Which specific event triggers the release of calcium from the sarcoplasmic reticulum?
A. Calcium binds to troponin.
B. Myosin binds to actin.
C. An electrical signal travels down the transverse tubules.
D. Acetylcholine is released from receptors.
Answer: C
You might also like to view...
Nerve tracts or fasciculi make up the
A) central canal. B) posterior gray horns. C) gray commissures. D) white columns. E) anterior gray horns.
The space between the iris and the cornea is the
A) anterior chamber. B) posterior chamber. C) pupil. D) aqueous humor. E) vitreous body.
Effect of pH on % Hb saturation is called
a. acidity effect. b. Bohr effect. c. Root effect. d. CO2 effect. e. none of these.
In Gratz v. Bollinger, why did the U.S. Supreme Court rule against the University of Michigan in its attempt to diversify the undergraduate student body?
A. the two-track system of evaluation of applicants was unconstitutional B. the evaluation of the applicant pool should be based strictly on the basis of academic credentials C. the assignment of points for race differentially harmed some applicants D. the population of the State of Michigan was not so racially diverse that the University of Michigan should consider race in its selection