In an EKG, the P wave is generated when the A. ventricles repolarize. B. atria depolarize. C. atria repolarize. D. ventricles depolarize. Which of...

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Medical Sciences

In an EKG, the P wave is generated when the
A.
ventricles repolarize.
B.
atria depolarize.
C.
atria repolarize.
D.
ventricles depolarize.
Which of the following does NOT contribute to venous bloodpressure?
A.
constriction of smooth muscle around veins by the sympatheticnervous system
B.
increased abdominal pressure during breathing
C.
venous anastomoses
D.
skeletal muscle activity
Blood flow is proportional to the difference in bloodpressure. Blood flow is proportional to the totalperipheral resistance.
A.
directly; directly
B.
directly; inversely
C.
inversely; inversely
D.
inversely; directly

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3.6 Ratings (470 Votes)

in EKG p wave is generated because of atrial depolarisation p wave is the first wave on ECG and atrial depolarisation is the first recordable electrical activity of heart venous anastomoses See Answer

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	A.	ventricles repolarize.
	B.	atria depolarize.
	C.	atria repolarize.
	D.	ventricles depolarize.

	A.	constriction of smooth muscle around veins by the sympatheticnervous system
	B.	increased abdominal pressure during breathing
	C.	venous anastomoses
	D.	skeletal muscle activity

	A.	directly; directly
	B.	directly; inversely
	C.	inversely; inversely
	D.	inversely; directly