What's the difference between medullated and nonmedullated?
Medullated
Definition:
(a.) Furnished with a medulla or marrow, or with a medullary sheath; as, a medullated nerve fiber.
Example Sentences:
(1) Thus these data indicate that although the aortic C-fibres are reset in chronic hypertension, they are reset less than the medullated aortic baroreceptors from the same animal.
(2) Four patients had Gorlin's (or basal cell nevi) syndrome and pronounced medullated nerve fibers.
(3) In 9-week-old undernourished rats, the number and caliber of myelinated fibers were normal while the cross-sectional area of non-medullated fibers was 29% smaller than controls.
(4) The threshold for activation of 54 medullated aortic baroreceptors in the same animals was from 70 to 140 (mean 109) mmHg.
(5) After 6 months the histological examination revealed the presence of newly germinated medullated nerve fibers and motor end plates.
(6) In cross sections of the phrenic nerve 1--2 cm above its entrance into the diaphragm, after an incubation period of 24 hours, 86% of the medullated nerve fibres displayed a high enzyme activity and therefore were classified as motoric.
(7) The mean activity at 100 mmHg was, for the C-fibres 5.0 Hz and for the medullated fibres 34 Hz.
(8) Adrenal medullitis was observed in 20% of IDDM subjects, suggesting that the adrenal medulla may be another immunological target in IDDM.
(9) Compared with the medium-energy-diet, the high-energy diet reduced hair weight per unit of surface area, undercoat number and guard hair medullation.
(10) The patient had the typical marfanoid habitus, with thickened lips and alae nasi, neuromas on lips and tongue, medullary carcinoma of the thyroid gland, phaeochromocytomas, and medullated corneal nerve fibres.
(11) The major limitation is a time- and frequency-dependent block of nonmedullated fibers which makes the technique suitable only for differentiating between medullated fibers and nonmedullated fibers with low frequency traffic.
(12) That this inhibition is due to nonmedullated vagal afferents (C fibers) was demonstrated by selective cooling of the vagi, anodal block of medullated afferents, and selective electrical stimulation of medullated and nonmedullated fibers.
(13) No atrial medullated receptors or ventricular C-fibre endings were found.
(14) mmHg (P less than 0.05) in three non-medullated fibres.
(15) Many non-medullated fibres were observed in the villi, especially beneath the epithelial layer.
(16) This case of Schwann cell proliferations appearing as medullated retinal nerve fibers raises questions concerning the relationship of this phenomenon to developmental and acquired lesions of the optic nerve head in man.
(17) In experiments on the isolated aortic arch preparation the electrophysiological characteristics of the aortic baroceptors with the medullated and non-medullated fibres were studied by means of a selective block of conduction in these fibers.
(18) Repetitive stimulation of a single medullated nerve fiber of Xenopus yields a succession of postspike voltage-time curves which are nearly coincident until attainment of a voltage that corresponds to that of the maximum attained by the normal postspike undershoot.
(19) Baroceptors with the non-medullated fibers had a higher threshold pressure and a wider functional range.
(20) The histological studies using electronic microscope showed many non-medullated endings, which were often found beneath the epithelium and in the lamina propria of the villi close to the blood vessels.
Nonmedullated
Definition:
(a.) Not medullated; (Anat.) without a medulla or marrow, or without a medullary sheath; as, a nonmedullated nerve fiber.
Example Sentences:
(1) In the 5-day-old rats, the caliber spectra of myelinated and nonmedullated axons overlapped in the 0.49-0.83 micron2 range and their microtubular densities were similar.
(2) The microtubular content of nonmedullated axons was assessed in trout, lizard, finch, and man.
(3) The mean cross-sectional area of nonmedullated fibers was about 0.50 micron 2 (range: 0.47-0.52) in the three age groups.
(4) In summary, receptors in the heart and lungs with nonmedullated vagal afferents are an important component of the integrated neural control of the circulation.
(5) In nonmedullated fibers, the microtubular density decreased as the size of the axon increased.
(6) However, direct electrophysiological recordings from nonmedullated cardiac efferents during defence area stimulation have hitherto been lacking.
(7) Irrespective of the age of the rat, the number of microtubule profiles of nonmedullated fibers increased with the cross-sectional area of the axon although their packing decreased.
(8) At birth, nonmedullated fibers smaller than 0.2 micron2 represented 69% of the population; at day 63 less than 7% were that small.
(9) This demonstrates that cardiopulmonary receptors with nonmedullated vagal afferents (C fibers) contribute to the tonic inhibition of the vasomotor center.
(10) The major limitation is a time- and frequency-dependent block of nonmedullated fibers which makes the technique suitable only for differentiating between medullated fibers and nonmedullated fibers with low frequency traffic.
(11) Caliber and microtubular content of nonmedullated fibers were assessed only at the far end of the ventral root.
(12) That this inhibition is due to nonmedullated vagal afferents (C fibers) was demonstrated by selective cooling of the vagi, anodal block of medullated afferents, and selective electrical stimulation of medullated and nonmedullated fibers.
(13) In infants with spastic disorders and with congenital dysplasia of the hip (CDH), the microtubular content of nonmedullated and myelinated fibres of the anterior obturator nerves was studied with the electron microscope.
(14) In the finch, myelinated and nonmedullated axons overlapped in the range 0.23-0.60 micron 2 and both groups exhibited similar microtubular densities.
(15) Proportion, caliber, and microtubular content of the L7 ventral root nonmedullated fibers were studied in the cat.
(16) The increases of arterial blood pressure, cardiac inotropy and venous return seen during the hypothalamic defence reaction are likely to lead to concomitant excitation of left ventricular receptors with nonmedullated afferents.
(17) The ventral and dorsal nonmedullated fibers differ slightly but significantly in caliber and microtubule content.
(18) In contrast, the regenerating nonmedullated population was richer in fine (less than 0.2 micron2) and in coarse (greater than 0.9 micron2) fibers than on the control side; the cross-sectional area averages were 0.50 and 0.54-0.70 micron 2 for the normal and regenerating populations, respectively.
(19) In man, the microtubular density of nonmedullated fibers exhibited only a mild decrease with the axonal size.
(20) In anesthetized cats examination was made of the conditions under which the application of DC current to a mixed nerve permits determination of whether a reflex response is mediated by medullated or nonmedullated afferents.