How does the vasomotor center control peripheral resistance?

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: 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: A cardiologist observed an cntargc4 QRS wave in the ECU of a patient. What does it indicate?

A: ECG or electrocardiogram is a diagram or graph of the electrical activity of heart that is produced…

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 is the physiological function of pulse rate in response to persons active activities?

A: the measurement of heart rate or the number of heart beats is called pulse rate. when a person…

Q: Why do differences occur in maximal shortening velocities?

A: The shortening speed of a muscle fiber is that the rate of its shortening.

Q: What factors determine local blood flow during exercise?

A: Blood flow can be defined as the process of the flow of the blood in the body. The factors which…

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: Do minor movements such as sitting and standing affect pulse rate? How long does it take for pulse…

A: Sitting & Standing: [affect pulse rate]             Slight repeated movements and vascular…

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: How do the vasomotor center coordinates both vasoconstriction and vasodilation?

A: Blood pressure can be defined as the force of the  blood  that pushes against the walls of our…

Q: Describe the functional significance of the skeletal muscle pump and illustrate the action ofvenous…

A: Blood is a type of connective tissue that helps in circulating oxygen and nutrient throughout the…

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: What are the three factors that can affect peripheral resistance? Which of these factors is more…

A: Peripheral resistance is the resistance of the arteries to blood flow. As the arteries constrict,…

Q: Which are the several baroreceptors in the cardiovascular system?

A: Baroreceptors are a kind of mechanoreceptor permitting the relay of data developed from blood…

Q: What effect does standing still for a prolonged time haveon the blood pressure in the feet and in…

A: The heart purposely pumps blood at a particular pressure such that blood is able to flow against the…

Q: How does the excitation-contraction coupling in skeletal muscles and in cardiac muscles differ?

A: Introduction: The excitation/ depolarization of the muscle fiber results in developing action…

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: What happens to systemic blood pressure when the smooth muscle of muscular atries contract?

A: Blood vessels : Blood capillaries are artery ,vein , capillaries are made by three layers - Tunica…

Q: How does digitalis result in an increased contractile force of cardiac muscle?

A: The muscular system consists of three types- Smooth muscle Skeletal muscle Cardiac muscle Cardiac…

Q: Which determinant of resistance is varied physiologically to alterblood flow?

A: To answer this question we should have knowledge of Physiology.

Q: Define vasomotor center

A: The brain is a powerful organ that controls all the functions of the body along with providing…

Q: What effects do epinephrine and norepinephrine have on peripheral resistance and blood pressure?

A: Epinephrine and nor epinephrine are similar Chemicals that act as both neurotransmitters in the body…

Q: What is the relationship between the pulse and the vasculature?

A: Pulse : it refers to the rhythmic expansion and contractions of the arteries when blood is pumped…

Q: Is Elastance the reciprocal of compliance? Explain how?

A: Ventilation is the process by which oxygen is pulled into the lungs, which eliminates the carbon…

Q: What is the vasa vasorum? What is its function?

A: The human body's blood vessels are a closed system of tubes that transport blood to all parts of the…

Q: Blood flow distribution changes significantly with exertion. Where does blood flow primarily…

A: Blood is referred to as the body fluid of organisms that is principally responsible for carrying out…

Q: How do the baroreceptors regulate arterial blood pressure?

A: Arterial blood pressure is regulated within a normal range normally, ranging from 85 to 100 mmHg in…

Q: What is the mechanism of myogenic autoregulation? Where does this take place? How will this affect…

A: The system which helps to pump blood from heart to lungs to get oxygen is known as cardiovascular…

Q: What is the stage of thecardiac cycle during which theventricles are filled?

A: The cardiac cycle is the sequence of events that occurs when the heartbeats. One cardiac cycle is…

Q: What two structures directly receive an electrical impulse from the SA node?

A: Introduction: The sinoatrial node (SA node) is located on the heart's posterior region at the…

Q: cause of reflex tachycardia

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

Q: Epinephrine is released during vigorous exercise. How would epinephrine cause vasoconstriction in…

A: Epinephrine is a hormone which is secreted from the adrenal medulla gland as a fight or flight…

Q: What happens to blood flow during exercise? What is functional sympatholysis?

A: Blood flow refers to the continuous movement of blood across a specific vessel in the cardiovascular…