Compare a stenotic and insufficient valve
What will be an ideal response?
A stenotic valve is a stiff, narrow valve that does not open completely. Blood must be forced through the narrow opening at higher than normal pressures. An insufficient valve does not close completely. Depending on the severity of the insufficiency, blood might flow backward though the valve in a process called regurgitation
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What occurs during the period of interphase known as the S phase?
A) DNA replication (synthesis) takes place. B) Genetic material is divided between the daughter cells. C) The cell is rapidly synthesizing proteins. D) Proteins, organelles, and cytosol are divided between the daughter cells.
A skeletal muscle generates its greatest twitch tension when it is stretched to twice its resting length.
Answer the following statement true (T) or false (F)
The sum of all of the electrical and chemical forces active across the membrane is known as the ________.
Fill in the blank(s) with the appropriate word(s).
In a trained athlete, the maximal oxygen consumption is increased due to:
A. an increase in the number of mitochondria B. more efficient blood delivery to muscle C. a reduction in the minute ventilation D. a higher resting heart rate