Convergence a. requires contraction of the medial rectus muscles of both eyes. b. is needed for near vision. c. involves transmission of impulses along the abducens nerves. d. can promote eyestrain....

Convergence

a. requires contraction of the medial rectus muscles of both eyes.

b. is needed for near vision.

c. involves transmission of impulses along the abducens nerves.

d. can promote eyestrain.

Which of the following are paired incorrectly?

a. Tympanic cavity—ossicles

b. Round window—stapes

c. Tympanic membrane—hammer

d. Oval window—incus