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Title: Myogenic contraction of a somatic muscle powers rhythmic flow of hemolymph through Drosophila antennae and generates brain pulsations
ABSTRACT Hemolymph is driven through the antennae of Drosophila melanogaster by the rhythmic contraction of muscle 16 (m16), which runs through the brain. Contraction of m16 results in the expansion of an elastic ampulla, opening ostia and filling the ampulla. Relaxation of the ampullary membrane forces hemolymph through vessels into the antennae. We show that m16 is an auto-active rhythmic somatic muscle. The activity of m16 leads to the rapid perfusion of the antenna by hemolymph. In addition, it leads to the rhythmic agitation of the brain, which could be important for clearing the interstitial space.  more » « less
Award ID(s):
2037828
NSF-PAR ID:
10318293
Author(s) / Creator(s):
; ;
Date Published:
Journal Name:
Journal of Experimental Biology
Volume:
224
Issue:
20
ISSN:
0022-0949
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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