Valves are said to be ________ when they do not close properly and blood leaks through them.
A. stenotic
B. incompetent
C. weak
D. flappy
Answer: B
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What is the function of ATP molecules in living cells?
A. They act as coenzymes so that fats can be synthesized. B. They form a genetic material. C. They capture energy from the oxidation of fuels in their high-energy phosphate bonds, and the energy is used in various cell processes. D. They are an integral part of the cell membrane, important in transporting water molecules.
Horses are capable of sensing fear or nervousness
Indicate whether the statement is true or false
The _____ phase of the action potential in _____ cells is due to a _____
a. rising, autorhythmic cells, rapid Ca2+ influx b. rising, contractile cells, rapid Na+ influx c. plateau, contractile cells, slow Ca2+ influx d. All of the above correctly complete the sentence. e. Only b and c correctly complete the sentence.
Chest pain due to lack of blood to the heart is called ________ pectoris.
Fill in the blank(s) with the appropriate word(s).