Which of the following statements is true of both bone and cartilage?
a. They both contain more intercellular matrix than cells.
b. Both bone and cartilage cells are supplied with food and oxygen through canaliculi.
c. Both bone and cartilage cells are located in lacunae.
d. Both A and C are true.
d. Both A and C are true.
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Which of these is not part of a cell?
A) The plasma membrane B) The nucleus C) The cytoplasm D) All of the above are part of the cell.
The projections on the superior surface of the tongue, some of which house taste buds, are the
A. tonsils. B. rugae. C. glossal spines. D. papillae. E. cilia.
Which of the following statements is NOT true?
a. Rigor mortis occurs as a result of a rise in intracellular calcium concentrations. b. In skeletal muscle a single action potential lasts about 5-10 msec. c. In skeletal muscle the relaxation time lasts slightly longer than the contractile time. d. In skeletal muscle the contractile response ceases when the lateral sacs take up Ca2+. e. A spring can move much faster than a muscle can contract.
The difference between the systolic and diastolic pressures is the
A) capillary pressure. B) pulse pressure. C) arterial pressure. D) venous pressure. E) hydrostatic pressure.