1. Complete the diagram of the action potential in the sinoatrial node. Illustra
ID: 3483274 • Letter: 1
Question
1. Complete the diagram of the action potential in the sinoatrial node. Illustrate when each conductance occurs during the action potential. List the properties of all the channels and their associated conductances undertying the changes in Vm. 2. Trace the path of a red blood cell as is courses its way through the cardiovascular system. You must arrange the choices below in the proper order. Note that these steps may not be continuous (e., there may be several steps missing in between the choices listed; it is your job to know that and put them in the correct order). Each answer will only be used once. Begin with the red blood cell in the lungs, then... a. Pulmonary Artery b. Right atrium c. Aortic semilunar valve d. Vein e. Left ventricle ab. Pulmonary semilunar valve ac. Aorta A. next location B. next location C. next location D. next location E. next location F. next location G. next location 3. Define how and why we change airway resistance during respiration 4. Describe your clinical concems for a premature infant born at 31 weeks gestation. Incdlude the bases for pathophysiology this infant may face, and how you would treat this patientExplanation / Answer
2.A. left ventricle
B.aortic semilunar valve
C.aorta
D.vein
E.right atrium
F. Pulmonary semilunar valve
G.pulmonary artery
3. Airway resistance is the resistance of airflow during exhalation and inhalation. There are some important determinants which plays role as
Diameter of the airways , as diameter increases then passage for airways also increases.
The airflow is either laminar or turbulent.
for eg. In case of asthma the airways constrict causing an increase in
Airway resistance.
4. The premature baby requires more attention and care as these babies are more frazile and requires more support either respiratory support in the form of surfactant, mechanical support and oxygen therapy due to incomplete develooment of lungs . Baby also not able sucking milk so
Nastrograstic tube or intravenous feeding, developments also delays due to premature.
Temperature should also be maintained properly.
The changes of infection is more so more care is needed.
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