Abstract

CASANUEVA, María E.. MUSCULAR SYSTEM OF THE Amblyomma americanum  LARVAE  (ACARI: IXODIDAE). Rev. chil. anat. [online]. 2001, vol.19, n.3, pp.285-290. ISSN 0716-9868.  http://dx.doi.org/10.4067/S0716-98682001000300009.

The muscular system of Amblyomma americanum larvae from the morphological and functional point of view is studied.  The capitulum is moved by four muscles: two depressors and two levators. Chelicerae have three muscles: retractor, flexor and digit extensor. Each segment of the palp presents two muscles - flexor and extensor - which permit the lateral movements of the palp. Legs have a pair of muscles (flexor and extensor) with opposing action, related to each segment; coxae present two series more of muscles, the abductor and the adductor. The most evident systems of the body are dorso-ventral and they are inserted in the ventral side of the body

Keywords : Muscular system; Larvae; Amblyomma americanum.