Many older individuals develop presbyopia, a condition in which ________
A) the lens loses elasticity and can no longer focus for distant vision
B) the near point of accommodation becomes further away
C) the lens loses elasticity and can no longer focus for distant vision, and visual acuity declines
D) visual acuity declines
Answer: B
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If acetylcholine (ACh) causes inhibition of a postsynaptic neuron, to what type of membrane channel did the ACh bind?
A) mechanically-regulated channel B) voltage-regulated sodium channel C) voltage-regulated calcium channel D) chemically-regulated potassium channel E) chemically-regulated sodium channel
This muscle works as a fixator of the shoulder when you attempt to lift a heavy table with your forearm
A) deltoid B) serratus anterior C) platysma D) external oblique
Water crosses capillary beds from high to low hydrostatic pressure by:
A) transcytosis. B) diffusion. C) filtration. D) facilitated diffusion.
The ________ is a region of dense bone that surrounds and protects the membranous labyrinth
A) bony callus B) bony labyrinth C) membranous callus D) vestibule E) auditory ossicle