(n.) A hard protuberance; a hard swelling or rising; a bunch; a lump; as, a knob in the flesh, or on a bone.
(n.) A knoblike ornament or handle; as, the knob of a lock, door, or drawer.
(n.) A rounded hill or mountain; as, the Pilot Knob.
(n.) See Knop.
(v. i.) To grow into knobs or bunches; to become knobbed.
Example Sentences:
(1) The narrow intercellular ridge is smooth, whereas the epithelial cells have small cytoplasmic knobs between the cilia.
(2) The histochemical study of the LDH in the Trout embryo during the early organogenesis shows a specific localization in notochord cells, in mesodermic cells of the terminal knob and in some prosencephalic neuroblasts.
(3) Motor axons possessed elongate, irregularly shaped boutons en passant and morphologically variable boutons terminaux; the latter included huge endings with knobbed projectiles arising from thick collaterals, or smaller, round boutons from thin collaterals.
(4) Men might not have frills and furbelows as women traditionally do, but they’ve got spurious function: knobs on their watches or extra pockets on their jackets that are just as decorative as anything women wear.” 6.
(5) As with established cell lines, formation of zeiotic knobs at the isolated Type 1 cell surface appeared closely related to microfilamentous nets located beneath the plasmalemma.
(6) The isolated cells have an ovoid soma, a dendrite of variable length which terminates in a cilia-bearing knob and an axon, also of variable length.
(7) In addition, some reacted with either knob protrusions or caveolae of the host erythrocyte membrane; one reacted with a parasite-derived antigen present in the erythrocyte cytoplasm.
(8) "It might be that you think it's just a knob on the front panel, but maybe installing it requires you disassemble the front panel, and actually you need a mechanic to come and fit it," argues Rowley.
(9) wt from 80 to 95 kd in different knob-producing isolates of P. falciparum and is absent in knobless variants.
(10) To investigate environmental influences on the development of the olfactory epithelium, semi-thin sections were taken from the nasal septum of newborn and 30-day-old rabbits; the epithelial thickness and the number of olfactory knobs, supporting cells, dark basal cells, and receptor cells were compared.
(11) The spores of Rif-18 are pleomorphic and frequently exhibit terminal knobs.
(12) To investigate the involvement of actin filaments in concanavalin A (Con A)-induced cap formation and cytochalasin B (CB)-induced zeiotic knob migration, the distribution of F-actin was studied in Con A-treated and CB-treated Ehrlich ascites tumor cells (EATC) by fluorescence microscopy using heavy meromyosin conjugated with a fluorescent dye, N-(7-dimethylamino-4-methylcoumarinyl) maleimide, (DACM-HMM).
(13) 205 subjects each chose a "most pleasant" sound delivered through an earphone by turning the control knob on a continuously variable audio oscillator.
(14) Knobs which appear on the membrane of the infected erythrocytes adhere to the endothelium, causing the obstruction of cerebral microvessels.
(15) Cytoadherence of infected erythrocytes in vivo is associated with the presence of knobs on the erythrocyte surface, but we and others have shown recently that cytoadherence to C32 melanoma cells may occur in vitro in the absence of knobs.
(16) Systemic administration of the anti-inflammatory agent indomethacin blocked vascular leakage due to endothelial gap formation but had little or no effect on trophoblast knob penetration of vessels.
(17) After crossectomy which remains the most important stage, a short stripping is performed in an upward direction, substituting a packing for the olive shaped knob normally used.
(18) Under scanning electron microscopy, O. viverrini eggs looked like musk-melon skin; they had prominent shoulders and long knobs.
(19) Six culture-adapted knob-positive Plasmodium falciparum parasites, four of which were nonbinding in an in vitro cytoadherence assay, were tested for the presence of the knob-associated histidine-rich protein PfHRP1.
(20) Instead, there were free and spiral nerve terminals in the interstitium, and epilemmal knob-like or bouton-like endings surrounding non-encapsulated muscle fibers.
Protuberance
Definition:
(n.) That which is protuberant swelled or pushed beyond the surrounding or adjacent surface; a swelling or tumor on the body; a prominence; a bunch or knob; an elevation.
Example Sentences:
(1) The protuberances arose after an exposure of early-exponential phase cells to digestive enzymes from hepatopancreas of Helix pomatia.
(2) The patient's main phenotypic features were short-limb dwarfism, craniofacial disproportion with prominent forehead, short neck and trunk with pectus carinatum, and platyspondyly, protuberant abdomen, acromesomelic shortness of limbs, bilateral palm simian crease, short feet with brachydactyly of the 2nd toe, and prominent heels.
(3) The active zones were distinguishable as regions with an increased density of large particles and vesicle attachment sites represented by P face depressions and E face protuberances.
(4) Rotary-replication of quick-frozen, etched postsynaptic membranes enhanced the visibility of these surface protuberances and illustrated that they often occur in dimers, tetramers, and ordered rows.
(5) Comparison of this patient with thirteen previously published cases of this trisomy reveals a pattern of common features including: peculiar craniofacial dysmorphism--facial asymmetry, antimongoloid slant, narrow or short palpebral fissures, prominent nose, long upper lip, micro or retrognathia, high arched palate, low set ears, malformed ears, protuberant occiput--, abnormal fingers and toes, short neck, mental and growth retardation, cardiopathy, respiratory distress etc..
(6) A 51-year-old Caucasian man presented with a yellowish lesion containing multiple protuberances over his right cheek.
(7) Other features which conform to previous reports are a peculiar face with a long philtrum, protuberant lower lip, relative micrognathia, large dysplastic ears, excessive loose skin folds around the scalp, neck and trunk, large hands with camptodactyly, varus deformities of the feet and a hoarse, low-pitched voice.
(8) Characteristic protuberant structures were observed on cells of all cellulolytic strains.
(9) In osteo-onychodysostosis, characteristic osseous horns arise from the posterior iliac wings, whereas in Type IX Ehlers-Danlos syndrome, similar protuberances extend inferiorly from the occiput.
(10) The indentations and protuberances of the cranial bones in the region of the middle cranial fossa were regarded as reflecting prominent indentations of the gyri and were attributed no pathological significance.
(11) Some ciliated cells were also seen to exhibit protuberant mucus protrusion.
(12) An artifactual protuberance at the surface of the liver in connection with an incomplete acoustic shadow is described.
(13) Patients develop a thoracic kyphosis, a lumbar lordosis, and a protuberant abdomen with prominent horizontal skinfold creases.
(14) Upon further incubation at 37 degrees C, Con A was internalized over the entire cell periphery of the rounded, untreated cells but on collagenase-treated PMNs was rapidly gathered into a cap overlying the uropod or protuberant region of cytoplasm where it was subsequently internalized.
(15) Oxystomatous crabs of the subfamily Calappinae, particularly the genus Calappa, possess a large tooth on the dactyl and a pair of protuberances on the propodus of the right cheliped.
(16) The first case was a six-year-old girl with tumor in the right nostril and epipharynx, the second was a 66-year-old male patient with protuberances in the hypopharynx.
(17) The protuberant form of the papilla developed much earlier than the calyceal muscle which was observed in the late stage of intrauterine life.
(18) In the margin of non cornified squamous cell carcinomas there are as well bud-like cytoplasmic protuberances like microvilli as microplicae.
(19) The young cyst is enclosed by a cyst wall containing numerous small protuberances.
(20) When this fundamental plane was projected to the lateral view on CT scan, it appeared to be almost identical to the line connecting the tip of posterior clinoid process to the internal occipital protuberance (the fundamental line).