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The contraction of ventricles is referred to as what?
systole
Is the sequence of contraction and relaxation is referred to as a pulmonary cycle?
no
What are the parts of the ventricular system?
The ventricular system consists of four interconnected cavities in the brain called the lateral ventricles (one in each hemisphere), the third ventricle, and the fourth ventricle. Cerebrospinal fluid is produced in the ventricles and circulated around the brain and spinal cord to provide cushioning and protection.
Uncoordinated irregular activity of the ventricles is referred to as ventricular what?
Uncoordinated irregular activity of the ventricles is referred to as ventricular fibrillation. This condition is characterized by rapid, chaotic electrical impulses in the ventricles, preventing them from contracting effectively and pumping blood. It is a life-threatening emergency that requires immediate medical intervention, such as defibrillation, to restore a normal heart rhythm.
The alternating contraction and relaxation of opposing layers of smooth muscle is referred to as?
Peristalsis
What is the ventricular system?
The ventricular system is a network of interconnected cavities in the brain that produce and circulate cerebrospinal fluid (CSF). It consists of four ventricles: two lateral ventricles, the third ventricle, and the fourth ventricle. The ventricular system helps protect the brain by providing cushioning and support, removing waste, and regulating pressure within the skull.
What would a premature ventricular contraction in which the QRS waves have the same configuration each time they appear be described as?
A group of premature ventricular contractions in which the QRS configuration is always the same are referred to as monomorphic premature ventricular contractions.
Where is the aic valve located?
The aortic valve, often referred to as the AIC valve, is located between the left ventricle of the heart and the aorta. It plays a crucial role in regulating blood flow from the heart to the rest of the body, ensuring that oxygenated blood is efficiently pumped out. The valve opens during ventricular contraction and closes during relaxation to prevent backflow.
Which structure of the conduction system was formerly called the bundle of His?
The structure of the conduction system formerly known as the bundle of His is now referred to as the atrioventricular (AV) bundle. It is responsible for conducting electrical impulses from the atria to the ventricles of the heart. The AV bundle splits into right and left bundle branches that extend into the ventricles, facilitating coordinated contraction.
What cardiac arrhythmia is fatal unless reversed?
Cardiac arrhythmia is usually fatal unless reversed by electric defibrillation. Cardiac arrhythmia is also sometimes referred to as ventricular fibrillation.
What is the Resistance to flow or impedance to ventricular ejection referred to as?
Afterload
What is the physiology of ventricular tachycardia?
A rapid heart rate can originate in either the left or right ventricle. Ventricular tachycardia which lasts more than 30 seconds is referred to as sustained ventricular tachycardia
