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simply from lost peripheral susceptibility to impressions, from
nerve exhaustion, as by over-use or over-excitation, or if it
is what is called functional, as, for instance, is often found
in females about puberty, then electricity can act with its
own peculiar potency and success. On the contrary, when the
cause is from organic lesion, it is scarcely necessary to repeat,
that no benefit can be expected from electricity, or any other
means whatever; for anaesthesia may be caused by diseases of
the nervous centres, nerve trunks, or of the sentient nerves.
Whatever be the original lesion, that must be first subdued.
Then, if we very sharply " Faradaize the skin" with strong
electro-magnetic currents, using the wire brush or metallic balls
as the electrodes, and applied close together, the sensibility will
be most readily awakened and reestablished. (See pp. 238,341,
and G, 5.)
Traumatic Paralysis.
If all the fibrils of a nerve trunk are destroyed, then the
properties of the depending muscles are totally lost. Cases of
this kind are entirely incurable and beyond hope, unless a re-
generation of nerve and function can be brought about. Of
1. Annular Ligament.
2, 2. Origin and Insertion of the Abduc-
tor Follicis.
3. Opponcns Pollicis.
4, 5. Two Bellies of the Flexor Brevis
Pollicis.
6. Adductor Pollicis.
7, 7. Lumbricales, arising from Tendons
of the Flexor Profundus Digi-
torum.
8. Shows how the Tendon of the Flexor
Profundus passes through the
Flexor Sublimis.
9. Tendon of the Flexor Longus Pol-
licis.
10. Abductor Minimi Digiti.
11. Flexor Parvus Minimi Digiti.
12. Pisiform Bone.
13. First Dorsal Interosseous Muscle.
A View of the Muscles of the Palm
of the Hand.