Which of the following phrases would apply to cardiac muscle cells?
A. are organized in parallel columns or bundles
B. contain actin but no myosin
C. develop a significant oxygen debt during systole
D. are multinucleated like skeletal muscle cells
E. possess special cell-to-cell contacts called intercalated discs
E
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The primary reason that extracellular fluid volume must be closely regulated is to
a. prevent changes in ICF osmolarity b. maintain adequate urine formation c. maintain proper blood pressure d. prevent cells from swelling or shrinking e. allow changes in ICF volume
Which of the following represents the correct pathway for sperm during ejaculation?
A. Ductus deferens - ejaculatory ducts - rete testes - efferent ductules - epididymis - seminiferous tubules - prostatic urethra - penile urethra - outside the body B. Rete testes - efferent ductules - epididymis - seminiferous tubules - ductus deferens - ejaculatory ducts - prostatic urethra - penile urethra - outside the body C. Seminiferous tubules - ductus deferens - ejaculatory ducts - rete testes - efferent ductules - epididymis - prostatic urethra - penile urethra - outside the body D. Seminiferous tubules - rete testes - efferent ductules - epididymis - ductus deferens - ejaculatory ducts - prostatic urethra - penile urethra - outside the body
The work of Greek scientist ________, who was the first to publicly dissect and compare human and animal bodies, greatly influenced Galen, the "Prince of Physicians."
Fill in the blank(s) with the appropriate word(s).
Upon stimulation, sympathetic preganglionic fibers release acetylcholine (ACh) at synapses with ________ neurons.
Fill in the blank(s) with the appropriate word(s).