The cribriform foramina, through which the fibers of cranial nerve I pass, are located in the ________ bone on the floor of the skull
A) temporal B) frontal C) ethmoid D) sphenoid
Answer: C
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Structures that contribute to the maintenance of balance and equilibrium include the ________.
A. vestibular apparatus B. eyes C. proprioceptors from joints and muscles D. All of the choices are correct.
What are blood islands, and from which cells do they form?
A) Blood islands are primitive capillary networks formed from embryonic cells scattered within the yolk sac. B) Blood islands are primitive arteries that are formed from hemangioblasts. C) Blood islands are primitive veins that are formed from hemangioblasts. D) Blood islands are aggregations of embryonic cells scattered within the yolk sac that form blood vessels and blood cells. E) Blood islands are collections of blood cells that are formed from embryonic hematopoietic stem cells.
Carbonic anhydrase catalyzes a reaction that combines which of the following?
A. CO2 and O2 B. H2O and CO C. H2O and CO2 D. H2O and O2 E. H+ and HCO3-
Contrast the length-tension relationship for cardiac muscle to that which is found in skeletal muscle. In other words, for each type of muscle, what is the optimal length? How is such an arrangement adaptive to cardiac muscle?
What will be an ideal response?