Which of the following is not secreted by the adrenal medulla in response to sympathetic stimulation?
A. Dopamine
B. Epinephrine
C. Acetylcholine
D. Norepinephrine
E. All of the choices are secreted in response to sympathetic stimulation.
Answer: C
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The elasticity of the lens decreases with age. This leads to which of the following?
A) less light getting to the retina and diminished visual acuity B) lowered accommodation of the pupillary reflex and blurry vision C) a clouding of the lenses know as a cataract D) less accommodation of the lenses and difficulty focusing on nearby objects
The ____ is the only route in which arteries carry less oxygen than veins.
What will be an ideal response?
Which of the following is an example of incomplete dominance?
A. Major thalassemia B. Beta thalassemia C. Polymorphism D. Type AB blood type E. Minor thalassemia
What muscle forms the lips?
A. buccinator muscle B. orbicularis oculi muscle C. orbicularis oris muscle D. labial frenulum muscle