hair root


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hair root

the part of a hair that is embedded in the hair follicle, its lower succulent extremity capping the dermal papilla pili in the deep bulbous portion of the follicle.
Synonym(s): radix pili

hair root

(hār rūt)
The part of a hair that is embedded in the hair follicle, its lower succulent extremity capping the dermal papilla pili in the deep bulbous portion of the follicle.

root

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, e.g. root of neck, root of tail.

calcified root canal
restriction of the diameter of the root canal due to calicification; seen in older animals.
root canal
that part of the dental pulp cavity extending from the pulp chamber to the apical foramen. Called also pulp canal.
root canal therapy
dental root elevator
screwdriver-shaped instrument with a grooved and beveled blade. By pushing the tip of the blade between the tooth root and the alveolar wall the periodontal membrane is broken and the root is elevated and removed.
dorsal root
the sensory division of each spinal nerve, attached centrally to the spinal cord and joining peripherally with the ventral root to form the nerve before it emerges from the intervertebral foramen.
hair root
the part of the hair buried in the hair follicle.
mesenteric root
the small area of attachment of the mesentery to the dorsal abdominal wall at about the level of the first lumbar vertebrae. It encloses the vessels and nerves that supply the intestine.
motor root
ventral 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. A series of dorsal and ventral roots join to form a spinal nerve. Certain cranial nerves, e.g. the trigeminal, also have nerve roots.
penis root
the attachment of the penis by two crura to the lateral parts of the ischial arch.
root perforation
an accidental occurrence when filing a root canal.
root planing
see dental planing.
sensory root
dorsal root.
root signature
referred pain down a limb, causing lameness or elevation of the limb, resulting from entrapment of the spinal nerve, usually by an extruded intervertebral disk.
root sheath cuticle
single layer of cornified cells of the hair follicle interdigitating with the cornified cells of the hair cuticle.
tongue root
caudal part of the tongue attached to the hyoid bone, soft palate and pharynx.
ventral root
the motor division of each spinal nerve, attached centrally to the spinal cord and joining peripherally with the dorsal root to form the nerve before it emerges from the intervertebral foramen.
References in periodicals archive ?
The myrtle oil is used for itching, hair fall, dandruff, nourishing the hair roots, and the inflammations of urinary tract.
P R E V E N TAT I V E MEASURES Male-pattern baldness relates to a super sensitivity of the hair roots to the hormone dihydrotestosterone (DHT).
The best thing you can do is bleach it or have laser removal, which destroys the hair root.
The DNA is obtained from the skin cells attached to the hair root.
The products use a radio frequency to send voltage down tweezers and through the hair shaft, killing the hair root.
Priorin, which contains extracts of millet that is rich in the necessary nutrients for the hair root, the hair vitamin B5 (pantothenic acid) and L-cystine, a component of the hair protein keratin, has been endorsed by modern scientific studies.
This began in the late 1800s with attempts by physicians to kill the hair root by inserting and twisting a barbed needle dipped in sulphuric acid into the hair follicle.
Finally Free Ultra works in a way similar to electrolysis--it uses a radio frequency to destroy the hair root.
Squeeze excess water from hair and apply enough of the mask treatment to coat hair root to tip.
An expert said tests on victim Elizabeth McCabe's clothing and a hair root found on a mortuary sheet linked her to alleged killer Vincent Simpson.
Alopecia happens when the immune system attacks the hair root, putting it into a resting, rather than a growth, phase.