. Fig. 57,1., shows superior portion of the cerebrum; II., the lateral surface; and I., II., III., IV. are the four convolutions.; S, is the sulcus cruciatus; F, the fissure of Sylvius; 0, the bulbus olfactorius; p, is the optic nerve. The motor centres are : 1, for the muscles of the neck; 2, for the extensors and adductors of the anterior limbs; 3, for the flexors and rotators of the anterior limbs; 4, for the muscles of the posterior limbs ; 5, for the facial muscles; 6, for the lateral movements of the tail; 7, for the retraction aiad adduction of the anterior limbs ; 8, for the lifting of
. Fig. 57,1., shows superior portion of the cerebrum; II., the lateral surface; and I., II., III., IV. are the four convolutions.; S, is the sulcus cruciatus; F, the fissure of Sylvius; 0, the bulbus olfactorius; p, is the optic nerve. The motor centres are : 1, for the muscles of the neck; 2, for the extensors and adductors of the anterior limbs; 3, for the flexors and rotators of the anterior limbs; 4, for the muscles of the posterior limbs ; 5, for the facial muscles; 6, for the lateral movements of the tail; 7, for the retraction aiad adduction of the anterior limbs ; 8, for the lifting of the shoulder and extension of the front limb (walking); 9,9, for the orbicularis palpebrarum, zygomaticus, and closing of the eyelid; I., t, the heat- centre of Eulenberg and Landois. (Landois.) Fig. 57, II., a, a, retraction and elevation of the corners of the mouth ; 6, opening of the mouth and movements of the tongue; d, the opening of the eyelids.
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Photo credit: © The Bookworm Collection / Alamy / Afripics
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Keywords: ., bo, bookcentury1800, bookdecade1890, booksubjectdogs, bookyear1897
