What is Cerebral Blood Flow?

Q: What areas of the brain are supplied by the MIDDLE CEREBRAL ARTERY?

A: The middle arteria is that the largest branch of the inner arteria. The artery provides a little…

Q: How does the cerebral arterial circle ensure that the brain has a constant supply of blood?

A: The cerebral arterial circle refers to the ring-like composition of arteries that encircle the…

Q: What is the Medullary Circulation?

A: Answer- There are many blood vessles that provide blood supply to the renal medulla.

Q: if the impulse is coming inferiorly from the SA node then how do the ventricles contract inferior to…

A: Sino atrial (SA) node is a pacemaker in the heart responsible for generation of action potential.…

Q: Where are the autorhythmic cells located/ List its function?

A: 1. Pacemaker Potential• An Autorhythmic cell has the unique ability to depolarize spontaneously,…

Q: How does vasoconstriction help increase the coretemperature of the body?

A: The body tightly regulates the body temperature through a process called thermoregulation, in which…

Q: Where on an EKG tracing do you evaluate ST-segment changes?

A: An electrocardiogram (ECG) is a simple test that checks the rhythm and electrical activity of your…

Q: How is perfusion in the brain increased for areas with increased activity?

A: The word perfusion is derived from the french word “perfuser”, which means “pour over or through”.…

Q: What is meant by collateral flow?

A: There is a system for supplying oxygen-rich blood to each organ of our body. In the case of the…

Q: What is an atrioventricular node?

A: The atrioventricular node (or the AV node) is an important part of the electrical control system of…

Q: What is the cerebral arterial circle, and what is its purpose? Which arteries contribute to it?

A: The nervous system is one of the vital systems of a body. It is a system of nerves which carry…

Q: What do tachycardia and bradycardia mean?

A: Bradycardia and Tachycardia are two forms of irregular heart rates or arrhythmias. These arrhythmias…

Q: How does cyanosis occur with the altered blood flow?

A: Cyanosis is defined as bluish discoloration of the skin, eyes, nails, and lips. Cyanosis is a…

Q: What is the main parts of ECG Explain it briefly?

A: The technique of creating an electrocardiogram is known as electrocardiography (ECG). It is a heart…

Q: What is atrioventricular bundle (AV bundle) ?

A: Atrioventricular bundle is also called as bundle of His.

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: Is the ventricle lumenlarger during systole or duringdiastole?

A: The heart is a pumping organ that pumps the blood throughout the body. The heart is made up of four…

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: What is Arterial Baroreceptors?

A: Arterial baroreceptors are stretch receptors that are stimulated when pressure changes occurs in…

Q: What is an electrocardiogram (ECG) and how it works?

A: The vascular system is responsible for pumping and supplying blood to all parts of the body. In…

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: Which areas of the brain are supplied by the PCA (posterior cerebral artery)?

A: POSTERIOR CEREBRAL ARTERY:-  The cerebral arteries have three main pairs of arteries:- 1) Anterior…

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 type of individualis likely to have bradycardia at rest?

A: Heart rates can vary from person to person. For adults, a fast heart rate is generally defined as a…

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 structures serve as the cerebral veins to carry blood to the internal jugular vein?

A: The internal jugular vein is a major vein concerned with draining of blood from major organs and…

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: What is sino-atrial node?

A: The heart is a muscular organ that pumps blood throughout the body. It is located in the middle…

Q: What is the normal function of the aortic and carotid sinus baroreceptors?

A: Receptors are chemical structures made up of proteins that collect and send signals that can be…

Q: How do skeletal muscles, respiratory movements, and vasoconstriction affect venous blood flow?

A: The blood vessels are a part of the circulatory system. It functions to transport blood all over the…

Q: What is hypertension?

A: Blood pressure is a measure of the force that your heart uses to pump blood around your body. Blood…

Q: Where does anatomic shunt exist?

A: Introduction: The fetal circulation starts when umbilical vein carrying oxygenated blood flow…

Q: How accurate is a one lead ECG?

A: One of the easiest and quickest diagnostics for cardiac evaluation is an electrocardiogram (ECG).…

Q: Define bradycardia

A: Bradycardia is the condition related to the heart. Heart is one of the vital organs responsible for…

Q: What is the coronary sulcus?

A: Introduction  Heart is highly muscular in nature and composed of smooth cardiac muscles which are…

Q: What is bradycardia?

A: Bradycardia is a heart condition which shows a slower heart rate than normal. Generally, elderly…