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root

 [roōt]
1. the descending and subterranean part of a plant.
2. that portion of an organ, such as a tooth, hair, or nail, that is buried in the tissues, or by which it arises from another structure, or the part of a nerve that is adjacent to the center to which it is connected.
Tooth anomalies with variations in root form. From Darby and Walsh, 1994.
anterior root the anterior, or motor, division of each spinal nerve, attached centrally to the spinal cord and joining peripherally with the posterior root to form the nerve before it emerges from the intervertebral foramen; it conveys motor fibers to skeletal muscle and contains preganglionic autonomic fibers at the thoracolumbar and sacral levels. Called also ventral root.
dorsal root posterior root.
motor root anterior root.
nerve r's the series of paired bundles of nerve fibers which emerge at each side of the spinal cord, termed dorsal (or posterior) or ventral (or anterior) according to their position. There are 31 pairs (8 cervical, 12 thoracic, 5 lumbar, 5 sacral, and 1 coccygeal), each corresponding dorsal and ventral root joining to form a spinal nerve. Certain cranial nerves, e.g., the trigeminal, also have nerve roots.
posterior root the posterior, or sensory, division of each spinal nerve, attached centrally to the spinal cord and joining peripherally with the anterior root to form the nerve before it emerges from the intervertebral foramen; each posterior root bears a spinal ganglion that conveys sensory fibers to the spinal cord. Called also dorsal root.
sensory root posterior root.
ventral root anterior root.

root

(rūt), [TA]
1. The primary or beginning portion of any part, as of a nerve at its origin from the brainstem or spinal cord. Synonym(s): radix (1)
2. Synonym(s): root of tooth
3. The descending underground portion of a plant; it absorbs water and nutrients, provides support, and stores nutrients.
4. Loosely used to denote the etiology of a process, event, or conflict requiring solutions to allow mitigation. For roots of pharmacologic significance that are not listed below, see specific names.
[A.S. rot]

root

(ro͞ot, ro͝ot)
n.
1. The embedded part of an organ or structure such as a hair, tooth, or nerve, that serves as a base or support.
2. A primary source; an origin; radix.

root

Australian slang for:
noun Sexual intercourse.
 
verb To engage in sexual intercourse.

root

(rūt) [TA]
1. The primary or beginning portion of any part, as of a nerve at its origin from the brainstem or spinal cord.
Synonym(s): radix (1) [TA] .
2. Synonym(s): root of tooth.
3. The descending underground portion of a plant; it absorbs water and nutrients, provides support, and stores nutrients.
[A.S. rot]
Fig. 271 Root. Transverse section of a typical dicotyledon (buttercup) root.click for a larger image
Fig. 271 Root. Transverse section of a typical dicotyledon (buttercup) root.

root

that part of a plant which (usually) grows below ground. The root provides anchorage for the aerial parts, absorbs water and mineral salts from the soil, conducts water and nutrients to other parts of the plant, and often stores food materials over winter. Root structure is variable among higher plants, but generally the root, unlike the young STEM, has a central core of conducting tissue (the STELE) which also serves as a strong structural element, assisting the root as it pushes downwards and resisting upward pressures from the aerial parts.

Roots can be classified into three main types: primary, secondary (see LATERAL ROOT), and ADVENTITIOUS (1). The primary root of ANGIOSPERMS develops from the radicle of the seedling. Later, secondary roots emerge from the top of the primary root and then further down. At the apex of the root is a protective ROOT CAP. The typical root structure of a DICOTYLEDON is shown in Fig. 271.

In MONOCOTYLEDONS the number of xylem ‘arms’ is usually much greater than in DICOTYLEDONS, 12 to 20 in monocotyledons, 2 to 5 in dicotyledons. Roots frequently undergo SECONDARY THICKENING in dicotyledons, but not in monocotyledons.

root

(rūt) [TA]
1. Primary or beginning portion of any part, as of a nerve at its origin from the brainstem or spinal cord.
2. Synonym(s): root of tooth.
3. Loosely used to denote the etiology of a process, event, or conflict requiring solutions to allow mitigation.
[A.S. rot]

Patient discussion about root

Q. How much does a root canal hurt? I have to get a root canal for my bottom tooth. I was wondering how much they hurt. And do you have any suggestions that help distract from the pain? Thanks.

A. i did one about two years ago- even the injection wasn't too bad! didn't feel a thing. but after the anesthesia worn off it hurt. but then the dentist told me to take Advil or any other NSAID and it helped.

More discussions about root
References in periodicals archive ?
Table-1 also shows frequency of the apical foramen in the mesial and distal roots of mandibular first molars.
Root, founded in 2015, uses telematics and smartphone-related technology to reward good drivers with cheaper insurance rates.
h) When analyzing the words derived from nonlinear roots and templates (3-5, 15-17), it is clear that some of these carry the same meaning as stem and suffixed words.
"Some of the indicators of root problems can be detected by homeowners, while others can only be diagnosed by a professional arborist using specialized examination methods," points out Andersen.
Loss of cementum and dentine which are inevitable processes due to root resorption occur either physiologically or due to some pathological routes.
This research was conducted to determine the effects of treatments with IBA (0, 2, 4 and 6 g l-1) and some plant growth promoting rhizobacteria (PGPR) (Burkholderia gladii-BA7,Bacillus subtilus-OSU142 and Bacillus megatorium-M3) strains alone and combination with each bacterial strains on rooting and root growth in black and white mulberry hardwood cuttings.
Furthermore, correlating the treatment outcome with the technical quality of root fillings and the preoperative periapical status (Table 5), roots with unacceptable canal fillings and periapical lesions showed the lowest success rate (40.3%) among the other sub-groups (69.9%-94.5%, p<0.05).
It was no more me and my roots, but me, my roots, and relation of my roots to so much.
Just before planting, I inspect the roots, cutting off any that are dead, diseased or broken.
Reportedly, maxillary premolars are the most complex teeth for performing endodontic treatment,[1] with root canals varying based on race, genetic predisposition, diet, region, gender,[2] and perhaps age.
Primary roots per cutting: Number of roots developed per cutting was significantly affected by the rooting media, IBA concentrations and their interactions in guava cuttings (Table 1).
(2014) have described a variation of median nerve of a Sri Lankan subject which was formed by two lateral roots. There are several detail studies done on variations of MN with regards to its communications with musculocutaneous nerve (MCN) and has mentioned different classification systems (Venieratos & Anagnostopoulou, 1998; Sachdeva & Singla, 2011; Ramdas et al., 2013).