What are the three factors that can affect peripheral resistance? Which of these factors is more important than the other ones? Why is this one the most important one?

Q: In what ways are autorhythmic fibers similar to and diff erent from contractile fibers?

A: Heart is a four chambered cardiovascular organ pumping blood throughout the body. The auricles and…

Q: What is a pressure gradient? Where are the pressure gradients present in the vasculature? Give…

A: Introduction: The heart is a hollow muscular organ that pumps blood through the circulatory system…

Q: Define peripheral resistance (PR)

A: Peripheral resistance can be defined as the opposing force applied by the arteries on the blood…

Q: 'Which of the following ions is not directly involved in the myocardiocyte action potential? copper…

A: The myocardiocyte action potenital is found in the heart cells.

Q: What are the major sites of resistance in the systemic vascularsystem?

A: The circulatory framework, additionally called the cardiovascular framework or the vascular…

Q: Leaky Na+ channels in the cells of the SA Node do which of the following?   a-allow a slow…

A: d-allow a slow depolarization that eventually reaches the threshold for voltage-gated Ca2+ channels.

Q: What are the causes of Hypertrophic cardiomyopathy?

A: A complex heart disease where the heart muscles get thickened is called as hypertrophic…

Q: How does the SNS control vascular smooth muscle in arterioles?

A: The autonomic nervous system possesses two major divisions, sympathetic and parasympathetic nervous…

Q: What does the term bipolar lead mean with regards to ECG

A: ECG or electrocardiogram is a simple, painless test that measures the heart's electrical…

Q: Let’s say an arteriole dilates to 50% greater than its original size (i.e., the new radius of the…

A: Arterioles are the smallest tubes of arterial system. Their walls are relatively rich in smooth…

Q: What regulates total peripheral resistance?

A: Total peripheral resistance can be defined as the sum of force that affecting as the generation of…

Q: How are blood pressure and peripheral resistance related

A: The pressure exerted by the flow of blood in blood vessels is referred to as blood pressure. It…

Q: What are the major physiological factors influencing capillary blood flow? What are the major…

A: Blood flow and its pressure is influenced by four key factors: cardiac output, blood volume,…

Q: What are the three factors that alter resistance? How does each affect blood flow in vessels?

A: The circulatory system is one that allows blood to circulate and move supplements, oxygen,…

Q: Myogenic behavior of arterioles:

A: Arterial constriction in response to intravascular pressure is a common myogenic activity found in…

Q: How does the vasomotor center control peripheral resistance?

A: Introduction: The adjustment to the blood pressure can be made by altering the below-mentioned…

Q: If branch A is twice the length of branch B, what is true regarding the resistance in branch A…

A: The Poiseuille's law states that the flow of fluid is related to various factors including length…

Q: Why is the rate of cardiac muscle relaxation faster when a positive inotropic agent is present?

A: Inotropic agents refer to those substances that either increase or decrease the force of contraction…

Q: Hemorrhage is a serious, life-threatening situation. Discuss the various reflex compensatory…

A: Hemorrhage is a clinical condition which arises when the volume of the blood is drastically…

Q: In the nineteenth century, Poiseuille’s law was experimentally deduced byJ. L. M. Poiseuille, who…

A: There are few primary assumptions for the validity of Poiseuille’s Law. Whenever one assumption…

Q: What is the mucociliary escalator?  What would the consequences be to a person if it were damaged?

A: In the human respiratory system, there are two zones called the respiratory zone where actual…

Q: Why is your heart rate high after running a short distance, but not as elevated after running a much…

A: Introduction: To maintain blood circulation throughout the body, the heart beats nonstop. Its rate…

Q: Why is the Frank-Starling law of the heart important to the understanding of heart failure?

A: Frank starling law is a law that defines the relation between end diastolic volume and stroke…

Q: How can telemedicine play an important role in the treatment and management of hypertension?

A: Elevated blood pressure in the arteries is the hallmark of hypertension, a medical disorder…

Q: Below are drawings of three different action potentials. Two of these occur in the heart, and one…

A: An action potential is a term that denotes the change in the resting membrane potential upon stimuli…

Q: What is meant by the term venous return?

A: The flow of blood back to the heart is known as Venous return. The blood is received by the right…

Q: Why do implantable defibrillators require far less power on their own than a pacemaker?

A: Pacemaker is known as artificial heart which is incorporated of any problem in functioning of the…

Q: Carotid Sinus Massage is used as a clinical tool in the diagnosis of certain cardiovascular…

A: The carotid sinus reflex is a physiological mechanism that helps to regulate blood pressure. The…

Q: what is the relationship between heart rate ( arrhythmia and potassium level .and what is the…

A: Hyperkalemia is a higher than normal level of potassium in the blood. Although mild cases may not…

Q: How is vascular resistance regulated centrally by the autonomic nervous system and locally by…

A: Vascular resistance refers to the resistance that opposes the blood flow.

Q: cause of reflex tachycardia

A: TACHYCARDIA It is the medical which represents the fast heart rate. REFLEX TACHYCRDIA The reflex…

Q: Fill in the following blanks (a - f) regarding the Baroreceptor Reflex Control: The baroreceptor…

A: There are specialized stretch receptors called as baroreceptors present in the thin areas of blood…

Q: Give two reasons why the Purkinje fibres are faintly stained compared with ordinary cardiomyocytes

A: Purkinje fibres are excitable cells or fibres present in the inner ventricle wall of heart. They are…

Q: In the following graphs of pacemaker potential recordings from the SA node, what graph represents…

A: Pacemaker potential is a action potential of SA nodes. Which has three phases- zero, three &…

Q: Describe the pressures which affect the movement of fluids from the intravascular to the…

A: The space that surrounds the cells of a given tissue that is filled with interstitial fluid which…