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

Q: How are blood flow and the pressure gradient related? How are blood flow and resistance related?

A: Blood can be defined as the body fluid that is present in humans and other animals and it play the…

Q: What is the patient’s current pulse pressure and what are the main determinants of pulse pressure?

A: The difference between systolic and diastolic blood pressures is defined as pulse pressure.The…

Q: What account for the increase in blood pressure at old age?

A: High blood pressure also said to be hypertension. It is very commonly seen in old age…

Q: Why is it necessary for cells of the cardiac atria and ventricles to contract in a coordinated…

A: Introduction :- Blood from the veins enters the two atria, which have thin walls. The heart's two…

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: What is ventricular fibrillation?

A: The heart is a muscular organ that is divided into the left and right sides to prevent the mixing of…

Q: How does a change in vessel diameter affect peripheral resistance?

A: Blood vessels can be defined as the channels or the behavior through which blood is distributed to…

Q: What is the reason for coloring blood vessels red and blue in drawings? Which vessels are usually…

A: Veins are the only blood vessels that can be visible near the outside of the epidermis since…

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: What is the limiting cardiovascular factor in endurance exercise?

A: Endurance exercise is also called aerobic exercise. It involves activities that elevate breathing…

Q: A person’s cardiac output is 7 L/min and mean arterial pressure is 140 mmHg. What is the person’s…

A: The mean arterial pressure defines the average volume of blood present in the blood vessels which is…

Q: What is the role played by nitric oxide in preventing atherosclerosis? Describe all tissue and…

A: Atherosclerosis is a cardiovascular condition of hardening and narrowing of arteries which can put…

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 is meant by double circulation? What is its significance?

A: The circulatory system permits the blood circulation and thereby transports oxygen as well as…

Q: How do capillaries develop and grow (angiogenesis)? Explain with an example?

A: Angiogenesis, the physiological process by which development of new blood vessels from preexisting…

Q: What is the primary cause of the low velocity of bloodflow in capillaries?

A: The circulatory system is one of the major systems of the human body. The circulatory system…

Q: Why is the velocity of blood flow faster in arteries and veins than in capillaries?

A: Rate or Velocity of blood flow varies inversely with the total cross sectional area of the blood…

Q: What is the relationship between blood pressure, blood flow, and resistance to blood flow?

A: The movement of blood through the tissues, organs, and blood vessels is known as blood flow and is…

Q: What are angina pectoris, CABGS, and angioplasty?

A: Angina or angina pectoris is a heart condition described as chest pain, squeezing, heaviness or…

Q: How does exercise affect blood pressure?

A: Exercise increase blood pressure and then it returns to normal pressure. The systolic blood pressure…

Q: What is systemic vascular resistance and what factors contribute to it?

A: In simple words it means resistance to blood flow offered by all the systemic vasculature (except…

Q: What is pulse amplitude in terms of cardiology?

A: Cardiology is a branch of medicine dealing with the study of diseases as well as abnormalities…

Q: What are the relative velocities of flow through the various vessel types of the systemic…

A: Systemic circulation carries pure/oxygenated blood from the left ventricle (through the arteries) to…

Q: How fast is the number of Americans who are expected to be over 100years old growing? What is the…

A: Aortic valve repair and replacement are procedures to address diseases affecting the aortic valve.…

Q: What is the relation between age and blood pressure?

A: Blood pressure is the force which helps in movement of blood through circulatory system.It is a…

Q: How does aging affect blood pressure? Is advanced age considered a barrier to aggressive…

A: Aging:- it is a process of progressive deterioration that causes reduction in physiological…

Q: What is the relationship between cardiac output and venous return in the steady state?

A: Cardiac output is the amount of blood pumped into the aorta by the heart per minute, and it is…

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: What is the force driving venous return?

A: * Veins are blood vessels which return blood to the heart. * The pressure in these veins is the…

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: What is capillary conductivity or capillary permeability and also describe about its factors?

A: Capillaries play a significant role in the physiology of the body. They are the minute blood…

Q: What is autorhythmicity? Describe how nodal cells function as autorhythmic cells to serve as the…

A: The cells associated with the function of creating the rhythmic impulses in order to set the pace…

Q: What are blood pressure measurement methods?

A: Blood pressure refers to the pressure that is exerted on the walls of the blood vessels. Some of the…

Q: What is the relationship between peripheral resistance and blood pressure? How does the vasomotor…

A: Blood pressure (BP) is a measure of the force being exerted on the walls of arteries as blood is…

Q: What is meant by autoregulation of blood flow and what is the mechanism involved

A: autoregulation of blood flow is regulated by neuro hormonal factors, physical pressure, endothelial…

Q: How is local blood flow dependent on total blood flow?

A: Blood flow refers to the circulation of blood through the vessels from arteries to the capillaries…

Q: High-pressure environments have a profound effect on the cardiopulmonary system. What are they?

A: Cardiopulmonary is a combination of two words that is cardio and pulmonary. Cardio means heart and…

Q: How are preload, afterload, and contractility managed therapeutically in the patient with heart…

A: Heart failure is characterized by the heart’s inability to pump an adequate supply of blood to the…

Q: What is cardiovascular mechanics and why is it relevant ?

A: Circulatory system plays the very important role of delivering nutrients and oxygen to the cell and…

Q: What is the difference between a systolic and a diastolic pressure reading? is a blood pressure of…

A: Blood pressure is considered as the force, which exerts towards the wall of the artery.

Q: What are the three determinants of resistance?

A: The resistance to blood flow within a single vessel is determined by three basic factors: vessel…

Q: What is vasomotion? What is autoregulation of local bloodflow?

A: Answer: Introduction: Vasomotion controls liquid and nutrient exchange amongst the vascular system…

Stress

Stress is defined as the feeling of being overwhelmed or unable to cope with emotional or mental pressure. Any event or action that makes a person annoyed, furious, or nervous can trigger it. Chemical changes in the body caused by stress can cause blood pressure, blood sugar levels, and heart rate to rise.