(a.) Bending in and out; of a serpentine or undulating form; winding; crooked.
Example Sentences:
(1) The astrocytes had generally two types of processes: (1) thread-like processes of relatively constant width with few ramifications and few lamellar appendages and (2) the sinuous processes with clusters of lamellar appendages.
(2) In the intercellular space long and smooth septa are clustered in sinuous strands and intramembrane particles appear on the PF.
(3) According to observations carried out in ovo and after fixation, morphological modifications are demonstrated in the developing vasculature of the heparin-treated CAMs which, compared with the control CAMs, show dilated and sinuous arterial and venous branches, denser and irregular capillary networks, and a high number of vascular primordia.
(4) This structure contains cells with single or double nuclei, round or oval in shape, surrounded by a light halo, with scattered chromatin and a well-defined nucleolus, acidophilic cytoplasm containing, in comparison with the common myocardium, few sinuous myofibrils with transverse striations and a larger amount of glycogen.
(5) The sinuous processes rich in lamellae were predominant in protoplasmic astrocytes, and clearly corresponded to the sheet- or veil-like processes of Golgi-impregnated astrocytes.
(6) In the heart of the dog five types of thebesian veins were served: arboriform, sinuous, brush-like, canaliculated and stellate.
(7) Using cetylpyridinium chloride (CPC) in glutaraldehyde as fixative, we observed sinuous fiber-like structures 300-500 nm long and 7-14 nm thick in the spaces between the collagen fibers of rat incisor predentin.
(8) Some PtK-2 cells have straight stress fibers which stained with anti-actin, but in confluent cultures all PtK-2 cells have, instead, sinuous phase-dense fibers which stained with antibody.
(9) Finally, three XN-cells were intrageniculate interneurons, which possessed small somata (mean soma size = 174 micron2), fine sinuous dendrites covered with beadlike varicosities on stalked appendages, and no obvious axon.
(10) This layer is characterized by flattened cells with sinuous processes, extracellular spaces containing an amorphous material, and the presence of junctions between its cells.
(11) The Four,” as they came to be called, created in the mid-nineties their own highly individual interpretation of the new art, subsequently dubbed “the Glasgow Style.” They liked sinuous, elongated animal-vegetable forms with a strong vertical emphasis in their overall design; the human figure, too, was stylised almost beyond recognition.
(12) Its cell body is usually found in the inner half of the SG layer and its sinuous dendrites cross the SG layer and enter the marginal layer.
(13) Arterial angiography identifies polyaneurysmal dystrophy; in the context of a twisted and sinuous system of large arteries, multiple spindle-shaped aneurysms can be distinguished which are frequently bilateral and symmetrical.
(14) In the ALD intestinal epithelium, DAB+ material was also seen in long, sinuous, tubular or cisternal elements intermingled and occasionally in continuity with peroxisomes.
(15) The mantle dentin contains sinuous tubules with a type I arrangement of SIAR classification (1986).
(16) The cells of papillary thyroid carcinoma are shown to have the following characteristic morphological features: oval or oval to roundish shape of nuclei, uneven sinuous, folded border of the nuclear membrane, nuclear fissure, intranuclear cytoplasmic inclusions, optically clean nuclei.
(17) In the cervical enlargement of the rat spinal cord, fluoride-resistant acid phosphatase (FRAP) occurs in most of the small dark sinuous primary afferent central terminals (CI-terminals) of type I-synaptic glomeruli of lamina II and is lacking in the large light roundish primary afferent CII-terminals of type II-glomeruli.
(18) Degeneration of the tactile cells in epithelium of the cat sinuous hairs after sectioning the infraorbital nerve manifests itself as cytoplasmic vacuolization and induration with electron opaque bodies in it, changes in nuclear configuration and in chromatin density.
(19) The cytoplasm of macrophages gives only short, somewhat sinuous processes.
(20) Selective arteriography of the coeliac trunk showed extremely sinuous intra-hepatic arteries in 3 of these cases, and obstruction of the portal vein, in one case.
Tortuous
Definition:
(a.) Bent in different directions; wreathed; twisted; winding; as, a tortuous train; a tortuous train; a tortuous leaf or corolla.
(a.) Fig.: Deviating from rectitude; indirect; erroneous; deceitful.
(a.) Injurious: tortious.
(a.) Oblique; -- applied to the six signs of the zodiac (from Capricorn to Gemini) which ascend most rapidly and obliquely.
Example Sentences:
(1) Their tortuous or irregular outline did not usually correspond in position or appearance to normal tributaries of the vein.
(2) In the lateral segment of the left hepatic lobe, the bile ducts were anterior to the portal vein in seven cases, posterior in seven, and tortuous (ie, both anterior and posterior) in three.
(3) Carotid angiography demonstrated that the left internal carotid artery was tortuous toward the medial side in the C2 portion, and the saccular aneurysm was present in the anterior temporal artery 3 mm distal from the middle cerebral artery.
(4) The crypts of Lieberkühn were tortuous at the base.
(5) APV was less accurate in a 7.94-mm straight tube and in tortuous segments.
(6) A patient with trigeminal neuralgia caused by a tortuous vertebrobasilar artery is reported.
(7) The arterial anatomy of renal transplants is often complex, with overlapping, tortuous vessels which prevent easy visualisation of the origins of the transplant artery.
(8) The IMF, citing deep-seated concerns over the country’s debt sustainability, has still not decided whether it should participate in the third bailout Athens signed up to after months of tortuous negotiations in mid-2015.
(9) The close (20 nm) apposition between the membranes of the migrating cell and the radial fibre is maintained even in areas where the fibres bend or curve tortuously.
(10) Tortuous aortas, pancreatic pseudocysts, metastatic cancers, lymphomas, and low-lying livers may all present as pulsatile masses clinically mimicking an aortic aneurysm.
(11) This is in contrast to an expanded and tortuous granulomalike vascular network which was found around an abscess in chronic pulpitis.
(12) Using an iris vascularity scale that ranged from Grade 0 with no visible vessels to Grade 4 with dilated and tortuous vessels, we found that the intoxicated infants had increased grades in the iris periphery and collarette (P less than .02) as compared to 36 control newborns who had no cocaine in their urine.
(13) A second type of microtubule, smaller in diameter and tortuous in form, was also seen in certain cells and is presumed, from its shape, to have little to do with cytoplasmic support.
(14) The tortuous basement membrane features numerous hemidesmosomes along its length.
(15) The inter-Sertoli junctions are tortuous and predominantly perpendicular to the basal lamina.
(16) An elongated and tortuous vertebral artery was recognized at the left cerebello-pontine angle both by CT scan and vertebral angiograms.
(17) This condition is characterized by a decreased caliber of the internal carotid arteries and bilateral occlusion of the anterior and middle cerebral arteries with visualization of an extensive collateral network of tortuous blood vessels of the rete mirabile type at the base of the brain.
(18) The case of a 66-year-old woman who developed both trigeminal neuralgia and hemifacial spasm caused by a tortuous vertebrobasilar system is reported.
(19) The axons of all cell types were tortuous, and some entered the dorsolateral fascicle before crossing into the dorsal column: collaterals were often seen but could not be followed far.
(20) Golgi analysis of neocortical dendritic spine morphology extended our previous observations of immature, long, tortuous spines in one adult case of fraX (Rudelli, et al., Acta Neuropathologica 67:289-295, 1985) to 2 new cases.