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What is meant by 'intrinsic control of the heart beat?
shs
What two organ systems are involved in the extrinsic control of the heart?
The nervous and endocrine system.
What immune systems are involved in fighting the heart disease?
none, heart disease is not that kind of disease.
What two type of tissue found in the heart and why?
here the heart has muscular tissue.The muscles mainly involved are cardiac(smooth muscle) and involuntary.This is because they are not under our control.
What is the function of the intrinsic conduction system of the heart?
The intrinsic conduction system of the heart is responsible for initiating and coordinating the electrical impulses that regulate the heart's contractions. It includes specialized cardiac muscle cells that generate and conduct electrical signals to ensure the synchronized contraction of the heart muscle, allowing for efficient blood pumping.
What is called when the intrinsic ability of the heart to pump all the venous return blood?
Starling's Law or the Frank-Starling Law of the heart.
Why is heartbeat called intrinsic?
Heartbeat is termed "intrinsic" because it originates from the heart's own pacemaker cells, specifically the sinoatrial (SA) node, which generates electrical impulses independently of external stimuli. This intrinsic ability allows the heart to maintain a regular rhythm and pace regardless of external factors, ensuring consistent blood circulation. The autonomic nervous system can modulate this intrinsic rhythm, but it is fundamentally self-regulated.
Describe the funtions of each of the eleven organ systems?
The eleven organ systems regulate, coordinate and control your bodily functions to keep you alive.
What part of the intrinsic conduction system of the heart that directly supplies the wall of the ventricle?
Purkinje fibers
What portion of the cardiac conduction system has the fastest intrinsic rate?
The sinoatrial (SA) node has the fastest intrinsic rate in the cardiac conduction system, typically firing at a rate of 60-100 beats per minute in a healthy heart. It serves as the primary pacemaker of the heart, initiating each heartbeat by generating electrical impulses.
Do the aortic and pulmonary valves control the flow of the blood into the heart?
No, semilunar valves control the flow of blood out of the heart.
What is the intrinsic rate of sa node?
The intrinsic rate of the sinoatrial (SA) node, the heart's natural pacemaker, is typically around 60-100 beats per minute in healthy adults. This intrinsic rate can change based on autonomic nervous system inputs such as sympathetic and parasympathetic stimulation.
