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.
Muscles of the eyes. The are six muscles of the eyes responsible for movement of the eye. These muscles function in Agonist and Antagonist pairs enabling us to move our eyeballs in the cardinal directions, up, down, left and right. There are six muscles which are responsible for controlling the movement of the eyeballs.
Eye Muscle Function. The movement of each eye is controlled by four rectus and two oblique eye muscles. 1  The lateral rectus muscle moves the eye outwards. 2  The superior rectus muscle moves the eye upwards and, to a lesser extent, rotates the top of the eye towards the nose.he movement of each eye is controlled by four rectus and two oblique eye muscles. 1  The lateral rectus muscle moves the eye outwards. 2  The superior rectus muscle moves the eye upwards and, to a lesser extent, rotates the top of the eye towards the nose.