CONTENTS. 



EMBRYOLOGY. 



The Animal Cell. 



Cytoplasm 



Nucleus 



Reproduction of Cells 06 



Prophase 



Metaphase ... ..... 36 



Anaphase . 



Telophase . 



The Ovum. 



Yolk 39 



Germinal Vesicle 40 



Coverings of the Ovum 40 



Maturation of the Ovum 40 



The Spermatozoon . 

 Fertilization of the Ovum 

 Segmentation of the Fertilized Ovum. 



The Primitive Streak; Formation of the 



Mesoderm 



Ectoderm 



Entoderm 



Mesoderm 49 



The Neural Groove and Tube . . 50 

 The Notochord . . . 52 



The Primitive Segments . . 52 



Separation of the Embryo . . 53 



The Yolk-sac . 54 



Development of the Fetal Membranes and Placenta. 



The Allantois 



The Amnion 



The Umbilical Cord and Body-stalk . 



54 

 56 

 57 



r _ 58 



The Decidua 59 



Implantation or Imbedding of the Ovum 



The Chorion 



The Placenta . . . . . 



Fetal Portion .... 



Maternal Portion . 



Separation of the Placenta 



60 

 62 

 62 

 63 

 64 



The Branchial Region. 



The Branchial or Visceral Arches and Pharyn- 



geal Pouches 65 



The Nose and Face 67 



The Limbs 71 



Development of the Body Cavities . . 72 



The Form of the Embryo at Different Stages 



of its Growth . ... 74 



OSTEOLOGY. 



Long Bones . 

 Short Bones . 

 Flat Bones . 

 Irregular Bones . 

 Surfaces of Bones 



DEVELOPMENT OF THE SKELETON. 



The Skeleton . . . . 

 The Vertebral Column 

 The Ribs . . . . 

 The Sternum 

 The Skull 



BONE. 



Structure and Physical Properties 



Periosteum 



Marrow 



Vessels and Nerves of Bone .... 



Minute Anatomy 



Chemical Composition 



Ossification 



Intramembranous Ossification 

 Intercartilaginous Ossification 



THE VERTEBRAL COLUMN. 



General Characteristics of a Vertebra. 



The Cervical Vertebrae 



The First Cervical Vertebra . 

 The Second Cervical Vertebra . 

 The Seventh Cervical Vertebra . 



79 

 79 

 79 

 80 

 80 



97 



99 



100 



101 



The Thoracic Vertebra 



The First Thoracic Vertebra 

 The Ninth Thoracic Vertebra 

 The Tenth Thoracic Vertebra . 

 The Eleventh Thoracic Vertebra 

 The Twelfth Thoracic Vertebra . . 



The Lumbar Vertebrae 



The Fifth Lumbar Vertebra . . . 



The Sacral and Coccygeal Vertebra? . 



The Sacrum 



The Coccyx 



Ossification of the Vertebral Column 



The Vertebral Column as a Whole. 



Curves 

 Surfaces . 

 Vertebral Canal 



THE THORAX. 



Boundaries 



The Sternum 



Manubrium 



Body 



Xiphoid Process 



The Ribs . . 



Common Characteristics of the Ribs 



Peculiar Ribs 



First Rib 



Second Rib 



Tenth Rib 



Eleventh and Twelfth Ribs 



The Costal Cartilages 



(9) 



102 

 104 

 104 

 104 

 104 

 104 

 104 

 106 

 106 

 106 

 111 

 111 



114 

 114 

 116 



117 

 119 

 120 

 120 

 121 

 123 

 123 

 125 

 125 

 125 

 126 

 126 

 127 





