hair bulb


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Related to hair bulb: hair papilla

bulb

 [bulb]
a rounded mass or enlargement. adj., adj bul´bar.
bulb of aorta the enlargement of the aorta at its point of origin from the heart.
auditory bulb the membranous labyrinth and cochlea.
bulb of eye eyeball.
gustatory b's taste buds.
hair bulb the bulbous expansion at the proximal end of a hair, in which the hair shaft is generated.
inferior bulb of jugular vein a dilatation of the internal jugular vein just before it joins the brachiocephalic vein.
Krause's bulb end-bulb.
olfactory bulb the bulblike expansion of the olfactory tract on the under surface of the frontal lobe of each cerebral hemisphere.
bulb of penis bulb of urethra.
superior bulb of jugular vein a dilatation at the beginning of the internal jugular vein.
taste b's taste buds.
bulb of urethra the enlarged proximal part of the corpus spongiosum.
bulb of vestibule (vestibulovaginal bulb) a body consisting of paired masses of erectile tissue, situated one on either side of the vaginal orifice.

bulb of hair

, hair bulb
hair bulb, the lower expanded extremity of the hair follicle that fits like a cap over the papilla pili.
Synonym(s): bulbus pili

hair bulb

The expanded portion at the lower end of the hair root. The growth of a hair results from the proliferation of cells of the hair bulb.
See also: bulb

bulb

1. a rounded mass or enlargement.
2. medulla oblongata.

aortic bulb
the enlargement of the aorta at its point of origin from the heart.
auditory bulb
the membranous labyrinth and cochlea.
eye bulb
the eyeball.
gustatory b's
taste buds.
hair bulb
the bulbous expansion at the proximal end of a hair, in which the hair shaft is generated.
heel bulb
the swollen part of the hoof wall and adjacent soft tissue at the back of the hoof characterized by a periople which is wider than at any other part of the hoof.
Krause's b's
olfactory bulb
see olfactory bulb.
penile bulb
see penile bulb.
taste b's
taste buds.
urethral bulb
the enlarged proximal part of the corpus spongiosum.
vestibular bulb, vestibulovaginal bulb
a body consisting of paired masses of erectile tissue, situated one on either side of the vaginal orifice.
References in periodicals archive ?
The only effective way to remove it completely is to destroy the hair bulb, connective tissues and stem cells.
A new set of primers that allows amplification of a larger DNA fragment, associated to a hot-start PCR reaction, resulted in an efficient amplification from a single hair bulb added directly to the PCR mix.
Answer: As we age, less melanin is produced in the hair bulb, so gray hair has very little melanin and white hair has none.
Histopathologically hair shafts hair bulbs and sebaceous and sweat glands were observed in the epidermis and dermis of the choristoma.
Melanocytes, melanin granules, hair bulbs, adipose tissue and sebaceous glands were observed in corneal epithelium and propria histopathologically.
Hair bulbs have been suggested as a reservoir for beta-HPVs (15), and this may also be true for MCPyV.
The cells in the skin's dermal layer, where hair bulbs lie buried, sometimes become cancerous.
L'Oreal researchers also studied how African hair forms curls by growing in vitro cultures of isolated hair bulbs.