(1) Recordings were made from secondary vestibular axons in the medial longitudinal fasciculus (MLF) of barbiturate-anesthetized squirrel monkeys.
(2) In lampreys, the majority of HRP-labeled cells were located along the length of the brainstem reticular formation in the inferior, middle, and superior reticular nuclei of the medulla, mesencephalic tegmentum, and nucleus of the medial longitudinal fasciculus.
(3) In the brain stem, dense bundles of the descending fibres were found in the central and the medial tegmental tracts and in the medial longitudinal fasciculus.
(4) The potential role of the habenula in the transsynaptic regulation of the activity of ascending dopaminergic systems has been investigated in the rat by studying the effect of an acute interruption of impulse traffic in the diencephalic conduction system (stria medullaris-habenula-fasciculus retroflexus) and of pharmacological manipulation of various neurotransmitter systems in the interpeduncular nucleus on dopamine metabolism in several dopaminergic projection fields.
(5) Magnetic resonance imaging clearly showed a rostral lesion of the paramedial pontine reticular formation and the medial longitudinal fasciculus.
(6) Most of the giant PnC neurons sent their axons caudally into the medial longitudinal fasciculus and can therefore be regarded as reticulospinal neurons.
(7) Its axons take an ascending direction to the posterior commissure, and not to be medial longitudinal fasciculus as has been conventionally described.
(8) This latter pathway constitutes a part of the classically described arcuate fasciculus.
(9) Anatomopathologic findings in the two cases show that the OPT runs in front of the Medial Longitudinal Fasciculus or in the lateral tegmentum and that it decussates, at least once, below the upper pons.
(10) Because of the more caudal position of the amygdala in the rabbit, the comparable fasciculus passed directly caudally and exhibited only slight arching.
(11) Light microscopic examination showed the main stem axons to be lateral to the medial longitudinal fasciculus, and terminal boutons were in contact with ipsilateral identified MR motoneurons (Furuya and Markham: Exp.
(12) In the cat and dog, only the posterior fibers of the superior fasciculus were detected.
(13) Specifically, the labeled primary afferent axons and their collateral branches were found in the fasciculus cuneatus, and in laminae I, II, III, and IV of the dorsomedial aspect of the dorsal horn.
(14) The metastatic lesions in both paramedian pontine reticular formation and medial longitudinal fasciculus were considered to be causative of her one-and-a-half syndrome.
(15) The neurons had significantly decreased conduction velocities, both in the fasciculus gracilis and in the periphery.
(16) These lesions were followed by segregation of the nucleolus, axon reaction-like changes in the cytoplasm and axonal degeneration of both peripheral axons in the sural nerve and central axons in the fasciculus gracilis.
(17) Fewer labelled cells occurred in the mesencephalon and rhombencephalon but groups were seen in the region of the central grey, lateral lemniscus, parabrachial and tegmental nuclei, medial longitudinal fasciculus and nucleus of the solitary tract.
(18) Most medullary BRN project to the spinal cord via the medial longitudinal fasciculus (mlf) and sulcomarginal fasciculus.
(19) Increases of over 100% were seen in the superior colliculus, nucleus of the optic tract, and portions of the accessory optic system (medial and dorsal terminal nuclei, and the inferior fasciculus).
(20) Both forms are organized either by a fasciculus of axons, or by single axons, and they innervate either single myocytes, or their group.
Muscle
Definition:
(n.) An organ which, by its contraction, produces motion.
(n.) The contractile tissue of which muscles are largely made up.
(n.) Muscular strength or development; as, to show one's muscle by lifting a heavy weight.
(n.) See Mussel.
Example Sentences:
(1) The extents of phospholipid hydrolysis were relatively low in brain homogenates, synaptic plasma membranes and heart ventricular muscle.
(2) It was found that the skeletal muscle enzyme of the chick embryo is independent of the presence of creatine and consequently is another constitutive enzyme like the creatine kinase of the early embryonic chick heart.
(3) These immunocytochemical studies clearly demonstrated that cells encountered within the fibrous intimal thickening in the vein graft were inevitably smooth muscle cell in origin.
(4) We have amended and added to Fabian's tables giving a functional assessment of individual masticatory muscles.
(5) During the performance of propulsive waves of the oesophagus the implanted vagus nerve caused clonic to tetanic contractions of the sternohyoid muscle, thus proving the oesophagomotor genesis of the reinnervating nerve fibres.
(6) Muscle weakness and atrophy were most marked in the distal parts of the legs, especially in the gastrocnemius and soleus muscles, and then spread to the thighs and gluteal muscles.
(7) No monosynaptic connexions were found between anterodorsal and posteroventral muscles except between the muscles innervated by the peroneal and the tibial nerve.
(8) Thus adrenaline, via pre- and post-junctional adrenoceptors, may contribute to enhanced vascular smooth muscle contraction, which most likely is sensitized by the elevated intracellular calcium concentration.
(9) In addition to their involvement in thrombosis, activated platelets release growth factors, most notably a platelet-derived growth factor (PDGF) which may be the principal mediator of smooth muscle cell migration from the media into the intima and of smooth muscle cell proliferation in the intima as well as of vasoconstriction.
(10) Further, the maximal increase in force of contraction was measured using papillary muscle strips from some of these patients.
(11) Peripheral eosinocytes increased by 10%, and tests for HBsAg, antiHBs, antimitochondrial antibody and anti-smooth muscle antibody were all negative.
(12) When subjects centered themselves actively, or additionally, contracted trunk flexor or extensor muscles to predetermined levels of activity, no increase in trunk positioning accuracy was found.
(13) A definite relationship between intelligence level and the type of muscle disease was found.
(14) After vascular injury, smooth muscle cells proliferate, reaching a maximum rate at day 2.
(15) In the absence of an authentic target for the MASH proteins, we examined their DNA binding and transcriptional regulatory activity by using a binding site (the E box) from the muscle creatine kinase (MCK) gene, a target of MyoD.
(16) Only the approximately 2.7 kb mRNA species was visualized in Northern blots of total cellular and poly(A+) RNA isolated from cardiac ventricular muscle.
(17) The variation of the activity of the peptidase with pH in the presence of various inhibitors was investigated in both control and insulted muscle fibres.
(18) Recent studies have shown that an aberration in platelet-derived growth factor gene expression is unlikely to be a factor in proliferation of smooth-muscle cells.
(19) This sling was constructed bu freeing the insertion of the pubococcygeus and the ileococcygeus muscles from the coccyx.
(20) Their effects on various lipid fractions, viz., triglycerides (TG), phospholipids, free cholesterol, and esterified cholesterol, were studied in liver, plasma, gonads, and muscle.