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272 ANA T03TY.

Fig. 132.

Modes of Termination of the Nerves in the Salivary Glands : 1 and 2, branching of the nerves between
the salivarj- cells; :>, termination of the nerve in the nucleus; 4, union of a ganglion-cell with a
salivary cell; 5, irregularly enlarged nerve-libres entering the cylindrical cells of the excretory
ducts.
that both medullated and non-medullated fibres pass directly into the
secreting cells of the salivary glands of man (Fig. 132). Knpifer has
described the same connection
Fig. 133.
^^ nerves in some of the in-
sects.
The Peripliend End-organs
of 3Iofor Nerves are of two
kinds—viz. those supplying
involuntary or non- striated
muscular tissue, and those sup-
plying voluntary or striated
muscular tissue.
Tlie first class, those of the
involuntary or non-striated or
smooth muscular tissue (Fig.
133), belong to the sympathetic
nervous system or non-medul-
lary nerve-fibres. The fibres
of these nerves penetrate and
divide in the connective tissue
which surrounds the bundles
and muscular fibres. In this
position the axis-cylinder di-
vides into its ultimate fibrillse,
Termination of Nerves in Non-striped Muscular Tissue.
these ending, according to Elis-
cher, in a slight bulbous expansion opposite the nucleus of a contract-
ing cell.
The peripheral end-organs of voluntary or striated muscular tissue
belong to the medullary nerve-fibre, and are known as motorial end-
phdes or end-phde.s of Ki'dnie (Fig. 134). As the nerve-trunk advances
toward its distribution it divides and subdivides into its fibres, each