3>^ 



ELEMENTS OF MAMMALIAN ANATOMY 



for the attachment of muscles, and the renewal of bony tissue 

 in case of injury. The long bones contain a cavity, the medul- 

 lary cavity, filled with marrow (Fig. 13). This cavity is lined 

 with cndosicum, a membrane similar to the periosteum. 









11 





,r 



^id''') 



V'-^ 







\ ^ 



- -"-y- ', 



'^m-^m 



if.Trrfag ja Lr^nt-Sibhr 



Fig. 15. — Part of a Cross-section of a Decalcified Phalanx from an 



Adult. 



I, Resorption line; 2, Volkmann's canals; 3, periosteum; 4, periosteal lamellae; 

 5, perforating fibers; 6, Haversian lamella); 7, Haversian canal; 8, interstitial 

 lamellae; 9, endosteal lamellae; 10, marrow. (Lewis and Slohr.) 



The shaft of the long bone is composed mainly of compact 

 bony tissue through which extend longitudinally intercom- 

 municating microscopic channels. Haversian canals, for the 

 conveyance of blood-vessels, nerves and lymphatics. 



