Abstract
Every joint of the walking legs and the pedipalps of the tarantula is equipped with at least 2 groups of proprioceptors. There is a total of 18 groups containing around 135 neurones. They lie at the most “strategic” points, i.e. right at the pivots, where stress and strain are maximal during movements. The greatest number, namely 5 groups, is to be found at the coxotrochanteral joint, a ball and socket joint that permits movements in nearly every plane. At least some of the receptor cells are multipolar.
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Abbreviations
- Co :
-
Coxa
- Fe :
-
Femur
- Tr :
-
Trochanter
- Pa :
-
Patella
- T i :
-
Tibia
- M 2 :
-
M. promoter trochanteris major (Bezeichnungen nach Dillon, 1952)
- M 4 :
-
M. levator trochanteris anticus
- M 5 :
-
M. depressor trochanteris medius
- M 7 :
-
M. depressor trochanteris obliquus
- M 8 :
-
M. remotor trochanteris ventralis
- M 9 :
-
M. remotor trochanteris dorsalis
- M 10 :
-
M. flexor femoris bilobatus
- M 11 :
-
M. flexor femoris longus
- M 12 :
-
M. flexor femoris dorsalis
- M 14 :
-
M. flexor patellae major
- M 15 :
-
M. flexor patellae robustus
- M 18 :
-
M. extensor femoris princeps
- M 19 :
-
M. flexor patellae minor
- M 20 :
-
M. extensor femoris posticus
- M 21 :
-
M. promotor tibiae
- M 22 :
-
M. remotor tibiae
- M 23 :
-
M. depressor tibiae anticus
- M 24 :
-
M. depressor tibiae posticus
- M 27 :
-
M. flexor tarsi anticus
- M 23 :
-
M. flexor tarsi posticus
- M 29 :
-
M. depressor praetarsi
- S 29 :
-
Sehne des M. depressor praetarsi
- S 30 :
-
Sehne des M. levator praetarsi
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Mit dankenswerter Unterstützung durch die Deutsche Forschungsgemeinschaft. Herrn Priv.-Doz. Dr. Hölldobler danken wir fur die Durchsicht des Manuskriptes, Herrn Dr. K. E. Linsenmair für die Überlassung einer Walzenspinne und Frau T. Hölldobler für die Hilfe bei der Ausführung der Zeichnungen.
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Rathmayer, W., Koopmann, J. Die verteilung der Propriorezeptoren im spinnenbein. Z. Morph. Tiere 66, 212–223 (1970). https://doi.org/10.1007/BF00280734
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DOI: https://doi.org/10.1007/BF00280734