MUSCLES AND PHENOMENA OF CONTRACTION. 117 



along its entire length. These capillaries, together with the 



Fig. 61. SHOWING THE MANNER IN WHICH THE CAPILLARIKS ARK SUPPLIED TO THE 



VOLUNTARY FIBRES. (E- A. S.) 



nerves, are carried by the connective tissue perimysium , 

 which wraps more or less completely each individual fibre. 



Nerves. Each muscle fibre is connected with a nerve. 

 The nerve penetrates the sarcolemma and then has its axis 



Fig. 62. MUSCLE FIBRES FROM A LIZARD TO SHOW THE MANNER OF TERMINATION OF 



THE MOTOR NERVE IN THE SO-CALLED "END ORGANS." (After KuhllC.) 



a, side view; b, surface view of cud organ. 



