Fetus

In human development, a fetus (/ˈfiːtəs/; plural "fetuses"), also spelled foetus, is a prenatal human between its embryonic state and its birth. The fetal stage of development tends to be taken as beginning at the gestational age of eleven weeks, i.e. nine weeks after fertilization. In biological terms, however, prenatal development is a continuum, with no clear defining feature distinguishing an embryo from a fetus. The use of the term "fetus" generally implies that an embryo has developed to the point of being recognizable as a human; this is the point usually taken to be the ninth week after fertilization. A fetus is also characterized by the presence of all the major body organs, though they will not yet be fully developed and functional and some not yet situated in their final anatomical location.

Etymology

The word fetus (plural fetuses) is from the Latin fētus (“offspring”, “bringing forth”, “hatching of young”). The British, Irish, and Commonwealth spelling is foetus, which has been in use since at least 1594. It arose as a hypercorrection based on an incorrect etymology (i.e. due to insufficient knowledge of Latin) that may have originated with an error by Isidore of Seville in AD 620. This spelling is the most common in most Commonwealth nations, except in the medical literature, where fetus is used. The etymologically accurate original spelling fetus is used in Canada and the United States. In addition, fetus is now the standard English spelling throughout the world in medical journals. The spelling faetus was used historically.

Foetus (band)

Foetus is the primary musical outlet of J. G. Thirlwell. Until 1995 the band underwent various name changes, all including the word foetus. Monikers adopted at different times include Foetus Under Glass, You've Got Foetus on Your Breath and Scraping Foetus Off The Wheel. After 1995 the name permanently became Foetus, though the related project The Foetus Symphony Orchestra was founded in 1997 and continues.

Thirlwell acts as the sole instrumentalist, vocalist, songwriter and producer for all Foetus works and as such is the only member of the band. Other artists may occasionally collaborate with Thirlwell on Foetus works but are not considered members of Foetus. Thirlwell is solely responsible for the musical output of the band.

J. G. Thirlwell has many side-projects, in which he frequently goes by the name Clint Ruin. One such grouping is Wiseblood with former Swans member Roli Mosimann. The material tends toward the realm of the darkest and most sexual Foetus songs, with Mosimann's Swans lineage showing in the slow, crushing pacing of many tracks. Thematically, Wiseblood's lyrics center around the misanthropic exertion of power, typically via murder, sex or assault. Wiseblood existed on-and-off from the mid-1980s through early 1990s.

Foetus (film)

Foetus (Hungarian: A magzat) is a 1994 Hungarian drama film directed by Márta Mészáros. It was entered into the 44th Berlin International Film Festival.

Cast

References

External links

Vein

In the circulatory system, veins (from the Latin vena) are blood vessels that carry blood toward the heart. Most veins carry deoxygenated blood from the tissues back to the heart; exceptions are the pulmonary and umbilical veins, both of which carry oxygenated blood to the heart. In contrast to veins, arteries carry blood away from the heart. Veins are less muscular than arteries and are often closer to the skin. There are valves in most veins to prevent backflow.

Structure

In general, veins function to return deoxygenated blood to the heart, and are essentially tubes that collapse when their lumens are not filled with blood. The thick outermost layer of a vein is made of connective tissue, called tunica adventitia or tunica externa. There is a middle layer bands of smooth muscle called tunica media, which are, in general, much thinner than those of arteries, as veins do not function primarily in a contractile manner and are not subject to the high pressures of systole, as arteries are. The interior is lined with endothelial cells called tunica intima. The precise location of veins varies much more from person to person than that of arteries. Veins often display a lot of anatomical variation compared with arteries within a species and between species.

Vein (geology)

In geology, a vein is a distinct sheetlike body of crystallized minerals within a rock. Veins form when mineral constituents carried by an aqueous solution within the rock mass are deposited through precipitation. The hydraulic flow involved is usually due to hydrothermal circulation.

Veins are classically thought of as being the result of growth of crystals on the walls of planar fractures in rocks, with the crystal growth occurring normal to the walls of the cavity, and the crystal protruding into open space. This certainly is the method for the formation of some veins. However, it is rare in geology for significant open space to remain open in large volumes of rock, especially several kilometers below the surface. Thus, there are two main mechanisms considered likely for the formation of veins: open-space filling and crack-seal growth.

Open space filling

Open space filling is the hallmark of epithermal vein systems, such as a stockwork, in greisens or in certain skarn environments. For open space filling to take effect, the confining pressure is generally considered to be below 0.5 GPa, or less than 3-5 kilometers. Veins formed in this way may exhibit a colloform, agate-like habit, of sequential selvages of minerals which radiate out from nucleation points on the vein walls and appear to fill up the available open space. Often evidence of fluid boiling is present. Vugs, cavities and geodes are all examples of open-space filling phenomena in hydrothermal systems.

Vein (Foetus album)

Damp is a remix album Foetus, released on October 22, 2007 by Ectopic Ents. It contains remixes of songs from the studio album Love, including a b-side from the (not adam) EP.

Track listing

All songs written and composed by J. G. Thirlwell. 

Personnel

Adapted from the Vein liner notes.

Release history

References

External links