. Guide leaflet. G A GENERAL PROGRESS FROM FISH TO MAN. i. Ancient Shark (ClaJose-•he)\ 2. Lobe-finned Fish (Eusthenopteron); 3. Earliest Amphibian (Eogyri/ms); 4. Stem Reptile iSeymouria)\Pro-Mammal or Cynodont (Cynogiiathus); 6. Common Opossum (Didelphys); 7. Recent Lemur; 8. Old WorldDnkey {Erythrocebus); 9. Siamang (Symphalangus); 10. Young Gorilla; 11. Australian Bushman; 12. Greek Athlete Thus the face has undergone great changes in adaptation to successivelydifferent modes of life; but, from first to last, the mouth, which is the gate-way to the stomach, has been assisted by the nose, t
. Guide leaflet. G A GENERAL PROGRESS FROM FISH TO MAN. i. Ancient Shark (ClaJose-•he)\ 2. Lobe-finned Fish (Eusthenopteron); 3. Earliest Amphibian (Eogyri/ms); 4. Stem Reptile iSeymouria)\Pro-Mammal or Cynodont (Cynogiiathus); 6. Common Opossum (Didelphys); 7. Recent Lemur; 8. Old WorldDnkey {Erythrocebus); 9. Siamang (Symphalangus); 10. Young Gorilla; 11. Australian Bushman; 12. Greek Athlete Thus the face has undergone great changes in adaptation to successivelydifferent modes of life; but, from first to last, the mouth, which is the gate-way to the stomach, has been assisted by the nose, the eyes, and the as our brains have improved, our eyes and ears have told us moreand more about the world of nature and of men. THE FACIAL MUSCLES FROM FISH TO MAN(case VI) The human face owes to its facial muscles the abiHty to smile or to frownand to express such emotions as joy, fear, dislike and their opposites. Thefacial muscles also take part in other movements of the lips, mouth, nostrils, 1:433. Courtesy G. P. Puttutms SortT Fig. 21. ORIGIN OF THE FACIAL MUSCLES OF MAN. A. Primitive reptilewith continuous bonv mask covering skull. The mask was covered with thick skinwithout muscles, as in the alligator. (After AVilliston.) B. Modern reptile with anopen or fenestrated skull covered with thick, non-muscular skin. (From Fiirbringer,modified from Ruge.) C. Primitive mammal in which the sphincter colli system hasgrown forward over the face. D. Gorilla. E. Man. (C, D and E after Ruge). FromOur Face from Fish to Man bv William K. Gregory. ears and scalp. In mammals, including man, thev extend over the face andaround the scalp, ears and neck, but in the vertebrates below the mam-mals thev are confined to the neck and throat. The series of models (Case \^I) in low relief illustrates some of the stepsl)\- \v hich the complex conditions in mammals are believed to havx arisenout of the more simple conditions in mans less progressive relatives. Themodels (except No. 3) ar
Size: 1552px × 1609px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectnatural, bookyear1901
