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47
paa »lange Slags Maader, og paa Tversnit danne disse
Saftkanaler med deres Forgreninger særegne Figurer, der
let kunne antages for særegne Legemer, hvilket ogsaa Dr.
Lindahl sandsynligvis har gjort; han kalder dem nemlig
"stjernformiga korpuskier". Binclevævslegemer ere her
yderst sparsomme og kunne ikke let forvexles med de
nysnævnte Saftkanaler, der ere forsynede med Epithel, som
tildels ganske udfylder Luntenet, Fig. 39, g. 40, li, i.
Tverkanalerne have meget forskjellig Fonn; de ere
smale og vide om hverandre med rige, anastoiuoserende
Forgreninger, Fig. 36, c. og danne hyppig store
Udvidnin-ger (Laguner), hvorfra udløbe smalere Kanaler, Fig. 39. i.
40. li. Tverkanalerne med deres Laguner ere beklædte
med et Epithel, bestaaende af lignende Celler som de. der
ere omtalte ved Længdekanalerne, Fig. 39, i, k. 40, l.
Imellem Liengde- og Tverkanalerne iagttages smale
Sidekanaler, der udgaa fra Længdekanalerne, hvorved Kom.
niunikationen frembringes, og disse Kanaler ere beklædte
med et lignende Epithel. Fig. 39, 1. 40. ni. Der findes
ingen Muskler hverken i Tverkanalerne eller i dem,
hvorigjennem Kommunikationen med Længdekanalerne foregaar.
Den indre Flade af det hyaline Bindevæv, der altsaa
vender til de 4 Længdekanaler, er beklædt med et Epithel,
bestaaende af Here Lag Celler, som fuldkommen ligner de,
der findes paa Septa, og som tidligere ere omtalte. Paa
hele den indre Flade af Stokkens Coenenchym sees en
Mængde større og mindre, dels runde, dels aflange
Aabninger, Fig. 32, e, hvorigjennem det nu beskrevne
Kanalsystem kommunicerer med de 4 Hovedlæugdekanaler.
Trans-verselle eller circulære Muskler findes ikke.
Dr. Lindahl angiver, at "Skaft’väggens struktur visar
innerst en fortsättning af santma celiager, som bekläder
sidorua af septa. For üfrigt utgöres viiggens inre hälft af
fibrillar bindväf genomdragen [af en mängd tvärgående
niuskelfibrer, stundom förenade till större muskelpartier;
närmare midten er bindväfven en homogen substans, livari
tvärkanalerna löpa, ocli äfven mellan dem inflätar sig en
ocli annan strimma af tvärmuskler. Vaggens yttre hälft
består af bindväf med stjernformiga korpuskier, ocli deri
återfinna vi de forut omtalade långskanalerna med sitt lager
af langsgående muskler. Ytterst finnas har ocli der
lem-ningar efter ett genom sprit ocli skafning forstördt
epithelium."
nucleus is 0,002""" broad (fig. 40, g). The hyaloid
connective-tissue layer is very broad, and forms a
reticulation of transverse canals, which ramify in all directions,
and import to the sarcosoma it’s spongy character (tigs.
36, c, 39, g, 40, h). This hyaloid connective-tissue is
penetrated, bv a great number of minute nutrient ducts,
which ramify in all directions; and the sectional aspect
of these secretory canals with their ramifications,
displays peculiar forms, which might, easily, be taken for
separate bodies; this Dr. Lindahl has, probably, also,
done, as lie calls them: "stellate corpuscles". The
connective-tissue bodies, are, in this situation, very sparse, and
can not, readily, be mistaken for the secretory canals just
spoken of; and which are furnished with epithelium, that
iu a. measure, completely, fills the canal (figs. 39, g,
40, h. i).
The transverse canals have a very variable form.
They are narrow and wide, irregularly; and have
multitudinous anastoiuozing ramifications (fig. 36, c) and, often,
form large dilations (lagunes) from which narrower canals
issue (figs. 39. i, 40, k). The transverse canals with their
lagunes, are covered with an epithelium, consisting of
similar cells to those spoken of in connection with the
longitudinal canals (fig. 39, />, 40, I).
Between the longitudinal and the transverse canals,
narrow lateral canals are observed, which issue from the
longitudinal canals, and by which, the circulation is
effected; these canals are covered with a similar
epithelium (fig. 39, /, 40, m). No muscles are found; neither in
the transverse canals, nor in those in which the circulation
with the longitudinal canals proceeds. The inner surface
of the hyaloid connective-tissue; consequently, that facing
towards the 4 longitudinal canals; is covered with an
epithelium consisting of several layers of cells, exactlv,
resembling those observed on the septa, which have been
already spoken of. On the whole of the inner
surface of the sarcosoma of flu« stalk, a multitude of larger
and smaller, partly, round, partly, oblong, apertures (fig.
32, e) are observable; through which, the lately described
ductiferous system communicates with the 4 longitudinal
canals. Transversal, or circular muscles, are nowhere
found.
Dr. Lindahl states, that "the structure of the wall"
"of the shaft, shows, interiorly, a continuation of the same"
"cell-layer as covers the sides of the septa. Otherwise, the"
"inner half of the wall is composed of fibrillous connective"
"tissue, penetrated by a multitude of transverse muscular"
"fibres, sometimes united to larger muscle bundles; nearer"
"the middle, the connective tissue becomes a homogenous"
"substance, in which, the transverse canals pass, and above,"
"between them, an occasional band of transverse muscles"
"appears. The exterior half of the wall, consists of connect-"
"ive tissue, containing stellate corpuscles, and here, we"
"find, again, the longitudinal canals previously spoken of"
"with their layer of longitudinal muscles. Exteriorly, there"
"is found, here and there, the remains of an epithelium, de-"
"stroyed by abrasion, and by the spiritous preservation."
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