Which of the following contains descending axon bundles carrying voluntary motor commands from the primary motor cortex?
A. Cerebral peduncle
B. Cerebral aqueduct
C. Substantia nigra
D. Cerebellar peduncle
Answer: A
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T Lymphocytes are produced and stored in all of the following except
A) the thymus. B) lymphatic nodules. C) lymph node organs. D) the spleen. E) the brain.
In which of the following systems of measurement are units of the same variable related to each other by factors of ten?
A. the English system B. the metric system C. both A and B D. neither A nor B
Irritation of the phrenic nerve may cause diaphragm spasms called hiccups
Indicate whether the statement is true or false
A serous membrane contains a superficial layer of epithelial tissue and a deeper layer of connective tissue. Thus, serous membranes are classified as:
A) tissues. B) amitotic. C) organs. D) avascular.