The figure illustrates a lateral view of the right eyeball. What does "A" represent?
A. Superior oblique
B. Inferior oblique
C. Superior rectus
D. Inferior rectus
E. Lateral rectus
Answer: D
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Embryonic stem cells are derived from the
A. outer cell mass of the morula. B. middle layer of the zygote. C. inner cell mass of the blastocyst. D. trophoblast.
If an increase in extracellular potassium would depolarize a neuron, what would be the effect of the increased potassium?
A) It would decrease the flow of sodium out of the cell. B) It would increase the flow of sodium out of the cell. C) It would change the membrane potential to a more negative value. D) It would change the membrane potential to a less negative value.
How is alveolar gas exchange affected by emphysema and pneumonia?
What will be an ideal response?
The respiratory system contains a total of five ________
A) tracheal cartilages B) lobes C) choanae D) laryngeal cartilages E) segmental bronchi