Serious arrhythmias that reduce the pumping efficiency of the heart may indicate __________.
a. damage to the myocardium
b. variations in the ionic composition of the extracellular fluids
c. injury to the SA and AV nodes
d. damage to the myocardium, injury to the SA and AV nodes, or variations in the ionic composition of the extracellular fluids
Answer: d. damage to the myocardium, injury to the SA and AV nodes, or variations in the ionic composition of the extracellular fluids
You might also like to view...
During the absorptive state of metabolism, amino acids
A. are used for protein synthesis in most body cells. B. may be converted to ketones in the liver. C. are used for glycogen synthesis in the liver. D. are burned as fuel in muscles, creating urea as a waste product. E. are mobilized from muscle and other tissues faster than they are taken up by those tissues.
The blind spot of the eye is caused by ________
A) the macula lutea interrupts the nerve pathway B) there are no photoreceptors where the optic nerve leaves the eye C) an absents of cones in the foveae D) more rods than cones within the retina
Which of the following is the most accurate statement regarding red blood cells?
a. An excess is called anemia. b. They carry oxygen to tissues. c. They contain a nucleus. d. They live for years.
You can palpate the tibial tuberosity on the anterior side of the leg.
Answer the following statement true (T) or false (F)