Vasco Nunez de Balboa went on to discover new lands and was appointed governor of different regions in the Americas. One of his biggest achievements was that of crossing over the southern part of the continent by crossing the present day Isthmus of Panama.
extraocular m's the six voluntary muscles that move the eyeball: superior, inferior, middle, and lateral recti, and superior and inferior oblique muscles. See appendix 3-4. extrinsic muscle one that originates in another part than that of its insertion, as those originating outside the eye, which move the eyeball. fixation m's (fixator m's) accessory muscles that serve to steady a part. gluteal m's three muscles, the greatest, middle, and least, that extend, abduct, and rotate the thigh.
The extraocular or extrinsic eye muscles, considering their relatively small size, are incredibly strong and efficient. There are the six extraocular muscles, which act to turn or rotate an eye about its vertical, horizontal, and antero-posterior axes:n image of the object is focused upon the macula of each eye, and the brain merges the two retinal images into one. Sometimes, however, due to some type of extraocular muscle imbalance, one eye is not aligned with the other eye, resulting in a strabismus, also called a heterotropia or simply a tropia.