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.
The nerves of the breast come from the anterior and lateral cutaneous branches of the 4th to 6th intercostal nerves. They supply sensory fibers to the skin and sympathetic fibers to the blood vessels and smooth muscles of the nipple and skin.