(n.) The head; also, a knoblike protuberance or capitulum.
(n.) The top or superior part of a thing.
(n.) The council or ruling body of the University of Cambridge prior to the constitution of 1856.
Example Sentences:
(1) The nuclei were isolated from boar spermatid or sperm cells at three distinct stages of spermatogenesis: just before the completion of a maturation process in the testis (late spermatid), immediately after a subsequent transformation into spermatozoa (caput spermatozoon), and after full maturation (cauda spermatozoon).
(2) Rat spermatozoa were recovered from the caput, corpus, and cauda epididymides and assayed for glycosidase activity, total nonamino (neutral) carbohydrate, and protein content.
(3) Flagellar movement of golden hamster spermatozoa obtained from the testis and the caput and cauda epididymides was observed by a light microscope while holding them at their heads with a micropipette.
(4) Results indicate that sperm first exhibit WGA reactivity on their flagellae in the region of the distal caput, and that the appearance of WGA receptors is due to the binding of a 54-Kd glycoprotein (SMA4) to the cell surface.
(5) There were no changes in SGP-2 mRNA concentrations in the initial segment and caput epididymidis.
(6) These binding sites, localized in the circumference of the epididymal tubule and most concentrated within the proximal cauda, are present throughout the caput, corpus, and remaining cauda epididymis.
(7) During the first 15 days of the postnatal life, the histochemical reaction intensities were identical from the caput to the cauda epididymidis.
(8) The 8.2S form of the AR is also present in all three segments of the immature epididymis, with the highest concentration occurring in the caput.
(9) Filaments were least prominent in intact caput spermatozoa and most prominent in ejaculated spermatozoa.
(10) Adult Wistar rats were bilaterally caput epididymectomized and the effects on testicular germinal epithelium and formation of multinucleated bodies were studied and quantified at 2, 4, 7, 14, 21, and 28 days after surgery.
(11) Most of the caput epididymidis was composed of efferent ducts.
(12) Dibutyryl cAMP and cAMP stimulated caput spermatozoa but had no effect on cauda spermatozoa.
(13) Eventually efferentectomized animals showed a progressive alteration, but its level was much lower than that observed after partial epididymectomy, indicating a possible specific function of the caput epididymidis in the control of testicular function.
(14) In all the principal cells of the caput, the supranuclear ER cisternae were heterogeneously impregnated.
(15) These immunoreactive pale cells occurred in the distal caput and proximal corpus of the epididymidis.
(16) The changes in the weight, histology and biochemical composition of the epididymis (caput, corpus and cauda segments) in prepuberal rabbit and rhesus monkey in response to testosterone treatment were investigated.
(17) A well circumscribed area of necrotic bone was demonstrated in the weight bearing part of the caput giving evidence of a solitary infarction.
(18) Spermatozoa from the caput epididymis are known to be much less capable of fertilization when compared to sperm from more distal segments of the epididymis.
(19) Analysis by two-dimensional gel electrophoresis of proteins secreted directly into the epididymal luminal fluid revealed that clusterin was secreted by caput epithelium and not by the corpus and cauda epithelium.
(20) When a caput succedaneum has developed in the measuring area the mean value of the tcPco2 is significantly higher (62.70 mmHg instead of 55.14 mmHg respectively 68.98 mmHg instead of 65.98 mmHg) at 39 degrees C respectively 44 degrees C. No significant influence of different preparation techniques of the measuring site has been found during this investigation.
Knob
Definition:
(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.