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Keywords: Hirudo medicinalis
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Journal Articles
J Exp Biol (2008) 211 (4): 630–641.
Published: 15 February 2008
... observed in human occipital cortex during visual stimulation. Proc. Natl. Acad. Sci. USA 98 , 9391 -9395. Dickinson, M. H. and Lent, C. M. (1984). Feeding behavior of the medicinal leech, Hirudo medicinalis L. J. Comp. Physiol. A 154 , 449 -455. Dierkes, P. W., Hochstrate, P. and Schlue, W...
Journal Articles
J Exp Biol (2006) 209 (9): 1746–1756.
Published: 1 May 2006
...Kevin M. Crisp; Karen A. Mesce SUMMARY The biological mechanisms of behavioral selection, as it relates to locomotion, are far from understood, even in relatively simple invertebrate animals. In the medicinal leech, Hirudo medicinalis , the decision to swim is distributed across populations of swim...
Journal Articles
Journal Articles
J Exp Biol (2004) 207 (26): 4535–4542.
Published: 15 December 2004
...Kevin M. Crisp; Karen A. Mesce SUMMARY It is widely appreciated that the selection and modulation of locomotor circuits are dependent on the actions of higher-order projection neurons. In the leech, Hirudo medicinalis, locomotion is modulated by a number of cephalic projection neurons that descend...
Journal Articles
J Exp Biol (2002) 205 (17): 2705–2713.
Published: 1 September 2002
... the dorsal integument of the leech Hirudo medicinalis , and we have established a model of Na + uptake. In the present study, we investigated the effect of long-term acclimation on transintegumental ion transport by adapting leeches to high-salinity conditions. We dissected segments of dorsal integument...
Journal Articles
J Exp Biol (2001) 204 (8): 1509–1517.
Published: 15 April 2001
...Helga Milde; Wolf-Michael Weber; Michel Salzet; Wolfgang Clauss ABSTRACT An increase in intracellular cyclic AMP concentration stimulates transepithelial Na + transport across the skin of the leech Hirudo medicinalis , but it is unclear how cytosolic cyclic AMP levels are elevated in vivo...
Journal Articles
J Exp Biol (1999) 202 (6): 723–728.
Published: 15 March 1999
... glia trophic factor leech Hirudo medicinalis In the leech, regeneration after injury depends on extrinsic factors (see von Bernhardi and Muller, 1995) that can enhance or inhibit axon growth. Such factors include extracellular matrix (ECM) molecules, cell adhesion molecules and growth...
Journal Articles
Journal Articles
J Exp Biol (1998) 201 (12): 1895–1906.
Published: 15 June 1998
... processes of the Retzius cell, enabling a persistent excitatory signal. * e-mail: [email protected] 06 04 1998 21 05 1998 © The Company of Biologists Limited 1998 serotonergic neurone cholinergic response delayed depolarization leech Hirudo medicinalis...
Journal Articles
J Exp Biol (1997) 200 (19): 2565–2573.
Published: 1 October 1997
... Hirudo medicinalis . Exposed glial cells of isolated ganglia were filled iontophoretically with the Ca 2+ indicator dye Fura-2. Application of glutamate (200–500 μmol l −1) caused biphasic membrane potential shifts and increases in [Ca 2+ ] i , which were only partly reduced by either removing...
Journal Articles
J Exp Biol (1997) 200 (16): 2217–2227.
Published: 15 August 1997
...The Company of Biologists Limited 1997 Hirudo medicinalis leech nephridia ion transport urine formation natriuresis Cl - secretion Blood feeders, such as leeches, mosquitos, bugs and ticks, increase their salt and water output following a meal. Although these species occupy different...
Journal Articles
J Exp Biol (1997) 200 (9): 1369–1381.
Published: 1 May 1997
... of behavior with a limited number of neurons is discussed. * Present address: Zoological Institute, University of Zürich, Winterthurer Strasse 190, CH-8057 Zürich, Switzerland (e-mail: [email protected]). 20 02 1997 ©The Company of Biologists Limited 1997 Hirudo medicinalis...
Journal Articles
Journal Articles
J Exp Biol (1996) 199 (6): 1415–1428.
Published: 1 June 1996
... internal pressure biomechanics muscular hydrostat locomotion circular muscles posture leech Hirudo medicinalis Rigidity is required to provide the best posture for the efficient transfer of force from muscle to motion. In organs that contain skeletal tissue, the degree of freedom to move...
Journal Articles
J Exp Biol (1995) 198 (9): 1989–1994.
Published: 1 September 1995
...B. Calabrese; M. Pellegrino ABSTRACT The regeneration pattern of two identified central neurones was studied in the leech Hirudo medicinalis . Anterior pagoda (AP) and mechanosensory touch-sensitive (T) neurones were stained in adult segmental ganglia, maintained in culture for 6–10 days. AP...
Journal Articles
J Exp Biol (1995) 198 (6): 1405–1415.
Published: 1 June 1995
... immunoreactivity and its colocalization with FMRFamide-like immunoreactivity in the central nervous system of the leech Hirudo medicinalis . Cell Tissue Res. 257 , 187 – 199 . Evans , B. D. , Pohl , J. , Kartsonis , N. A. and Calabrese , R. L. (1991). Identification of RFamide...
Journal Articles
Journal Articles
J Exp Biol (1994) 186 (1): 43–54.
Published: 1 January 1994
... 1993 © 1994 by Company of Biologists 1994 regeneration invertebrate connectives leech Hirudo medicinalis A key question in regeneration of the nervous system concerns the identity of factors required for growth and synapse formation to occur. To what extent does the target...
Journal Articles
Journal Articles
J Exp Biol (1993) 182 (1): 265–270.
Published: 1 September 1993
... localized in or near surface folds. 5 5 1993 © 1993 by Company of Biologists 1993 behavioural state distension feeding Hirudo medicinalis neurotoxin serotonin During the ensuing consummatory phase of hunger, leeches ingest blood meals which increase their volume...