Use the Following Information to Answer Questions 5-7

question 4

Multiple Choice

Use the following information to answer Questions 5-7. A 60-year-old woman has a body weight of 110 kg, resting cardiac output of 9000 ml/min, arterial pressure of 90/50 mm Hg, arterial hematocrit of 25%, and normal body temperature. Her pressure-volume diagram of the left ventricle is shown below.
-At the end of ventricular isovolumic relaxation, which of the following occurs?

• A)Atrioventricular valves close
• B)Aortic valve opens
• C)Aortic valve closes
• D)Mitral valve opens
• E)Pulmonary valve closes

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Definitions:

Neurotransmitter

Chemicals released by neurons at synapses, which transmit signals across a chemical synapse from one neuron to another neuron, muscle cell, or gland cell.

Inhibitory Local Potential

A type of synaptic potential that makes a postsynaptic neuron less likely to generate an action potential.

Plasma Membrane

A biological barrier that demarcates the internal space of every cell from the external world, overseeing the transport of elements entering and exiting the cells.

Depolarization

A reduction in the difference in voltage across a cell's plasma membrane, making it more positive inside.