The name given to the repeating functional units that cause striations in a skeletal muscle myofibril is "sarcomere."
Indicate whether the statement is true or false.
TRUE
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During _________ of the cell cycle, the chromatids are pulled to opposite sides of the cell.
Fill in the blank(s) with the appropriate word(s).
Action potentials are able to travel over long distances without decaying because
A) The axons are perfectly insulated, so no current is able to leak out. B) The action potential uses completely different ions than graded potentials. C) Once the electrical signal has passed threshold, it is impossible for the signal to decay. D) One action potential generates the next one in an adjacent area of membrane.
The pons and cerebellum arise from which secondary embryonic vesicle?
A. Telencephalon B. Diencephalon C. Mesencephalon D. Metencephalon E. Myelencephalon
What does structure "D" represent on the bone diagram?
A. epiphysis B. articular cartilage C. epiphyseal lines D. diaphysis E. cancellous bone