How exactly does the heartbeat work? Does the right and left atrium pump blood at the same time? Or is it more like:

Q: Fill in the Blank: Match the number to the part of the heart in the flow of circulation. Superior…

A: The objective of the question is to identify the correct sequence of blood flow through the heart…

Q: After exercising many of you saw an INCREASE in the amplitude of the pulse transducer suggesting…

A: The sympathetic nervous system is stimulated by exercise and various changes take place in body as a…

Q: What do you think about artificial heart? How is real heart different to artificial heart? do you…

A: The working of artificial Heart is very complex and so is its cost. The challenge is to make a…

Q: The Effects of Lifestyle, Sex & Genetics on Blood Pressure Many things might affect heart rate,…

A: The pressure exerted by the circulating blood against the walls of blood vessels is known as blood…

Q: Some babies, called “blue babies,” are born with a small hole in the wall between their heart’s left…

A: The cardiovascular system of the human body is made up of heart, blood, and blood vessels that help…

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: . ECG depicts the depolarization and repolarization processes of a cardiac cycle. In the ECG of a…

A: The electrocardiogram (ECG) is the total amount of the action potentials of millions of…

Q: Describe the principal functions of the two major groups of adreno-cortical steroids, the…

A: The adrenal cortex that forms the outer layer of the adrenal gland produces polycyclic steroid…

Q: Exercise-induced stress increases cardiac output and vasoconstriction, so why does the amplitude of…

A: Heart rate is defined as the number of times the heart beats per minute. A typical heart rate ranges…

Q: The foramen ovale and ductus arteriosus are found in the fetal heart but not the normal adult heart.…

A: Foramen locale is a small gap or hole in the septum  between two chambers of heart present normally…

Q: Which best describes blood flow through the heart? oxygenated blood comes into the heart's left…

A: The heart, the lungs, and the blood vessels function to form the round circulatory system. The 3…

Q: A key role of the atrioventricular node is to   act as a barrier to prevent the electrical impulse…

A: Heart pumps blood through a system of blood vessels, called the circulatory system. The heart is a…

Q: The Alexandrian physician Herophilus, originally from Chalcedon, was able to make which of the…

A: That a weak but rapid pulse was a sign of significantly increased blood volume: This conclusion…

Q: The muscle cells of a heart chamber work as a  functional syncytium.  In terms of heart function…

A: The heart is a meso-dermally derived organs. The walls of heart are made up of cardiac muscles.…

Q: Dh no! TA Tim accidentally wandered into a surgical ward and was put in charge of doing another…

A: This is a rare medical condition also when the heart is placed backwards or face towards the right…

Q: All of the followings are correct about the myogenic pacemaker except, --------------------- They…

A: The cardiovascular system is a principal organ system of the human body concerned with the transport…

Q: how does you heart utilize preassure gradients to circulate blood?

A: Introduction :- A human or other vertebrate's complete body is circulated by a system of organs…

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: Herophilus from Chalcedon identified how many chambers in the human heart? 6 chambers: the right…

A: The question is asking about the number of chambers in the human heart that were identified by…

Q: Why is the cardiac action potential propagated more slowly in an AV node cell then in an atrial or…

A: Cardiac action potential  It refers to the short alteration in the voltage i.e. membrane potential…

Q: Roberto is a 78-year-old male who has recently been diagnosed with Class III Congestive Heart…

A: Congestive heart failure refers to the loss of pumping efficiency of the heart.  Due to the low…

Q: Why doesn't shortening the diastolic time decrease ventricular filling and thus decrease cardiac…

A: Introduction :- Cardiac output, which is calculated as the sum of stroke volume and heart rate and…

Q: Let's review the electrical events that occur during a heartbeat. Match each phase of the ECG in the…

A: A. The atria depolarize ( P wave)B. The ventricles repolarize (T wave)C. (Diastolic interval; the…

Q: What are the three populations of cells in the heart that can act as pacemakers? How do they differ?

A: The heart is a muscular organ and is involved in the pumping of blood via blood vessels. The blood…

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: Describe why your heart rate increases with exercise. What would happen if your heart did not beat…

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

Q: Which chamber has higher pressure during the following phases of the cardiac cycle? a) ventricular…

A: Introduction: The cardiac cycle describes the human heart's activity from the start of one heartbeat…

Q: Crocodilians, birds, and mammals lungs receive oxygen-poor blood heart has one atrium and one…

A: The circulatory system is a vital part of the human body. It is in charge of distributing various…

Q: Let your arm hang limply by your side again until the veins become very visible, then slowly raise…

A: Introduction;- The heart is a muscular organ shaped like a fist, located at the back and slightly…

Q: The mammalian heart can beat without input from the brain. True Or false?

A: Heart can be myogenic or neurogenic. In myogenic heart, beating rhythm occurs through specialized…