Upper motor neurons can originate in:
a. precentral gyrus
b. cranial nerves 3,4,5,6,7,9,11,12
c. the anterior grey horn
d. all of the above
Answer: a. precentral gyrus
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Most people have 24 ribs.
Answer the following statement true (T) or false (F)
The first paranasal sinuses to develop are the ____________________.
Fill in the blank(s) with the appropriate word(s).
Is genetic diversity due entirely to inherited genes on the sex chromosomes?
A) Yes, because the female has two X chromosomes and the male has only one X chromosome. B) Yes, because genetic diversity is due to the Y influence on the autosomes. C) Yes, because the male has a Y chromosome. D) No, because genetic diversity has nothing to do with the sex chromosomes but is due to crossing-over of chromosomes, independent assortment of chromosomes, and segregation of chromosomes.
The average length of the epididymis is
A) 1 meter. B) 6 meters. C) 3 meters. D) 9 meters.