The sacral region of the spine is fused to which of the following bones?
A. the ilium
B. the ischium
C. the pubis
D. all of the above
D. all of the above
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When there is a resistance to the movement produced by a given limb muscle,
A) the muscle involved in the movement immediately shortens when stimulated. B) there is a decrease in the amount of force generated by extrafusal muscle fibers. C) muscle tone is increased and more motor units are recruited to the contraction. D) gamma motor neurons are inhibited by higher brain centers. E) intrafusal fibers receive fewer action potentials from the gamma motor neurons.
____________________ diffusion allows materials to pass through a carrier protein without the expenditure of energy
Fill in the blank(s) with correct word
If all else remains equal, an increase in the difference between atmospheric and alveolar pressure results in an increase in airflow.
Answer the following statement true (T) or false (F)
Fusion of the male and female pronuclei forms the
A. blastocyst. B. morula. C. zygote. D. gastrula. E. trophoblast.