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What event stimulates the contraction of cardiac muscle?
The event that stimulates the contraction of cardiac muscle is the electrical signal generated by the sinoatrial (SA) node in the heart, also known as the pacemaker of the heart. This signal causes the heart muscle cells to contract and pump blood throughout the body.
Structure that carries the heart electrical impulse into the ventricle?
The structure that carries the heart's electrical impulse into the ventricles is called the bundle of His. It is a collection of specialized muscle fibers located in the walls of the heart's chambers that conducts the electrical signal from the atrioventricular node to the ventricles, initiating their contraction.
What creates heart rate?
Heart rate is simply the number of times that the heart beats per minute. This is generated by the "pacemaker" of the body which is the signal sent from the brain to the heart's sinoatrial (SA) node. This causes the initiation of contraction of the cardiac muscle which spreads across the heart to contract the atria and ventricles in a rhythmic fashion. The number of times this signal is sent from the brain to the heart gives the heart rate.
What is the scientific name for the contraction of the heart?
The scientific term for the contraction of the heart is "systole." This is when the heart muscle contracts to pump blood out of the heart's chambers and into the circulatory system.
Why larger waves seen on the oscilloscope represent venticular contraction?
Larger waves on an oscilloscope during ventricular contraction indicate a higher electrical activity in the heart muscle as it contracts more forcefully. This increased electrical activity produces a stronger muscle contraction in the ventricles, resulting in a larger signal on the oscilloscope.
Where does heart contraction begin?
The area in the heart where contraction begins is a question given by ma'am Luvim Bilango. haha..
What is the contraction of the heart chambers in a regular cycle called?
The contraction of the heart chambers in a regular cycle is called systole
What is the meaning of the two sounds of the heart?
relaxation and contraction of the heart
Where does the heart contraction start and how does it travel?
no
What does the pushing force come from to push the blood out of the heart?
The pushing force that moves blood out of the heart is generated by the contraction of the heart muscle itself. When the heart contracts, it creates pressure that pushes blood into the arteries, allowing it to circulate throughout the body.
What allows the movement of blood in and out of the heart?
contraction and relaxation of the heart muscles
What allows the movements of the blood in and out of the heart?
contraction and relaxation of the heart muscles
