njemački

Histologische und funktionelle Beobachtungen am Zwerchfell fon Damhirschen (Dama dama) aus dem Naturpark Brionische Inseln (Kroatien)

Samples of the pars costalis and both crura of the lumbar part of the diaphragm of 1-5 years old fallow deer (Dama dama) of both sexes from the national park Brijuni (Croatia) were studied histologically. On photographs the diameter of 4, 138 muscle fibers was measured and the fibers were classified on the basis of their diameters. The costal part and both crura comprised muslce fibers of different diameters, ranging from 10-60 um (costal part), 10-65 um (left crus) and 10-70 um (right curs). All there phrenic parts contained relatively few fibers with small dimeter of up to 20 um (11-15%), slightly more fibers with diameters over 40 um (15-23%), and mostly medium-sized fibers with diameters between 21-40 um (63-72%). Our findings suggest that contrary to horses, cattle, sheep and pigs, in which steady or laboured breathing engages either costal or lumbar part of diaphragm, in fallow deer these types of breathing and non-respiration engage both diaphragmatic parts simultaneously.

Damhirsch (Dama dama); Zwerchfell; Muskelfasern

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