The cells of the SA node at the top of the heart are known as the pacemaker of the heart because the rate at which these cells send out electrical signals determines the rate at which the entire heart beats (heart rate). The cells that create these rhythmic impulses, setting the pace for blood pumping, are called pacemaker cells, and they directly control the heart rate. They make up the cardiac pacemaker, that is, the natural pacemaker of the heart. Hope this helps!
Answer:
i think ik it is set a time
Explanation:
o thokn
Having confederates who were more attractive.
Answer:
internal conflict - using drugs to cope with stress, depression, or anxiety
resolution- healthy stress reduction methods
Explanation
Teenagers may use drugs as a coping method when there are problems in that teen's life. Say, a lot has been going on at home, causing the teen to develop depression with all the stress they have been under. In order to push the negative feelings away, the teen turns to drugs, because the drugs make the individual feel better while pushing all those negative feelings away. The teen went about solving his or her problems the wrong way. Instead of turning to drugs, the teen could do things such as talk about their problems with friends/family, write their emotions in a journal, exercise, or meditate to help ease the stress.