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

Anatomy & Physiology

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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.

Anatomy & Physiology

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.

Anatomy & Physiology

Horses are capable of sensing fear or nervousness

Indicate whether the statement is true or false

Anatomy & Physiology

Chest pain due to lack of blood to the heart is called ________ pectoris.

Fill in the blank(s) with the appropriate word(s).

Anatomy & Physiology