A diaphragm is some sort of separating membrane. This gives rise to several meanings: diaphragm (acoustics), a thin, semi-rigid membrane attached to the central magnet that produces sound in a loudspeaker diaphragm (anatomy), a shelf of muscle extending across the bottom of the ribcage of mammals diaphragm (contraceptive), a small rubber dome placed in the vagina to wall off the cervix, thus preventing sperm from entering diaphragm (mechanics), a sheet of a semi-flexible material anchored at its

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Read more here: » Urogenital diaphragm: Encyclopedia - Urogenital diaphragm

Diaphragm: Wide muscular partition separating the thoracic, or chest cavity, from the abdominal cavity (just below ribs). Contraction and expansion of the diaphragm are significant in breathing and in stimulating digestion.

(See also: Diaphragm, Alternative Health, Body Mind and Soul)

Chlorine (from the Greek language Chloros, meaning "pale green"), is the chemical element with atomic number 17 and symbol Cl. It is a halogen, found in the periodic table in group 17. As the chloride ion, which is part of common salt and other compounds, it is abundant in nature and necessary to most forms of life, including the human body. As chlorine gas, it is greenish yellow, is two and one half times as heavy as air, has an intensely disagreeable suffocating odor, and is exceedingly poisonous. In its liquid and sol ...

Including:

• Chlorine - Notable characteristics
• Chlorine - Applications
• Chlorine - History
• Chlorine - Occurrence
• Chlorine - Isotopes
• Chlorine - Precautions
• Chlorine - The chemical processes for extraction of chlorine gas
• Chlorine - Mercury cell electrolysis
• Chlorine - Diaphragm cell electrolysis
• Chlorine - Membrane cell electrolysis
• Chlorine - Other methods
• Chlorine - Compounds

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In optics, an aperture is something which restricts the diameter of the light path through one plane in an optical system. This may be the edge of a lens or mirror, or a ring or other fixture that holds an optical element in place, or it may be a special element placed in the optical path deliberately to limit the light admitted by the system. The aperture stop or simply the stop is the limiting aperture of the system—the aperture which restricts the diameter of the cone or cylinder of light that can enter and pass thr ...

Including:

• Aperture - Application
• Aperture - In photography
• Aperture - Maximum and minimum apertures

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Confocal laser scanning microscopy (CLSM or LSCM) is a valuable tool for obtaining high resolution images and 3-D reconstructions. The key feature of confocal microscopy is its ability to produce blur-free images of thick specimens at various depths. Images are taken point-by-point and reconstructed with a computer, rather than projected through an eyepiece. The principle for this special kind of microscopy was developed by Marvin Minsky in 1953, but it took another thirty years and the development of lasers as near-ideal point light ...

Including:

• Confocal laser scanning microscopy - Image formation
• Confocal laser scanning microscopy - Resolution enhancement by the confocal principle

Read more here: » Confocal laser scanning microscopy: Encyclopedia - Confocal laser scanning microscopy

André-Louis Danjon (April 6, 1890 – April 21, 1967) was a French astronomer born in Caen, France. Danjon devised a method to measure "Earthshine" on the Moon using a telescope in which a prism split the Moon's image into two identical side-by-side images. By adjusting a diaphragm to dim one of the images until the sunlit portion had the same apparent brightness as the earthlit portion on the unadjusted image, he could quantify the diaphragm adjustment, and thus had a real measurement for the brightness of Earthshine. He reco ...

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The largest artery in the human body, the aorta originates from the left ventricle of the heart and brings oxygenated blood to all parts of the body in the systemic circulation. Aorta - The course of the aorta. The aorta is usually divided into several segments. The portion above the diaphragm (in the thorax) is called the thoracic aorta and is sometimes further subdivided into the ascending aorta, aortic arch and descending (thoracic) aorta. The portion below the diaphragm (in t ...

Including:

• Aorta - The course of the aorta
• Aorta - Thoracic aorta
• Aorta - Abdominal aorta
• Aorta - Features
• Aorta - Diseases

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Klaxon is a trademark for an electromechanical horn or alerting device. The Klaxon's characteristic "AH-OOOOH'-GAH!!" sound is produced by a spring-steel diaphragm with a rivet in the centre which is repeatedly struck by the teeth of a rotating cog-wheel. In the first klaxons the wheel was driven either by hand or by an electric motor. (The electric version has been credited to inventor Miller Reese Hutchison, an associate of Thomas Edison). The diaphragm is attached to a horn which acts as an acoustic transformer as we ...

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The solar plexus, also known as the celiac plexus, plexus cœliacus or plexus solaris, is an autonomous cluster of nerve cells (see Plexus) in the human body behind the stomach and below the diaphragm near the celiac artery in the abdominal cavity. The solar plexus consists of two ganglia, called celiac ganglia, and a nerve network connecting the two ganglia. The solar plexus controls functions of the internal organs as for example adren ...

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Breathe. For information of the respiratory system, see lung, diaphragm, trachea, gas exchange. For the band, see Breathe (band). For the Midnight Oil album, see Breathe. For the Faith Hill album, see Breathe. For the Keller Williams with String Cheese Incident Album, see Breathe . "Breathe" is a Pink Floyd song, from the album Dark Side of the Moon "Breathe" is a song by French musical group Télépopmusik off th

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The term condenser has the following meanings: In electronics, it is a less-commonly used word for capacitor; more often found in non-electronic context, such as the automotive ignition system. A condenser microphone uses a capacitive diaphragm element to convert sound to electrical signals. In electrical engineering, a synchronous condenser is a rotating machine similar to a motor, used to control reactive power flow on an electric power transmission system. In chemistry, a condenser is the app

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In the anatomy of the male human body, the bulbourethral glands (or Cowper's glands) are two small, rounded, and somewhat lobulated bodies, of a yellow color, about the size of peas, placed behind and lateral to the membranous portion of the urethra, between the two layers of the fascia of the urogenital diaphragm. They lie close above the bulb, and are enclosed by the transverse fibers of the Sphincter urethrae membranaceae. Their existence is said to be ...

Including:

• Bulbourethral gland - Structure

Read more here: » Bulbourethral gland: Encyclopedia - Bulbourethral gland

Singing is the act of producing musical sounds with the voice, often constrasted with speech. Air is expelled with the diaphragm as with ordinary breathing, and the pitch is altered with the vocal cords. With the lips closed, this is called humming. A piece of music that is sung is called a song; someone who sings is called a singer. Most singing involves shaping the voice to form words, but types of voice instrumental music which use open sounds or nonsense syllables ("vocables") also exist, for instance scat singing or yodeling. Solfege as ...

Including:

• Singing - External link

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Buccal pumping is a method of respiration using the throat muscles. Animals using this method will typically move the floor of the mouth or throat in a rhythmic manner that is externally apparent. This method has several stages. These will be described for an animal starting with lungs in a deflated state: First, the glottis (opening to the lungs) is closed, and the nostrils are opened. The floor of the mouth is then depressed (lowered), drawing air in. The nostrils are then closed, the glottis opened, and the floor of mouth raised, forcing the air into the ...

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The velar ejective is a type of consonantal sound, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is kʼ, and the equivalent X-SAMPA symbol is k_>. Velar ejective - Features. Features of the velar ejective: Its manner of articulation is plosive or stop, which means it is produced by obstructing airflow in the vocal tract. Its place of articulation is velar which means it is articulated with the back part of the ton ...

Including:

• Velar ejective - Features

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Diaphragms can lead to an increased risk of cystitis [1] and the rare Toxic Shock Syndrome [2] . Although the reasons for this are not fully understood, this may be caused by pressure from the rim of the diaphragm pushing on the neck of the bladder, or by the diaphragm trapping bacteria and secretions in the vagina. Diaphragms made of latex must not be used with oil-based lubricants, as they may cause the latex to weaken and crack. Water-based lubricants are safe for use with latex, and are available in most pharmacies. Diaphragms can i ...

See also:

Diaphragm contraceptive, Diaphragm contraceptive - Use, Diaphragm contraceptive - History, Diaphragm contraceptive - Comparisons, Diaphragm contraceptive - Availability, Diaphragm contraceptive - Risks

Read more here: » Diaphragm contraceptive: Encyclopedia II - Diaphragm contraceptive - Risks

Diaphragms are different from cervical caps, which are smaller, thimble-shaped and placed directly over the cervix. Some women with especially long (or rather, deep) vaginas may find it difficult to position cervical caps properly, as their cervixes may be too far back to reach easily. In these cases, using a diaphragm may be more comfortable. The latest variation on diaphragms and cervical caps is Lea's shield, a one-size-fits-all device which stays in place because of suction at ...

See also:

Diaphragm contraceptive, Diaphragm contraceptive - Use, Diaphragm contraceptive - History, Diaphragm contraceptive - Comparisons, Diaphragm contraceptive - Availability, Diaphragm contraceptive - Risks

Read more here: » Diaphragm contraceptive: Encyclopedia II - Diaphragm contraceptive - Comparisons

Nonoxynol-9 - Spermicide. As a spermicide, it attacks the acrosomal membranes of the sperm causing the sperm to be immobilized. Nonoxynol-9 is the active ingredient in most spermicidal creams, jellies, foams, gel, film, and suppositories. Nonoxynol-9 - Condoms. Many models of condoms are lubricated with solutions containing nonoxynol-9. Nonoxynol-9 - Diaphragms. Almost all brands of diaphragm jelly contain n ...

See also:

Nonoxynol-9, Nonoxynol-9 - Uses, Nonoxynol-9 - Spermicide, Nonoxynol-9 - Condoms, Nonoxynol-9 - Diaphragms, Nonoxynol-9 - Side effects, Nonoxynol-9 - Alternatives

Read more here: » Nonoxynol-9: Encyclopedia II - Nonoxynol-9 - Uses

Laboratory tests have suggested that Nonoxynol-9 may increase a person's risk of contracting sexually transmitted diseases STD, including HIV, if used frequently. This is because the chemical causes tiny abrasions inside the sensitive vaginal and anal walls. These abrasions may make transmission more likely especially if condoms are not used. Nonoxynol-9 based products (including condoms containing the spermicide) should not be used for prevention of HIV or STDs or for contraception between non-monogamous partners because of the incre ...

See also:

Nonoxynol-9, Nonoxynol-9 - Uses, Nonoxynol-9 - Spermicide, Nonoxynol-9 - Condoms, Nonoxynol-9 - Diaphragms, Nonoxynol-9 - Side effects, Nonoxynol-9 - Alternatives

Read more here: » Nonoxynol-9: Encyclopedia II - Nonoxynol-9 - Side effects