Which ion is released from the sarcoplasmic reticulum to allow muscle contraction?
A. Ca2+
B. K+
C. Na+
D. Mg2+
Answer: A
You might also like to view...
Max is bitten by a rattlesnake while on a camping trip. His friends immediately apply ice packs to the bitten area to slow the spread of the protein-based toxin; they then rush him to an emergency facility. What treatment would be given and why?
What will be an ideal response
Which of the following is an example of a glucose sparing effect of cortisol?
a. inhibition of ACTH release. b. stimulation of gluconeogenesis by the liver c. stimulation of lipolysis d. stimulation of glycogen breakdown e. stimulation of protein synthesis.
Which of the following is NOT an effect of aging with the cardiovascular system?
A. Excessive cardiac output B. Increased varicose veins C. Increased atherosclerosis D. Increased incidence of coronary artery disease
At the optic chiasm,
A. all axons from each optic nerve cross to the opposite side of the brain. B. ganglion cell axons from the medial region of each retina cross to the opposite side of the brain. C. none of the axons actually cross to the opposite side of the brain. D. ganglion cell axons from the lateral region of each retina cross to the opposite side of the brain.