THE STRUCTURE OF INTERSEGMENTAL MUSCLE FIBERS IN AN INSECT, PERIPLANETA AMERICANA L
نویسندگان
چکیده
منابع مشابه
The Structure of Intersegmental Muscle Fibers in an Insect, Periplaneta Americana L
The organization of intersegmental muscle fibers associated with the dorsal abdominal sclerites of the cockroach is described. These fibers correspond closely, in the disposition and derivation of the membranes of the transverse tubular system and sarcoplasmic reticulum cisternae, with insect synchronous flight muscle fibers, but differ markedly from these in their fibrillar architecture and mi...
متن کاملThe metabolism of acetylcholine in the intact central nervous system of an insect (periplaneta americana l.).
The insect central nervous system is known to be remarkably insensitive to applied acetylcholine. This effect was first demonstrated in the terminal abdominal ganglion of the cockroach when it was shown that synaptic transmission was unaffected by concentrations of up to io~ M acetylcholine in the bathing solution (Roeder, 1948). This level of acetylcholine is more than two orders higher than t...
متن کاملThe penetration of acetylcholine into the central nervous tissues of an insect (Periplaneta americana L.).
The precise physiological role of acetylcholine in synaptic transmission in the insect central nervous system has been a subject of some speculation and controversy. One of the main difficulties involved in postulating the existence of a conventional cholinergic system in the insect central nervous system has been the relative insensitivity of intact ganglia to applied acetylcholine solutions (...
متن کاملLaboratory behavioural assay of insect magnetoreception: magnetosensitivity of Periplaneta americana.
A relatively simple all-laboratory behavioural assay of insect magnetoreception has been developed. We found non-conditioned reactions of American cockroach to the periodical shifts of the geomagnetic field. The movement activity of animals individually placed into Petri dishes was scored as a number of body turns. Test groups were exposed to a 90-min interval with the horizontal component of t...
متن کاملThe Odorous Attractant of the American Cockroach, Periplaneta Americana (l.)
1. Procedures have been developed for studying quantitatively the response of the male American cockroach to the odorous attractant of the female. 2. The percentage of male roaches responding to extracts of the attractant of the female has been found to vary with the log of the concentration of the attractant throughout a wide range. 3. Adaptation to the olfactory stimulus has been demonstrated...
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ژورنال
عنوان ژورنال: Journal of Cell Biology
سال: 1966
ISSN: 1540-8140,0021-9525
DOI: 10.1083/jcb.29.3.449