The right lung has ______ lobes; the left lung has ______ lobes
A) superior, middle, and inferior; superior and inferior
B) superior, middle, and inferior; anterior and posterior
C) superior and inferior; superior; middle, and inferior
D) anterior, posterior, and lateral; superior and inferior
A
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The processes that occur in the pre-embryonic period are
A) cleavage and implantation. B) cleavage and placentation. C) implantation and placentation. D) implantation and embryogenesis. E) placentation and embryogenesis.
A synonym for chorea is:
A) myoclonus B) hypnosis C) ptosis D) epilepsy
When an individual sees pure green, only the green cones are stimulated
Indicate whether the statement is true or false
Which of these events must occur first to trigger the skeletal muscle to generate an action potential and contract?
A) Sodium ions rush into the cell. B) Acetylcholine (ACh) binds to receptors on the sarcolemma and allows passage of sodium ions into the cell. C) Potassium ions diffuse out of the muscle cell. D) The sodium-potassium pump restores sodium and potassium back to their initial positions. E) Acetylcholinesterase (AchE) breaks down acetylcholine (ACh).