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.
Making the world better, one answer at a time. The ciliated cells has tiny hairs on it, called cilia, which sweep mucus, which is produced by goblet cells, up the airway. The mucus traps dirt particles and stop them from entering the lungs and causing infection.