(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.
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).