Which components of blood do NOT perform defensive functions?
A. Platelets
B. Red blood cells
C. Antibodies
D. White blood cells
Answer: B
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List these events in the correct order for CSF flow in the CNS
a: CSF flows into the arachnoid villi b: CSF enters the blood c: CSF flows through the cerebral aqueduct to the 4th ventricle d: CSF flows into the subarachnoid space e: CSF is produced by the choroid plexus A. a, b, c, e, d B. e, a, b, c, d C. c, d, a, e, b D. e, c, d, a, b E. e, d, a, b, c
What is the main function of the cones of the eye?
A) color vision B) depth perception C) vision in dim light D) accommodation for near vision
The components of ribosomes are synthesized by
A) the endoplasmic reticulum. B) Golgi complexes. C) lysosomes. D) mitochondria. E) nucleoli.
Neural stem cells in the CNS
A. have no known function. B. can only form glial cells. C. can form new neurons throughout the CNS. D. can form new neurons in only certain portions of the CNS such as the hippocampus. E. can migrate to the PNS as needed.