Diseases of the nervous system / by Judson S. Bury.

  • Bury, Judson S. (Judson Sykes), 1852-1944.
Date:
1912
Catalogue details

Licence: Public Domain Mark

Credit: Diseases of the nervous system / by Judson S. Bury. Source: Wellcome Collection.

    41/856 (page 13)
    Apices of Spinous Superficial Origin of Processes. Nerve-roots. Muscles Supplied. DIO.. ....L 1 Quadratus lumborum. L 2 Cremaster. Dll.. ....L 3 Sartorius. Adductors and flexors of hip. L 4 Quadriceps cruris. Abductors of hip. L 5 Flexors of knee. S 1 Calf muscles. S 2 Glutei. Peronei. Anterior tibial muscles. Intrinsic muscles of foot. D12 .. S 3 ] S 4 S 5 | Perineal muscles connected with mic- l turition, defalcation, erection 1 and ejaculation. L 1. AFFERENT PATHS. Sensory Path. According to the recent researches of Head there are three sets of sensory fibres conveying different sensations, namely: (1) Fibres which subserve deep sensibility; these respond to pressure and conduct impulses produced by movements of tendons, joints and muscles and thus give information regarding the degree of movement and the position of a part. Such fibres are believed by Head to run with the motor nerves, for they are not destroyed by the division of all the sensory nerves to the skin. (2) Fibres which subserve proto- patihic sensibility; these respond to painful cutaneous stimuli and to the extremes of heat and cold. They regenerate rapidly when the ends of a divided nerve have been united. (3) Fibres which subserve epicritic sensibility; these fibres convey stimuli due to the lightest touch and enable the individual to discriminate between two points, and to recognise the finer grades of temperature. They are more readily injured and regenerate more slowly than those of the protopathic system.