Class-book of physiology : for the use of schools and families : comprising the structure and functions of the organs of man, illustrated by comparative reference to those of inferior animals . PLATE XXI. OltGANS OF MOT ION--THE MUSCLES. LATERAL VIEW OF THE PRINCIPAL MUSCLES OF THE HUMAN BODY. Muscles of the Head and Neck,—1, The occipilo-frontalis muscle, which elevates theeyebrows, and wrinkles the forehead, expressing astonishment or attention. 2, The orbic-ularis palpebrarum, which closes the eyelids. 3, Triangularis nasi, which compresses thenostrils. 4, The levator labii superioris, whic
Class-book of physiology : for the use of schools and families : comprising the structure and functions of the organs of man, illustrated by comparative reference to those of inferior animals . PLATE XXI. OltGANS OF MOT ION--THE MUSCLES. LATERAL VIEW OF THE PRINCIPAL MUSCLES OF THE HUMAN BODY. Muscles of the Head and Neck,—1, The occipilo-frontalis muscle, which elevates theeyebrows, and wrinkles the forehead, expressing astonishment or attention. 2, The orbic-ularis palpebrarum, which closes the eyelids. 3, Triangularis nasi, which compresses thenostrils. 4, The levator labii superioris, which raises the upper lip and expands the nos-trils, expressing disdain. 5, Zygomaticus major. 6, Zygomaticus minor: These musclesraise the upper lip and draw it outward. 7, Orbicularis oris.—Only half of this muscleis seen on the plate. It extends completely around the mouth, which its action is to also assists the lips in whistling, blowing and sucking. 8, The buccinator, or trumpet,ers muscle.—It elongates the mouth transversely, and is greatly used in blowing wind-instruments. 9, Depressor labii inferioris, which draws down the under lip, expressingchagrin, disgust. 10,
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectphysiologicalprocess
