IV 



CONTENTS OF PART II. 



PAGE 



The marrow 265 



Blood-vessels of bone .... 267 



Lymphatics 267 



Nerves 268 



FORMATION AND GROWTH OF BOM; . . 268 

 Intramembranous ossification . . 268 

 Ossification in cartilage . . . . 272 

 Growth and absorption .... 280 

 Regeneration. . . . . . . 282 



Recent literature 282 



MUSCULAR TISSUE 285 



Structure of cross-striated or skeletal 



muscles 



Fasciculi ...... 



Fibres, their figure and measurement . 

 Structure of the fibres, sarcolemma . 

 Muscular substance .... 



Structure of the wing-muscles of insects 291 

 Comparison of the ordinary muscles of 

 insects and vertebrates with the wing 

 muscles of insects . . . . 



Effect of the sarcoplasmic accumula- 

 tions upon the cross-striation of the 

 ordinary muscles .... 



Changes in contraction . . . . 



Appearances of muscle under polarised 



light 



Historical . . . . 



Muscle-nuclei 



Variations of structure in different 



muscles, correlated with differences 



of function ..... 



Mode of attachment of muscular fibres ; 



ending of muscle in tendon 

 Blood-vessels. . , . . 



Lymphatics 



Nerves . ... . . . 



Development of voluntary muscular tissue 300 

 Growth . . 

 Regeneration .... 



Plain or unstriped muscular tissue . 

 Distribution .... 



Development .... 



Cardiac muscular tissue 



Recent literature .... 



NERVOUS SYSTEM .... 



Nerve-fibres . . . . . ' 



Medullated nerve-fibres 



Structure of medullated nerve-fibres 



285 

 286 

 286 

 287 

 287 



293 



293 

 294 



295 

 296 

 298 



299 



299 

 300 



300 



302 

 302 

 303 

 303 

 304 

 305 

 307 

 308 

 308 

 309 



Axis-cylinder 310 



Medullary sheath j 1 1 



Nodes and internodes of Ranvier . 311 

 Medullary segments . . . . 313 

 Rod-like and reticular structures in the 



medullary sheath . . . -313 

 Sheath of Schwann, primitive sheath or 



neurolemma ..... 

 Pale or non-medullated fibres ; fibres 



of Remak ..... 315 

 Nerve-cell . . . . . . 316 



- 317 

 the nerve- 



315 



Structure . 

 Sustentacular tissue of 



centres ; neuroglia . 

 Construction of the nerves and nerve 



roots 



Vessels and lymphatics 

 Course of the nerve-fibres in the nerve 



trunks . 



Origins or roots of the nerves 

 Construction of the ganglia 



322 



324 

 326 



326 

 327 

 331 



PAGE 



Situation 331 



Termination or peripheral distribution of 



nerves 333 



Termination of sensory nerves . . . 334 



Tactile cells 335 



Tactile corpuscles or touch-bodies . . 335 



End -bulbs 337 



Tactile end-organs of birds . . . 340 

 Corpuscles of Herbst .... 340 



Corpuscles of Vater or Paciuian bodies 341 

 Other modes of ending of sensory 

 nerves ...... 341 



Nerve-endings m tendons . . . 347 



Termination of motor nerves . . . 348 



In the involuntary muscles . . . 348 



In the cardiac muscular tissue . . 348 



Nerves of voluntary muscles . . . 349 



Development of the nerves . . . 352 



Degeneration and regeneration . . 353 



Recent literature . . . . 356 



BLOOD-VESSELS ...... 360 



Arteries ...... 360 



Mode of distribution . . . . 360 



Structure . . . . . .361 



Internal coat ...... 362 



Middle coat 363 



External coat ... . . 364 

 Vessels and nerves of arteries . . 365 



Veins 366 



Mode of distribution .... 366 



Structure . . . . . . 366 



Internal coat ..... 366 



Middle coat . . . . . . 366 



External coat ..... 367 



Valves . 367 



Smaller arteries and veins and capillaries 368 



Structure of the capillaries . . . 370 



Structure of the small arteries and veins 370 



Development of the blood-vessels . . 372 



Recent literature 375 



LYMPHATIC SYSTEM . . . . . 376 

 Distribution of lymphatic; vessels . . 376 

 Origin . . . . . . . 376 



Structure 378 



Valves 378 



Relation of the lymphatics of origin to 

 the cells and cell-spaces of the connec- 

 tive tissue ...... 379 



Termination of lymphatics . . . 381 



Lymphatic hearts 381 



Development of lymphatic vessels . . 382 

 Lymphatic glands ..... 382 



Other organs composed of lymphoid 

 tissue . . . . . . 387 



Serous membranes ... . . 388 



Form and arrangement .... 388 



Structure and properties . . . . 389 



Blood vessels, lymphatics and nerves . 391 

 Synovial membranes . .... 392 



Articular . . . . . . 392 



Vaginal . . . . . . . 392 



Vesicular or bursal .... 393 



Structure . 393 



Vessels and nerves .... 394 



Development . . . ... 395 



Recent literature of lymphatic system . 395 



SECRETING GLANDS 396 



Changes in the cells during activity . 396 

 Modifications in form of the secreting 

 surface 398 



