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.
1 Sympathetic nerves from the internal carotid plexus â innervate the dilator pupillae muscle. 2  Sensory fibres from the nasociliary nerve (a branch of the ophthalmic division of the trigeminal nerve) â innervate the cornea, ciliary body and iris.ote: Most ganglia are associated with some sensory and sympathetic nerves â these do not synapse in the ganglia, they merely travel through it. Â© 2015 TeachMeAnatomy.com [CC-BY-NC-ND 4.0]. Fig 1.0 â Overview of the parasympathetic supply to the head and neck.