The Encyclopedia Britannica1899 |
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Page 17
... centres , and on the other by the passage of certain afferent sensory impulses to those vaso - motor centres from ... centre , is , as we have already seen , carried out by protoplasmic cells , many of which are themselves of a mus ...
... centres , and on the other by the passage of certain afferent sensory impulses to those vaso - motor centres from ... centre , is , as we have already seen , carried out by protoplasmic cells , many of which are themselves of a mus ...
Page 23
... centre an axial fibre , the cylinder axis of Purkinje , or band of Remak . The axis- cylinder in a fresh nerve seems to be homogeneous ; but with high powers and proper illumination , and more especially 3 A-- B 2 Fig . 1 . 1 B Fig . 2 ...
... centre an axial fibre , the cylinder axis of Purkinje , or band of Remak . The axis- cylinder in a fresh nerve seems to be homogeneous ; but with high powers and proper illumination , and more especially 3 A-- B 2 Fig . 1 . 1 B Fig . 2 ...
Page 24
... centre it is found to end in the pole or process of a nerve - cell , whilst in the periphery it ends in a terminal organ , in muscle , blood - vessel , gland , skin , or electric organ . It may there- fore be presumed that the axis ...
... centre it is found to end in the pole or process of a nerve - cell , whilst in the periphery it ends in a terminal organ , in muscle , blood - vessel , gland , skin , or electric organ . It may there- fore be presumed that the axis ...
Page 27
... centre . CENTRIPETAL , or AFFER- ENT , or SENSORY , con- veying influences in- wards towards a nerve- centre . 2. Secretory , to the cells of glands , causing secre- tion , possibly a particular kind of secretion . 3. Vascular , or vaso ...
... centre . CENTRIPETAL , or AFFER- ENT , or SENSORY , con- veying influences in- wards towards a nerve- centre . 2. Secretory , to the cells of glands , causing secre- tion , possibly a particular kind of secretion . 3. Vascular , or vaso ...
Page 28
... centre , and ( 3 ) excitation of a motor or efferent nerve , which causes a muscular contraction . The dia- gram in fig . 6 shows the sim- plest mechanism ; but it is rare to find the arrangements so simple , and the mechanism may ...
... centre , and ( 3 ) excitation of a motor or efferent nerve , which causes a muscular contraction . The dia- gram in fig . 6 shows the sim- plest mechanism ; but it is rare to find the arrangements so simple , and the mechanism may ...
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17th century absorbed acid action animal appears artistic become body brain called carbon cards cause cells centre century cerebellum character chief chiefly chlorophyll church clavichord colour connexion consists contains cord corpora quadrigemina death disease early effect England English epic epidemic especially existence feet fibres France French ganglia geotropic gland Government Greek grey matter hand harpsichord important influence irritation king known later less Lithuania living London medulla oblongata ment metabolism metal miles movement muscles nature nerve nerve-cells nervous observed organs oxide oxygen Paris pass Phædo physiological piano Pindar Pinturicchio Pisa Pisistratus Pitt Pius plague plants plate platinum Plato player Płock Podolia poet poetry poison Poland Poles Polish Polycladida posterior pressure probably produced protoplasm regarded Roman Rome Russian sensory side silver Socrates spinet substance surface temperature tion tissue town tube Vistula whole writers