Select your answer:
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Skeletal System Histology, Bone Repair Joints › View_______ helps maintain strong bones
A. Vitamin D
B. Magnesium
C. supplements
D. Iron
Neuroanatomy › View
Nerve impulses travel from the retina, down the optic nerve, to the visual cortex of the central nervous system. This can be described as a ________ system.
A. Efferent
B. Peripheral
C. Afferent
D. Enteric
E. None of the above