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.
There are six muscles (per eye) responsible for generating all movements of the eyes in their bony orbits: 1  Lateral Rectus (LR) 2  Medial Rectus (MR) 3  Superior Rectus (SR)  Inferior Rectus 1  (IR) Superior Oblique 2  (SO) Inferior Oblique  (IO)