Iris dilator muscle the superior orbital fissure. From there, they travel with the nasociliary nerve and then the long ciliary nerve. They then pierce the sclera, travel between sclera and choroid to reach the iris dilator muscle. They will also pass through ciliary ganglion and travel in short ciliary nerves to reach the iris dilator muscle. The pupillary dilator acts to increase the size of the pupil to allow more light to enter the eye. It works in opposition to the pupillary constrictor. Pupil dilation occurs when there is insufficient light for the normal function of the eye, and during heightened sympathetic activity,
1st Arkansas Light Artillery Battery (Colored) 1st Arkansas Light Artillery Battery (Colored) The 1st Arkansas Light Artillery Battery (African Descent) was a artillery battery that served in the Union Army during the American Civil War. The regiment was composed of African American enlisted men commanded by white officers and was authorized by the Bureau of Colored Troops which was created by the United States War Department on May 22, 1863. The battery was organized at Pine Bluff, Arkansas, on June 4, 1864. Then unit was re-designated as Battery "H", 2nd U.S. Colored Light Artillery on December 13, 1864. Mustered out on August 10, 1865. The battery