Urogenital sinus - Urogenital sinus The Urogenital sinus (also known as the persistent cloaca) is a part of the human body while it is an embryo. It is the ventral part of the cloaca, formed after the cloaca seperates from the rectum. It eventually becomes, among other things, the bladder. A Urogenital sinus anomaly is also a rare birth defect in women where the urethra and vagina both open into a common channel. External Links Urologyhealth.org page on Urogenital Sinus anomalies.
Diphallia - death rate from various infections associated with their more complex renal or colorectal systems. It is thought dipallia occurs in the fetus between the 23rd and 25th days of gestation when an injury, chemical stress, or malfunctioning homeobox genes hamper proper function of the caudal cell mass of the fetal mesoderm as the urogenital sinus separates from the genital tubercle and rectum to form the penis..
Sinusitis - assessment and treatment, which may include nasal surgery. Factors which may predispose you to developing sinusitis include: allergies; structural problems such as a deviated nasal septum; smoking; nasal polyps. Recent advances in the treatment of sinusitis is a type of surgery called FESS - Functional endoscopic sinus surgery, whereby diseases in the sinuses are cleared and normal clearance from the sinuses are restored by removing the anatomical and pathological variations that predispose to sinusitis..
Sinus - Sinus A sinus is a pouch or cavity in any organ or tissue, or an abnormal cavity or passage caused by the destruction of tissue. The term is applied to a large number and variety of structures in the human body, such as a dilated portion of a blood vein, a chronically infected tract such as a fistula, and the air cavities within the cranial bones, especially those located near the nose and connecting to it. These nose-associated sinuses are called paranasal sinuses and are usually what is meant when a person's "sinuses" are referred to. See Also Sinus is a Latin name for the trigonometric function sine, a concept of mathematics. (See trigonometry.).
Sick sinus syndrome - Sick sinus syndrome Sick sinus syndrome, also called Bradycardia-tachycardia syndrome is a group of abnormal heartbeats (arrhythmias) presumably caused by a malfunction of the sinus node, the heart's "natural" pacemaker. Table of contents showTocToggle("show","hide") 1 Causes 2 Symptoms 3 External Link Causes Sick sinus syndrome is a relatively uncommon syndrome. It can result in many abnormal heart rhthyms (arrhythmias), including sinus arrest, sinus node exit block, sinus bradycardia, and other other types of bradycardia (slow heart rate). Sick sinus syndrome may also be associated with tachycardias (fast heart rate) such as PSVT and atrial fibrillation. Tachycardias that occur with sick sinus syndrome are characterized by a long pause after the tachycardia. Abnormal rhythms are often caused or worsened by medications such as digitalis, calcium channel blockers, beta-blockers,.
Renal sinus - Renal sinus The renal sinus is a cavity within the kidney which is occupied by the renal pelvis, renal calices, blood vessels, nerves and fat..
Paranasal sinus - Paranasal sinus The paranasal sinuses are eight (four pairs) air-filled spaces, or sinuses, within the bones of the skull and face. These are divided into subgroups that are named according to which bones they lie under; the maxilliary sinuses, also called the antra, are under the eyes, in the upper jawbone. the frontal sinuses, over the eyes, in the bone of the forehead. the ethmoid sinuses, between the nose and the eyes, backwards into the skull. the sphenoid sinuses, in the centre of the skull base. The function of the sinuses is not entirely clear, but they may fulfill any or all of the following: Decreasing the relative weight of the front of the skull Helping to warm and humidify inhaled air before it reaches the lungs.
List of human anatomical features - fasciae around the ankle The muscles and fasciae of the foot Angiology The blood Development of the vascular system The thoracic cavity The pericardium The heart Peculiarities in the vascular system in the fetus The Arteries The aorta The arteries of the head and neck The common carotid artery Relations The external carotid artery The triangles of the neck The internal carotid artery The arteries of the brain The arteries of the upper extremity The subclavian artery The axilla The axillary artery The brachial artery The radial artery The ulnar artery The arteries of the trunk The descending aorta The thoracic aorta The abdominal aorta The common iliac arteries The hypogastric artery The external iliac artery The arteries of the lower extremity The femoral artery The popliteal fossa The popliteal artery.
Kidney - about 11 cm long and about 5 cm thick, weighing 150 grams. The kidneys are 'bean-shaped' organs, and have a concave side facing inwards (medially). On this medial aspect of each kidney is an opening, called the hilus, which admits the renal artery, the renal vein, nerves, and the ureter. A kidney is divided into a renal cortex, medulla and pelvis. The basic functional unit of the kidney is the nephron, of which there are more than a million in each normal adult kidney. Nephrons regulate water and soluble substances (especially ions) in the body by filtering it all out first, reabsorbing what should be kept and excreting the rest. They use countercurrent exchange mechanisms. A nephron consists of a Bowman's capsule, a proximal convoluted tubule, a loop of Henle and.
Knidos - of the country of Caria. It is situated at the extremity of the long peninsula that forms the southern side of the Sinus Ceramicus or Gulf of Kos. It was built partly on the mainland and partly on the Island of Triopion or Cape Krio, which anciently communicated with the continent by a causeway and bridge, and now by a narrow sandy isthmus. By means of the causeway the channel between island and mainland was formed into two harbours, of which the larger, or southern, was further enclosed by two strongly-built moles that are still in good part entire. The extreme length of the city was little less than a mile, and the whole intramural area is still thickly strewn. with architectural remains. The walls, both insular and continental, can be.
Jet lag - climate or seasonal conditions, as well as the low humidity commonly experienced in the cabin of an aircraft. Characteristic symptoms of jet lag include: Fatigue Disorientation and/or grogginess Nausea and/or upset stomach Headaches and/or sinus irritation Insomnia and/or highly irregular sleeping patterns Dehydration and loss of appetite Irritability Irrationality The condition is not linked to the length of flight, but to the east-west distance travelled. Hence a ten hour flight between Oslo and Johannesburg will probably be less inducive of jet lag than a four hour flight between New York and Los Angeles. There is no firm agreement as to which direction of travel is worse. Some believe that travelling east is worse as it "accelerates" the passage through various time zones (a night might only last 3 hours when flying.
Jimmie Foxx - players. In 1936, Mack sold Foxx to the Boston Red Sox for $150,000 following a contract dispute. Foxx played six years in Boston, including a spectacular 1938 season in which he hit 50 home runs, drove in 175 runs, batted .349, won his third MVP award, and narrowly missed winning the Triple Crown. In 1939 he hit .360, his 2nd all-time best annual batting average. Foxx's skills diminished significantly after 1941. Some sources attribute this to a drinking problem, while others attribute it to a sinus condition. He split the 1942 season between the Red Sox and Chicago Cubs, playing mostly a reserve role. He sat out the 1943 season and appeared only in 15 games in 1944, mostly as a pinch hitter. He wound up his career with the Philadelphia.
Jonathan Aitken - as MP for Thanet East in the 1974 General Election. He managed to offend Margaret Thatcher by ending a relationship with her daughter, Carol Thatcher, and suggesting that Thatcher "probably thinks Sinai is the plural of Sinus" to an Egyptian newspaper. He stayed on the backbenches throughout Thatcher's reign, eventually becoming Minister of State for Defence Procurement under John Major in 1992. He became Chief Secretary to the Treasury in 1994, a Cabinet position, but resigned in 1995, to defend himself against accusations that whilst Minister of Defence Procurement he violated ministerial rules by allowing an Arab businessman to pay for his stay in the Ritz hotel in Paris. His libel action against the Guardian newspaper and Granada Television collapsed in June 1997 (a month after he had lost his seat.
Intersexual - chromosome causes the fetus to develop testes; the absence of a Y chromosome leads to development of ovaries. Thereafter, the development of the internal reproductive organs and the external genitalia is determined by hormones produced by fetal gonads (ovaries or testes) and the cells' response to them. The initial appearance of the fetal genitalia (a few weeks after conception) is very feminine -- a pair of "urogenital folds" with a small protuberance in the middle, and the urethra behind the protuberance. If the fetus has testes, and if the testes produce testosterone, and if the cells of the genitals respond to the testosterone, the outer urogenital folds swell and fuse in the midline to produce the scrotum; the protuberance grows larger and straighter to form the penis; the inner urogenital swellings.
Influenza - to have killed more people in total than World War I. Most people who get influenza will recover in one to two weeks, but some people will develop life-threatening complications (such as pneumonia) as a result of the flu. Millions of people in the United States — about 10% to 20% of U.S. residents — will get influenza each year. An average of about 36,000 people per year in the United States die from influenza, and 114,000 per year have to be admitted to the hospital as a result of influenza. Anyone can get the flu (even healthy people), and serious problems from influenza can happen at any age. People age 65 years and older, people of any age with chronic medical conditions, and very young children are more likely to.
Inferior nasal conchae - pointed and is situated at the junction of the anterior fourth with the posterior three-fourths of the bone: it articulates, by its apex, with the descending process of the lacrimal bone, and, by its margins, with the groove on the back of the frontal process of the maxilla, and thus assists in forming the canal for the nasolacrimal duct. Behind this process a broad, thin plate, the ethmoidal process, ascends to join the uncinate process of the ethmoid; from its lower border a thin lamina, the maxillary process, curves downward and lateralward; it articulates with the maxilla and forms a part of the medial wall of the maxillary sinus. The inferior border is free, thick, and cellular in structure, more especially in the middle of the bone. Both extremities are more.
Headache - pain may also be interpreted as a headache. Headaches have a wide variety of causes, ranging from eyestrain to inflammation of the sinus cavities to life-threatening conditions such as encephalitis. When the headache occurs in conjunction with a head injury the cause is usually quite evident; however, many causes of headaches are more elusive. The most common type of headache is a tension headache. See Also: Tension headache Migraine Cluster headache Rebound headaches.
Vulcan (Star Trek) - individual. Vulcans can perform a mind-meld with members of most other races, most notably humans; one well-known example of a race impervious to the mind-meld are the Ferengi. Many Vulcans are skilled in a self-defense move known as the Vulcan nerve pinch or neck pinch, which targets a precise location overlying the baroreceptors of the carotid sinus at the base of the humanoid neck, instantly rendering the victim unconscious. While practiced mainly by Vulcans, it is not exclusive to their race; for example, Data and Jean-Luc Picard have also mastered the technique, the latter probably acquiring it during his mind-meld with Sarek. In addition, Vulcans tend to be stronger and longer-lived than humans. The former of these qualities is often attributed to Vulcan's gravity being significantly greater than Earth's. History The.
History of anatomy in the 17th and 18th centuries - made, nevertheless, some just observations on the anatomical disposition of the cerebral vessels, the glandular structure of the liver, and the termination of the common duct in the duodenum. The appearance of Frederic Ruysch, (1638-1731) professor of anatomy at Amsterdam from 1665, gave a new impulse to anatomical research, and tended not only to give the science greater precision, but to extend its limits in every direction. The talents of Ruysch are said to have been developed by accident. To repel the audacious and calumnious aspersions with which Louis de Bils attacked de le Boe and van Horne, Ruysch published his tract on the valves of the lymphatics, which completely established his character as an anatomist of originality and research. This is the smallest of his services to the science. The.
Grayanotoxin - Empirically the toxin is C22H36O7 Gross physical symptoms occur after a dose-dependent latent period of minutes to three hours or so. Initial symptoms are excessive salivation, perspiration, vomiting, dizziness, weakness and paresthesia in the extremities and around the mouth, low blood pressure and sinus bradycardia. In higher doses symptoms can include loss of cordination, severe and progressive muscular weakness, bradyarrhythima but also sometimes ventricular tachycardia, also nodal rhythm or Wolff-Parkinson-White syndrome. Despite the potential cardiac problems the condition is rarely fatal and generally lasts less than a day, medical intervention is not often needed but sometimes atropine therapy, vasopressors and other agents are used to mitigate symptoms. Honey from Turkey, Japan, Brazil, United States, Nepal, and British Columbia is most likely to be contaminated with grayanotoxins, although very rarely to toxic.
