Which statement about the microscopic anatomy of skeletal muscle fibers is true?
A) muscle fibers are continuous from tendon to tendon
B) Cross striations result from the lateral alignment of thick and thin filaments
C) Each fiber has many nuclei
D) Tubular extensions of the sarcolemma penetrate the fiber transversely
E) All of the answer are correct
E) All of the answer are correct
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A researcher wants to study the different electrolytes released by the human body. Which of the following sources should they use to gather the largest quantities of electrolyte output?
A. Respiratory perspiration B. Feces C. Urine D. Sweat
Nerve cells known as ____ transmit nerve impulses in the form of electrochemical changes
a. neurons b. microglia c. oligodendrocytes d. astrocytes
Which of the following issues output to the VRG to adjust the respiratory rhythm?
A. NRG B. DRG C. SRG D. PRG
Which is a characteristic of hydrophobic hormones?
A. They mostly bind to receptor proteins in the surface membrane of target cells. B. They are generally polar molecules. C. They usually have very rapid effects on target cells. D. Their mechanism of action generally involves altering protein synthesis. E. They are highly soluble in blood plasma.