-sur-Lot
A person ( : people) is a being that has certain capacities or attributes such as reason, morality, consciousness or self-consciousness, and being a part of a culturally established form of social relations such as kinship, ownership of property, or legal responsibility. The defining features of personhood and, consequently, what makes a person count as a person, differ widely among cultures and contexts. In addition to the question of personhood, of what makes a being count as a person to begin with, there are further questions about personal identity and self: both about what makes any particular person that particular person instead of another, and about what makes a person at one time the same person as they were or will be at another time despite any intervening changes. The plural form "people" is often used to refer to an entire nation or ethnic group (as in "a people"), and this was the original meaning of the word; it subsequently acquired its use as a plural form of per ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1769 Deaths
Events January–March * February 2 – Pope Clement XIII dies, the night before preparing an order to dissolve the Jesuits.Denis De Lucca, ''Jesuits and Fortifications: The Contribution of the Jesuits to Military Architecture in the Baroque Age'' (BRILL, 2012) pp315-316 * February 17 – The British House of Commons votes to not allow MP John Wilkes to take his seat after he wins a by-election. * March 4 – Mozart departs Italy, after the last of his three tours there. * March 16 – Louis Antoine de Bougainville returns to Saint-Malo, following a three-year circumnavigation of the world with the ships '' La Boudeuse'' and '' Étoile'', with the loss of only seven out of 330 men; among the members of the expedition is Jeanne Baré, the first woman known to have circumnavigated the globe. She returns to France some time after Bougainville and his ships. April–June * April 13 – James Cook arrives in Tahiti, on the ship HM Bark ''End ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1693 Births
Events January–March * January 11 – 1693 Sicily earthquake: Mount Etna erupts, causing a devastating earthquake that affects parts of Sicily and Malta. * January 22 – A total lunar eclipse is visible across North and South America. * February 8 – The College of William & Mary in Williamsburg, Virginia is granted a Royal charter. * February 27 – The publication of the first women's magazine, titled ''The Ladies' Mercury'', takes place in London. It is published by the Athenian Society. * March 27 – Bozoklu Mustafa Pasha becomes the new Grand Vizier of the Ottoman Empire, after Sultan Ahmed II appoints him as the successor of Çalık Ali Pasha. April–June * April 4 – Anne Palles becomes the last accused witch to be executed for witchcraft in Denmark, after having been convicted of using powers of sorcery. King Christian V accepts her plea not to be burned alive, and she is beheaded before her body is set afire. * April 5 – The Order of Saint L ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
French Anatomists
French (french: français(e), link=no) may refer to: * Something of, from, or related to France ** French language, which originated in France, and its various dialects and accents ** French people, a nation and ethnic group identified with France ** French cuisine, cooking traditions and practices Fortnite French places Arts and media * The French (band), a British rock band * "French" (episode), a live-action episode of ''The Super Mario Bros. Super Show!'' * ''Française'' (film), 2008 * French Stewart (born 1964), American actor Other uses * French (surname), a surname (including a list of people with the name) * French (tunic), a particular type of military jacket or tunic used in the Russian Empire and Soviet Union * French's, an American brand of mustard condiment * French catheter scale, a unit of measurement of diameter * French Defence, a chess opening * French kiss, a type of kiss involving the tongue See also * France (other) * Franch, a surname * Frenc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hepatic
The liver is a major organ only found in vertebrates which performs many essential biological functions such as detoxification of the organism, and the synthesis of proteins and biochemicals necessary for digestion and growth. In humans, it is located in the right upper quadrant of the abdomen, below the diaphragm. Its other roles in metabolism include the regulation of glycogen storage, decomposition of red blood cells, and the production of hormones. The liver is an accessory digestive organ that produces bile, an alkaline fluid containing cholesterol and bile acids, which helps the breakdown of fat. The gallbladder, a small pouch that sits just under the liver, stores bile produced by the liver which is later moved to the small intestine to complete digestion. The liver's highly specialized tissue, consisting mostly of hepatocytes, regulates a wide variety of high-volume biochemical reactions, including the synthesis and breakdown of small and complex molecules, many ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bile Canaliculi
Bile canaliculus (plural:bile canaliculi; also called bile capillaries) is a thin tube that collects bile secreted by hepatocytes. The bile canaliculi empty into a series of progressively larger bile ductules and ducts, which eventually become common hepatic duct. The bile canaliculi empty directly into the Canals of Hering. Hepatocytes are polyhedral in shape, therefore having no set shape or design, although they are made of cuboidal epithelial cells. They have surfaces facing the sinusoids, (called sinusoidal faces) and surfaces which contact other hepatocytes, (called lateral faces). Bile canaliculi are formed by grooves on some of the lateral faces of these hepatocytes A hepatocyte is a cell of the main parenchymal tissue of the liver. Hepatocytes make up 80% of the liver's mass. These cells are involved in: * Protein synthesis * Protein storage * Transformation of carbohydrates * Synthesis of cholesterol, .... Microvilli are present in the canaliculi. External link ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Renal
The kidneys are two reddish-brown bean-shaped organs found in vertebrates. They are located on the left and right in the retroperitoneal space, and in adult humans are about in length. They receive blood from the paired renal arteries; blood exits into the paired renal veins. Each kidney is attached to a ureter, a tube that carries excreted urine to the bladder. The kidney participates in the control of the volume of various body fluids, fluid osmolality, acid–base balance, various electrolyte concentrations, and removal of toxins. Filtration occurs in the glomerulus: one-fifth of the blood volume that enters the kidneys is filtered. Examples of substances reabsorbed are solute-free water, sodium, bicarbonate, glucose, and amino acids. Examples of substances secreted are hydrogen, ammonium, potassium and uric acid. The nephron is the structural and functional unit of the kidney. Each adult human kidney contains around 1 million nephrons, while a mouse kidney contains only ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Medullary Ray (anatomy)
In anatomy, a medullary ray (Ferrein's pyramid) is the middle part of a cortical lobule (or renal lobule). Each consists of a group of nephrons in the renal cortex. Their name is potentially misleading, as "medullary" refers to their destination, not their location. They travel perpendicular to the capsule, and extend from the cortex to the medulla. They may be visualised during urography Pyelogram (or pyelography or urography) is a form of imaging of the renal pelvis and ureter. Types include: * #Intravenous pyelogram, Intravenous pyelogram – In which a contrast solution is introduced through a vein into the circulatory system. .... Additional Images File:Slide2iii.JPG, Medullary rays File:Slide23iii.JPG, Medullary rays References External links * — "Urinary System: kidney, H&E, cortex and medullary ray" * — "Urinary System: neonatal kidney" * {{genitourinary-stub Kidney anatomy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Temporomandibular Joint
In anatomy, the temporomandibular joints (TMJ) are the two joints connecting the jawbone to the skull. It is a bilateral synovial articulation between the temporal bone of the skull above and the mandible below; it is from these bones that its name is derived. This joint is unique in that it is a bilateral joint that functions as one unit. Since the TMJ is connected to the mandible, the right and left joints must function together and therefore are not independent of each other. Structure The main components are the joint capsule, articular disc, mandibular condyles, articular surface of the temporal bone, temporomandibular ligament, stylomandibular ligament, sphenomandibular ligament, and lateral pterygoid muscle. Capsule The articular capsule (capsular ligament) is a thin, loose envelope, attached above to the circumference of the mandibular fossa and the articular tubercle immediately in front; below, to the neck of the condyle of the mandible. Its loose attachment to th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greater Petrosal Nerve
The greater petrosal nerve (or greater superficial petrosal nerve) is a nerve in the skull that branches from the facial nerve; it forms part of a chain of nerves that innervate the lacrimal gland. The preganglionic parasympathetic axons of this nerve synapse in the pterygopalatine ganglion. Structure Preganglionic parasympathetic fibres arise in the superior salivary nucleus of the pontine tegmentum. They join with general somatic sensory and special sensory fibres to form the nervus intermedius. The nervus intermedius exits the cranial cavity at the internal auditory meatus, and joins with the motor root of the facial nerve at the geniculate ganglion. While preganglionic parasympathetic fibres pass through the geniculate ganglion, they neither synapse, nor have their cell bodies located there. Preganglionic parasympathetic fibres exit the geniculate ganglion as the greater petrosal nerve. It enters the middle cranial fossa through the hiatus of the facial canal, along with the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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