XVI 



CONTENTS. 



PAGE 



The Hairs — Continued 



Structure 1391 



The Nails i394 



The Cutaneous Glands i397 



The Sebaceous Glands i397 



The Sweat Glands 1398 



Development of the Skin and its Append- 

 ages 1400 



The Nose. 



The Outer Nose 1404 



Cartilages of the Nose 1404 



Practical Considerations : The External 



Nose 1407 



The Nasal Fossa; 1409 



The Vestibule 1409 



The Septum i4'o 



The Lateral Wall 1410 



The Nasal Mucous Membrane 141 3 



The Olfactory Region 1413 



The Respiratory Region 141 5 



Jacobson's Organ 1417 



Practical Considerations : The Nasal 



Cavities 1417 



The Accessory Air-Spaces 1421 



The Maxillary Sinus 1422 



The Frontal Sinus 1423 



The Ethmoidal Air-Ceils 1424 



The Sphenoidal Sinus 1425 



Practical Considerations : The Accessory 



Air-Spaces 1426 



Development of the Nose 1429 



The Organ of Taste 



The Taste-Buds I433 



Structure 1 434 



Development 1436 



The Eve. 



The Orbit and its Fascite 1436 



Practical Considerations 1438 



The Eyelids and Conjunctiva 1441 



Practical Considerations 1446 



The Eyeball 1447 



Practical Considerations 1448 



The Fibrous Tunic 1449 



The Sclera 1449 



The Cornea 1450 



Practical Considerations J453 



The Vascular Tunic 1454 



The Choroid 1455 



The Ciliary Body 1457 



PAGE 



The Vascular Tunic — Continued 



Practical Considerations 1459 



The Iris i459 



Practical Considerations 146 1 



The Nervous Tunic 1462 



The Retina 1462 



, Practical Considerations 1468 



The Optic Nerve 1469 



Practical Considerations 1470 



The Crystalline Lens 1471 



Practical Considerations I473 



The Vitreous Body i473 



Practical Considerations i474 



The Suspensory Apparatus of the Lens. . 1475 



The Aqueous Humor and its Chamber. . 1476 



Practical Considerations 1476 



The Lachrvmal Apparatus i477 



The Lachrymal Gland i477 



The Lachrymal Passages 1478 



Practical Considerations i479 



Development of the Eye 1480 



The Ear. 



The External Ear 1484 



The Auricle 1484 



The External Auditory Canal 1487 



Practical Considerations 14QO 



The Middle Ear 1492 



The Tympanic Cavity 1492 



The Membrana Tvmpani 1494 



The Auditory Ossicles 1496 



The Mucous'Membrane 1500 



The Eustachian Tube 1501 



The Mastoid Cells 1504 



Pract. Consid.: The Middle Ear 1504 



The Tympanic Cavity I5'^4 



The Tympanic Membrane 1505 



The Eustachian Tube 1507 



The Mastoid Process and Cells 1508 



The Internal Ear 1510 



The Osseous Labyrinth 151 1 



The Vestibule 1511 



The Semicircular Canals 15 12 



The Cochlea 1513 



The Membranous Labyrinth 1514 



The Utricle ISU 



The Saccule T515 



The Semicircular Canals 1515 



The Cochlear Duct 1517 



The Nerves of the Cochlea 1521 



Development of the Ear 1523 



THE GASTRO-PULMONARY SYSTEM. 



General Considerations 1527 



Mucous Membranes 1528 



Structure 1528 



Glands 1531 



Types of Glands 1531 



Simple Tubular Glands 1532 



Compound Tubular Glands .... 1532 



Tubo- Alveolar Glands 1532 



Serous Glands 1534 



Mucous Glands 1534 



Simple Alveolar 1535 



Compound Alveolar Glands. .. . 1535 



Development of Glands 1537 



The Alimentary Canal. 



The Mouth 1538 



The Lips. Cheeks and Vestibule 1538 



The Teeth I542 



Description of Individual Forms. .. . 1543 



Structure of the Teeth 1548 



The Enamel 1548 



The Dentine 1550 



The Cementum . 1552 



The Alveolar Periosteum 1553 



Implantation and Relations of the 



Teeth i554 



Development of the Teeth 1556 



. First and Second Dentition 1564 



The Gums 1567 



The Palate 1567 



The Hard Palate 1567 



The Soft Palate 1568 



