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CHAPTER 23
Sensibility is lost over the whole sole and outer aspect of the foot below the outer
ankle, heel and middle aspect of the calf as well as posterior part of the thighs and saddle
area. However, the hollow of the knee is sensitive due to overlap from L3, L4 and L5
segments.
In 82 lesions the pes calcaneum is no longer present, as gastrocnemius and soleus
are functioning, but the patient is not able to stand on his toes due to the paralysis of the
long flexors and intrinsic muscles of the toes. There is full extension and abduction of the
TABLE 9. Segmental innervation of the muscles of the upper limb
Cervical segments
Thoracic
segments
O
UJ
rr
o
U.
Supraspinatus
Infraspmatus
Subscapulans
Teres minor
Teres major
Deltoid
Biceps brachii
Brachialis
Coracobrochialis
Triceps brachii
Brachioradialis
Anconaeus
Supinator
[Extens. corpi radialis long
|
Extens carpi radialis
Brevis
Pronator teres
[Flexor corpi radialis
Flexor pollicis longus.
Abductor pollicis longus
_____Extensor pollicis brevis
| Extens pollicis longus
] Extens digitorum communis
Extens mdicis propius
T Extens. carpi ulnaris
[Extens. digiti Vpropnus
Flex, digitorum sublimis
Flex digitorum profundus
Pronotor quodratus
Flexor carpi ulnaris
Palmaris longus
Abductor
pollicis brevis
Flexor pollicis brevis
I
Opponens pollicis
Flexor digiti V
Opponens digiti V
Adduct pollicis
Palmaris brevis
Abductor digiti V
Lumbricals
Interossei
