Purkinje fibers in cardiac muscle

As seen here, Purkinje fibers (cardiac muscle fibers specialized for electrical conduction) are somewhat larger and have paler cytoplasm (with relatively fewer myofibrils) than ordinary cardiac muscle.

Click on thumbnail for an image of ordinary cardiac muscle.

 

 

Comments and questions: dgking@siu.edu

SIUC / School of Medicine / Anatomy / David King

http://www.siumed.edu/~dking2/crr/RN022b.htm
Last updated:  5 September 2003 / dgk