Please help me with these homework questions as soon as possible, solid answers
ID: 3506911 • Letter: P
Question
Please help me with these homework questions as soon as possible, solid answers will get a thumbs up
In the sinoatrial (SA) node, phase 4 depolarization (unstable resting membrane potential) is attributable to?
Which receptor mediates constriction of arteriolar smooth muscle?
Cardiac output of the right side of the heart is what percentage of the cardiac out-put of the left side of the heart?
The physiologic function of the relatively slow conduction through the atrioventricular (AV) node is to allow enough time for
Activity of parasympathetic nerves to the heart causes ______ heart rate by activation of ______ receptors on cardiac cells.
Explanation / Answer
1.pacemaker potential - trigers the action potential again
2. alpha 1 adrenergic receptors
3.nearly 65%
4.ventricular filling
5.decreass, M-2 receptors