Results 71 to 80 of about 39,707 (258)
Myelin Basic Protein and Cardiac Sympathetic Neurodegeneration in Nonhuman Primates
Neurology Research International, 2021 Minimal myelination is proposed to be a contributing factor to the preferential nigral neuronal loss in Parkinson’s disease (PD). Similar to nigral dopaminergic neurons, sympathetic neurons innervating the heart have long, thin axons which are ...
Jeanette M. Metzger +8 more
doaj +1 more source
A chloride channel in rat and human axons [PDF]
, 1991 Current recordings from single chloride channels were obtained from excised and cell-attached patches of rat and human axons. In rat axons the channels showed an outwardly rectifying current-voltage relationship with a slope conductance of 33 pS at ...
Baker +19 more
core +1 more source
The Anatomical Record, EarlyView.Bioimaging of the sense organs and brain of fishes and reptiles. Left panel: 3D reconstruction of the head and brain of the deep‐sea viperfish Chauliodus sloani following diceCT. Right panel: A 3D reconstruction of a 70‐day‐old embryo head of the bearded dragon Pogona vitticeps following diceCT, showing the position of the segmented brain within the ...
Shaun P. Collin +9 more
wiley +1 more source
Simulation of intrafascicular and extraneural nerve stimulation [PDF]
, 1988 A model of nerve stimulation for control of muscle contraction and ensuing isometrical muscle force has been developed and implemented in a simulation algorithm.
Alste, Jan A. van +2 more
core +2 more sources
Hominoid‐specific calretinin‐immunopositivity of the optic radiation (geniculocalcarine tract)
The Anatomical Record, EarlyView.Calretinin‐immunostained coronal section through the primary (V1) and extrastriate (ExSt) cortex of the lar gibbon. Note that the optic radiation (OR) is strongly calretinin‐immunoreactive. This calretinin‐immunopositivity of the OR distinguishes the Hominoidea from other primates in terms of the neurochemistry of the OR.
Nelyane N. M. Santana +5 more
wiley +1 more source
Solitary electromechanical pulses in Lobster neurons
, 2016 Investigations of nerve activity have focused predominantly on electrical phenomena. Nerves, however, are thermodynamic systems, and changes in temperature and in the dimensions of the nerve can also be observed during the action potential.
Budvytyte, Rima +5 more
core +1 more source
Why do axons differ in caliber? [PDF]
, 2012 CNS axons differ in diameter (d) by nearly 100-fold (∼0.1-10 μm); therefore, they differ in cross-sectional area (d(2)) and volume by nearly 10,000-fold.
Balasubramanian, Vijay +4 more
core +2 more sources
The Anatomical Record, EarlyView.This review redefines the carotid bulb (CB) as a variable geometric dilation shaped by hemodynamics and the carotid sinus (CS) as a conserved neurohistological baroreceptor field. Distinguishing these entities clarifies a century of anatomical confusion and links geometry, neurohistology, and clinical interpretation within a unified framework ...
Răzvan Costin Tudose +2 more
wiley +1 more source
Ring-shaped myelinated retinal nerve fibers at fovea
Indian Journal of Ophthalmology, 2017 We aim to report an unusual case of myelinated retinal nerve fibers (MRNFs) at fovea. A 39-year-old woman presented with visual impairment and her visual acuity was 20/80 in the right eye.
Serdar Ozates, Mehmet Yasin Teke
doaj +1 more source
Paresthesia thresholds in spinal cord stimulation: a comparison of theoretical results with clinical data [PDF]
, 1993 The potential distributions produced in the spinal cord and surrounding tissues by dorsal epidural stimulation at the midcervical, midthoracic, and low thoracic levels were calculated with the use of a volume conductor model.
Barolat, Giancarlo +4 more
core +3 more sources