Sökning: "nerve organisation"

Visar resultat 1 - 5 av 7 avhandlingar innehållade orden nerve organisation.

1. 1. New functional and anatomical aspects of the organisation of human peripheral nerve

   Författare :Rolf Ekedahl; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :Somatosensory system; Peripheral nerve organisation; somatotopy; modalitysegregation; cutaneous mechanoreceptors; Human.Huddinge 1996;

   Sammanfattning : The functional topography of peripheral nerves has been studied by various indirect electrophysiological and histological methods. Even though some studies have suggested the presence of a somatotopical arrangement of nerve fibres, the prevailing view is that a random distribution of nerve fibres develops in the nerve due to the repeated rearrangement of nerve fascicles along their centripetal course. LÄS MER

3. 2. Functional organisation and population behaviour of human peripheral nerve fibres : a microneurography study

   Författare :Gung Wu; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :human somatosensory system; nerve organisation; peripheral nerve; cutaneous mechanoreceptors; skin innervation; microneurography; microelectrode;

   Sammanfattning : With regard to the intraneural organisation of peripheral nerves findings obtained from previous anatomical and physiological studies appear to be controversial. The conventional concept seems to be that peripheral nerves lack a detailed topographical organisation. LÄS MER

4. 3. Studies on nerve terminations in human mucosa and skin

   Författare :Marita Hilliges; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :Epithelium; herpes simplex; immunohistochemisry; Merkel cell; mucosa; nerves; oral; PGP 9.5; skin; stereology; urinary incontinence; vagina.;

   Sammanfattning : In spite of their accessibility and important sensory function, the nervous tissue components of human oral and vaginal mucosa and skin have been subject to very few, if any, systematic investigations. Studies on the innervation of oral tissues have mainly focused on the dental pulp, the periodontium and the gingiva, probably because of specific clinical interest, thus largely neglecting the mucosa. LÄS MER

5. 4. Observations on morphology and function of cutaneous and subcutaneous sensory mechanoreceptors : an experimental study in mammals

   Författare :Birgit Stark; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :mechanoreceptors; somatosensory organisation; blood-nerve barrier; Glucose transporter-1; nerve regeneration; TGF-ß family; neurotrophin receptors;

   Sammanfattning : Tactile sensory discrimination is dependent upon an intact system of peripheral mechanoreceptors, their nerve fibre afferents with cell bodies in the dorsal root ganglion and the dorsal column-medial lemniscal system which relays tactile information from the skin to the cortex. Injury to any part of the afferent pathways leads to compromised mechanoreceptive perception. LÄS MER

7. 5. Itch and Pain Inhibitory Mechanisms in Humans - evidence for a differential control of nociceptive senses

   Författare :Hans-Jörgen Nilsson; Neurofysiologi; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; neuropsychology; Neurology; Human; TENS; Somatosensory; Pruritus; Analgesia; Pain; Nociception; neurophysiology; Neurologi; neuropsykologi; neurofysiologi;

   Sammanfattning : It is known that stimulation of thin nerve afferents can inhibit itch and pain and that the nociceptive systems have a detailed topographical organisation, with subsystems exhibiting specific excitatory and inhibitory receptive fields. On this basis, a new technique was developed, termed Cutaneous Field Stimulation (CFS), that electrically stimulates thin nerve fibers innervating specific skin fields. LÄS MER