What is role strain in sociology? A: Role strain in sociology is when a particular role a person needs to fulfill is strained due to excessive obligations or multiple demands on time, energy or available resources.
Short posterior ciliary arteries: Branch from the ophthalmic artery and pierce the sclera at the edge of the optic nerve; they supply the choroid and the rods and cones of the retina. Long posterior ciliary arteries: Branch from the ophthalmic artery and pierce the sclera to supply the ciliary body and iris.
Sympathetic innervation also has been seen in the short ciliary nerves by some authors, although there appears to be some variability in this pathway. Within the sclera, the sympathetic nerves reach the iris dilator muscle, the ciliary body, and the trabecular meshwork anteriorly.he Oculomotor Nerve or Cranial Nerve III. The oculomotor nerve provides motor innervation to the levator palpebrae superioris, the superior, medial and inferior rectus muscles, and the inferior oblique muscle. All these muscles insert directly onto the globe and move the eye within the orbit.