What's the difference between hair and lanugo?

Hair


Definition:

  • (n.) The collection or mass of filaments growing from the skin of an animal, and forming a covering for a part of the head or for any part or the whole of the body.
  • (n.) One the above-mentioned filaments, consisting, in invertebrate animals, of a long, tubular part which is free and flexible, and a bulbous root imbedded in the skin.
  • (n.) Hair (human or animal) used for various purposes; as, hair for stuffing cushions.
  • (n.) A slender outgrowth from the chitinous cuticle of insects, spiders, crustaceans, and other invertebrates. Such hairs are totally unlike those of vertebrates in structure, composition, and mode of growth.
  • (n.) An outgrowth of the epidermis, consisting of one or of several cells, whether pointed, hooked, knobbed, or stellated. Internal hairs occur in the flower stalk of the yellow frog lily (Nuphar).
  • (n.) A spring device used in a hair-trigger firearm.
  • (n.) A haircloth.
  • (n.) Any very small distance, or degree; a hairbreadth.

Example Sentences:

  • (1) Cook, who has postbox-red hair and a painful-looking piercing in his lower lip, was now on stage in discussion with four fellow YouTubers, all in their early 20s.
  • (2) The surface of all cells was covered by a fuzzy coat consisting of fine hairs or bristles.
  • (3) We have isolated a murine cDNA clone, pCAL-F559, for the calcium-binding protein calcyclin by differential screening of a cDNA library made from RNA isolated from hair follicles of 6-d-old mice.
  • (4) White hair bulbs which demonstrated no TH activity formed 2SCD, but not 5SCD.
  • (5) Isolated outer hair cells from the organ of Corti of the guinea pig have been shown to change length in response to a mechanical stimulus in the form of a tone burst at a fixed frequency of 200 Hz (Canlon et al., 1988).
  • (6) We have reported on a simple and secure method of tying up hair during transplantation surgery for alopecia.
  • (7) Bone age has been analyzed mixed-longitudinally in a subsample of 370 patients (660 observations) and showed a slight retardation at all ages between 6 and 13 yr. Development of pubic hair of 91 subjects analyzed cross-sectionally was definitely retarded when compared to adequate reference data.
  • (8) Tumors were induced in athymic, T-cell-deficient nude mice and in syngeneic normal haired mice by treatment with low doses of 3-methylcholantrene (MCA).
  • (9) As I looked further, I saw that there was blood and hair and what looked like brain tissue intermingled with that to the right area of her skull."
  • (10) A new method of staining the keratin filament matrix allowing a visualization of the filaments in cross section of hair fibres has been developed.
  • (11) However, in subjects with alopecia there was no such difference and the growth rate of all the hairs showed a continuous distribution.
  • (12) No infection threads were found to penetrate either root hairs or the nodule cells.
  • (13) After 7 days, various stages of sensory hair degeneration could be observed.
  • (14) This review of androgenetic alopecia (AA) in women provides a summary of hair physiology and biochemistry, a general discussion of AA, and a brief description of other types of hair loss in women.
  • (15) Subungual hair penetration appears to be much less common.
  • (16) Steep longitudinal and transverse gradients of glycogen are known to exist in the organ of Corti of the guinea pig, with preferential accumulation in the outer hair cells of the apical turns.
  • (17) Of four normal tissues assessed, two (hair follicles and tissues responsible for development of leg contractures) showed no change in radioresponse after treatment with indomethacin, one (hematopoietic tissue) exhibited radioprotection, and one (jejunum) exhibited slight radiosensitization (enhancement factor, 1.12).
  • (18) On the other hand, the total number of missing hair cells, irrespective of location, was a good, general indicator of the hearing capacity in a given ear.
  • (19) The objective was to determine whether the parent axonal impulse train elicited by dual-hair stimulation was due to a temporal combining ("mixing"; Fukami, 1980) of the impulse trains elicited in the parent axons by the same stimulation to each hair alone.
  • (20) In addition to descriptions of variants of the root appearance for hairs removed from follicles in the three classical growth phases, several other commonly occurring root configurations are described and illustrated with photomicrographs.

Lanugo


Definition:

  • (n.) The soft woolly hair which covers most parts of the mammal fetus, and in man is shed before or soon after birth.

Example Sentences:

  • (1) Hypertrichosis lanuginosa acquisita is regarded as an obligatory cutaneous paraneoplasm and is defined as the sudden and excessive appearance of lanugo hairs on the entire integument associated with malignant neoplasm of internal organs.
  • (2) As human scalp hair grew it appeared small like lanugo hair, but the increase in diameter appeared to have been relatively rapid.
  • (3) Photomicrographs show fetal squames and lanugo hairs in the pulmonary capillaries as well as ones aspirated from the right atrium.
  • (4) Based on a comparison of this with seven other patients in the literature, the most characteristic clinical symptoms of partial trisomy 2p are concluded to be the following: abundant lanugo at birth, glabella prominence, anteverted nares, dermatoglyphic anomalies, and malformations of the eyes.
  • (5) Eighteen months later there was no evidence of the cancer, and the lanugo hairs had vanished.
  • (6) Compared with standard reported harbor seal pup measurements, 8 of the nonsurviving pups were premature (ie, creamy-white lanugo coat, early pupping season birthdate, and decreased body size [6 to 10 cm shorter and 2.3 to 4.5 kg less than normal]).
  • (7) Fine lanugo-like hair covered his face, trunk, and extremities, and there were marked pigmentation of oral mucous membrane and a painful red tongue.
  • (8) Human histopathologic studies have demonstrated that amniotic fluid cellular contents, keratinized squamous epithelial cells and lanugo hair, induce an intense inflammatory reaction including granulation tissue in the neonatal temporal bone.
  • (9) Seventy-four patients with smooth skin microsporosis with involvement of the lanugo were treated with a 10% quinosol solution in dimexid.
  • (10) On the serosa we noted an inflammation infiltrate rich in collagen fibers, frequently containing squamous cells (vernix) and lanugo.
  • (11) Histologically, keratinizing squamous cells, bile pigments, lanugo hair, and alcian-blue stained materials and cells were observed in the serosal layer of the tip of the proximal blind segment and mesenterium connecting to this portion.
  • (12) In addition to ablepharon and macrostomia, other anomalies common to all patients include auricular deformity, nasal alar deformity, absence of lanugo hair, dry, ichthyotic skin and ambiguous genitalia.
  • (13) One cyst contained some lanugo hair and a small bud of follicular epithelium.
  • (14) To address this question PAB samples from peripartum patients without clinical AFE were examined for the presence and extent of AFM (including squames, mucin, and lanugo hair).
  • (15) In the presence of trisomy for (3)q21 leads to qter and monosomy for (3)p25 leads to pter, the facial dysmorphy is unique: a distorted head shape due to irregular cranial sutures, thick low eyebrows, long eyelashes, persistent lanugo, distended veins on the scalp, hypertelorism, oblique palpebral fissures, a very short nose with a broad depressed bridge and anteverted nares, protruding maxilla, thin upper lip, micrognathia, low-set ears, and a short webbed neck.
  • (16) A 62-year-old, postmenopausal woman had rapidly appearing lanugo-type hair on her face and extremities.
  • (17) The patient with clinical AFE had many squames, clumps of lanugo hair, and mucin in one sample.
  • (18) This is the first known instance of hypertrichosis lanuginosa associated with a gynecologic cancer and the first ever observed in which the lanugo hairs disappeared after cancer therapy.
  • (19) The ablepharon macrostomia syndrome is a severe congenital condition that includes total absence of the upper and lower eyelids, failure of lip fusion that results in an enlarged, fish-like mouth, abnormally shaped ears and nose, absence of lanugo, ventral hernia, and ambiguous genitalia.
  • (20) The causes, prophylaxis, and correction of postoperative complications are described for the following: lowering the lid margin; thinning of the lid in the area of the tarsal transposition; lymph edema of the transplant; lid margin defects, and dehiscence of the wound; corneal epithelial defects; trichiasis caused by lanugo hair; keratinization of the lid margin; ectropion of the conjunctiva; retraction of the upper lid, and entropion of the upper lid.

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