15. The Special Senses

The aqueous humor is the fluid that fills the anterior portion of the eye between the lens and the cornea. This fluid is constantly regenerated and drains out through the scleral venous sinus. If the scleral venous sinus is blocked, aqueous humor can accumulate, putting pressure on the structures of the eye. Which structure of the vascular layer is responsible for producing the aqueous humor?

Which structure(s) of the middle layer contains muscles?

Which of the following would increase the total amount of light coming into the eye?

True or False: if false, choose the answer that corrects the statement.

Pupils enlarge when the pupillary dilators contract after receiving stimuli from the parasympathetic nervous system.