Which of these sensory pathways carries afferent impulses that DON'T produce perceptions?
spinothalamic pathway
fasciculus gracilis
spinocerebellar pathway
posterior column pathway
spinocerebellar pathway
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In chemical notation, the symbol Ca2+ means
A) two calcium atoms. B) a calcium ion that has lost two electrons. C) a calcium ion that has gained two protons. D) a calcium ion that has gained two electrons. E) a calcium ion that has lost two protons.
The posterior, inferior projection from vertebrae is the
A. intervertebral disk. B. vertebral foramen. C. lamina. D. intervertebral foramen. E. spinous process.
Which chambers in the heart pump blood?
A. Auricles B. Atria C. Ventricles D. None of these are correct.
Which of the following is not true of the atria?
a. receive blood from arteries returning to the heart b. are called receiving chambers c. have thinner walls than ventricles d. all of the above are true