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Match the appropriate label to each numbered blank. Answers may be used more than once. (1 point each) Image Description  Two graphs illustrating changes in membrane potential over time. Both graphs depict different phases of electrical activity in cells. Top Graph: Region 65: Located on the left side of the graph, this vertical segment shows a sharp rise in membrane potential, indicating a rapid depolarization phase where the potential becomes significantly more positive. Region 66: Following the sharp rise, this curved segment shows a gradual decline in membrane potential, representing the repolarization phase where the membrane potential returns to a more negative value, approaching the baseline level. Bottom Graph: Region 67: This segment is located at the baseline and shows the initial membrane potential before any significant changes. This stable phase represents the resting state of the membrane. Region 68: This upward curve shows the rapid rise in membrane potential, indicating depolarization. The potential becomes more positive, reaching its peak value, which is essential for initiating cellular activity. Region 69: Following the peak, this downward curve indicates repolarization, where the membrane potential decreases, returning towards the baseline. This phase is crucial for resetting the membrane potential after depolarization.

Which of the following factors decrease the ability of a skeletal muscle to maintain a constant force of contraction during repetitive stimulation?

Compared to resting conditions, how does exercise affect blood flow to skeletal muscles?

How would an increased blood viscosity affect mean arterial pressure?

 A nurse in the emergency department is caring for a client and finds razor blades hidden in the client’s personal belongings. The nurse should identify that this finding is consistent with which of the following disorders?

The respiratory pump facilitates the return of blood to the heart by ________.

How would an increased venous return affect mean arterial pressure?

Which step of synaptic transmission at the neuromuscular junction is disrupted by curare, a toxin derived from the Strychnos toxifera plant?

How would rapid, severe blood loss affect mean arterial pressure?

Dr. Hansen goes to the doctor for her routine annual physical. The exam begins with the nurse taking her vitals. Her blood pressure is 102/71. Her heart is beating 73 times per minute. Prior to each contraction, there is 160 ml of blood in her left ventricle, and 55 ml remains in the ventricle after the heart contracts. What is Dr. Hansen’s MAP?