Any of the six small muscles that control movement of the eyeball within the socket.
hog:0000319
hog:0001127 medial rectus extraocular musclehog:0001128 dorsal rectus extraocular musclehog:0001129 lateral rectus extraocular musclehog:0001130 ventral rectus extraocular musclehog:0001131 dorsal oblique extraocular musclehog:0001132 ventral oblique extraocular muscleBFO:0000050 part of
hog:0000275
tao:0000511