appendages
(noun)
The parts of the body that extend from the axial trunk.
Examples of appendages in the following topics:
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Orbits
- The orbit is the cavity or socket of the skull in which the eye and its appendages are situated.
- The orbit, or eye socket, is the cavity located in the skull in which the eye and its associated appendages are housed.
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Adherence
- Adhesins are cell-surface components or appendages of bacteria that facilitate bacterial adhesion to other cells or to inanimate surfaces.
- Adhesins are cell-surface components or appendages of bacteria that facilitate bacterial adhesion or adherence to other cells or to inanimate surfaces.
- In bacteriology, a fimbria (plural fimbriae; abbreviated FIM) is an appendage composed of curlin proteins that can be found on many Gram-negative and some Gram-positive bacteria that is thinner and shorter than a flagellum.
- This appendage ranges from 3-10 nanometers in diameter and can be up to several micrometers long.
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Directional Terms
- These are mostly used with animal anatomy, but can be used in human anatomy as long as they are describing the side of an appendage.
- For example, bones in an appendage are located deeper than the muscles.
- When describing appendages, the proximal end of the appendage connects the appendage to the body, while the distal end is away from the body.
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Overview of the Appendicular Skeleton
- The unfused appendicular skeleton is composed of the appendages (legs and arms) and their supporting girdles, totaling 126 bones.
- The word "appendicular" comes from "appendage," which means "a part that is joined to something larger. " The appendicular skeleton comprises the limbs and their supporting girdles (pectoral and pelvic).
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Anatomical Position
- All descriptions refer to the organism in its standard anatomical position, even when the organism's appendages are in another position.
- The positions of the limbs, particularly the arms, have important implications for directional terms in those appendages.
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Subphyla of Arthropoda
- Crustaceans possess two pairs of antennae, mandibles as mouthparts, and biramous ("two branched") appendages: their legs are formed in two parts, as distinct from the uniramous ("one branched") myriapods and hexapods.
- The phylum derives its name from the first pair of appendages, the chelicerae, which are specialized claw-like or fang-like mouthparts.
- The second pair of appendages is known as pedipalps.
- In some species, such as sea spiders, an additional pair of appendages, called ovigers, is present between the chelicerae and pedipalps.
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Morphologically Unusual Proteobacteria
- Prosthecate bacteria are a non-phylogenetically related group of Gram-negative bacteria that possess appendages, termed prosthecae.
- These cellular appendages are neither pili nor flagella, as they are extensions of the cellular membrane and contain cytosol.
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Agnathans: Jawless Fishes
- A defining feature of agnathans is the lack of paired lateral appendages or fins.
- Lampreys are morphologically similar to hagfishes and also lack paired appendages.
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Regional Terms and Axes
- This includes the limbs and appendages.
- Any pair of corresponding directional terms can be combined to form an axis (such as proximal-distal for an appendage).
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The Appendicular Skeleton
- The appendicular skeleton of vertebrates, including humans, consists of the bones that support and compose the appendages (for example, the arms and legs of humans).
- The word appendicular is the adjective of the noun appendage.