Rest may refer to:
Rest may also refer to:
REST written as an abbreviation may refer to:
Rest, released April 1, 2008, is the second full-length album by Virginian post-rock band Gregor Samsa. The band posted the tracks online at Imeem before the album was released. The album was released in five formats, digital (April 1), unlimited (May 13), limited (April 24), collector's, and vinyl.
A rest is an interval of silence in a piece of music, marked by a symbol indicating the length of the pause. Each rest symbol corresponds with a particular note value:
The quarter (crotchet) rest may also be found as a form
in older music.
(The four-measure rest or longa rest is a symbol found in Western musical notation denoting a silence four times the duration of a whole rest. They are only used in long silent passages which are not divided into bars.
The two-measure rest or breve rest is another symbol found in Western musical notation denoting a silence twice the duration of a whole rest.
The combination of rests used to mark a pause follows the same rules as for notes. For more details see note value.
When an entire bar is devoid of notes, a whole (semibreve) rest is used, regardless of the actual time signature. The only exceptions are for a 4/2 time signature (four half notes per bar), when a double whole rest is typically used for a bar's rest, and for time signatures shorter than 3/16, when a rest of the actual measure length would be used. For a 4/2 bar rest, it is also common to use the whole rest instead of the double whole rest, so that a whole-bar rest for all time signatures starting from 3/16 is notated using a whole note rest. Some published (usually earlier) music places the numeral "1" above the rest to confirm the extent of the rest.
The spleen (from Greek σπλήν—splḗn) is an organ found in virtually all vertebrates. Similar in structure to a large lymph node, it acts primarily as a blood filter.
The spleen plays important roles in regard to red blood cells (also referred to as erythrocytes) and the immune system. It removes old red blood cells and holds a reserve of blood, which can be valuable in case of hemorrhagic shock, and also recycles iron. As a part of the mononuclear phagocyte system, it metabolizes hemoglobin removed from senescent erythrocytes. The globin portion of hemoglobin is degraded to its constitutive amino acids, and the heme portion is metabolized to bilirubin, which is removed in the liver.
The spleen synthesizes antibodies in its white pulp and removes antibody-coated bacteria and antibody-coated blood cells by way of blood and lymph node circulation. A study published in 2009 using mice found that the spleen contains, in its reserve, half of the body's monocytes within the red pulp. These monocytes, upon moving to injured tissue (such as the heart), turn into dendritic cells and macrophages while promoting tissue healing. The spleen is a center of activity of the mononuclear phagocyte system and can be considered analogous to a large lymph node, as its absence causes a predisposition to certain infections.
The Spleen (Chinese: 脾; pinyin: pí) is one of the zàng organs stipulated by Traditional Chinese Medicine (TCM). It is a functionally defined entity and not equivalent to the anatomical organ of the same name.
As a zàng, the Spleen is considered to be a yin organ. Its associated yang organ is the Stomach. Both Spleen and Stomach are attributed to the Earth element.
Regarding its stipulated functions, the Spleen
The spleen is an organ in the human body.
Spleen may also refer to: