What is the effort of different types/intensity of exerise on heart rate

Q: write the name of each part of the heart next to the number and mark the blood flow with red arrows…

A: The human heart pumps blood during the frame thru the vessels of the circulatory system, providing…

Q: Generates electrical impulse that sets rhythm to the heart; the primary pacemaker of the heart. SA…

A: Heart has conductive system which generates and transfer the electrical impulses.

Q: +20 A Membrane -20 potential (mV) -40 Threshold -60 -80 0.8 1.6 Time (s) AV node threshold…

A: The SA node and AV node in the heart are responsible for generating electrical impulses that are…

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 diabetics develop abnormal ECGS before they show obvious symptoms of heart disease. For…

A: Electrocardiogram(ECG or EKG) a painless diagnostic test is performed to measure the electric…

Q: During strenuous exercise, blood flow will redistribute primarily to the       Liver

A: When a person starts  strenous exercising, the cardiovascular system undergoes few changes to meet…

Q: Explain your results using your knowledge of the cardiac cycle and of how the heart is regulated by…

A: ECG - it is graphical representation of activities of heart with help of chest leads that are placed…

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: During the Cardiac Contraction cycCle, EARLY ventricular systole is characterised by

A: ventricular systole- It is a phase of cardiac cycle in this the left and right ventricles contract…

Q: The conductance of which ion results in phase 2 characteristics in a ventricular myocyte action…

A: The non-pacemaker cardiac action potentials include the atrial and ventricular myocytes and Purkinje…

Q: Based on the concentration gradient of sodium, potassium, and calcium in cardiac myocytes, which of…

A: In a cell, the plasma membrane separates the internal environment (cytoplasm) from the external…

Q: What is a difference in membrane potential in the auto-rhythmic vs contractile cardiomyocyte auto:…

A: Cardiac tissue consist of muscles which helps in the contraction of the heart. They have two…

Q: The pressure in the veins sufficiently high to drive the flow of blood into the heart is callec O…

A: The heart is a fist-sized organ that pumps the blood throughout the body. It is the primary organ of…

Q: Compare and contrast the molecular events of the action potential in the pacemaker cells of the SA…

A: The action potential is a crucial physiological process that occurs in both pacemaker cells of the…

Q: Contractile cardiac myocytes use calcium influx across the plasma membrane for all of the following…

A: "Since you have posted multiple question we will answer the first question for you. If you want…

Q: Should Jhon expect any variation to the normal values of the heart rate knowing that the patient in…

A: Flight or fight mechanism is our body's automatic mechanism which prepares our body to accept or…

Q: Predict the consequences for the heart’s pumping effectiveness ifnumerous ectopic foci in the…

A: Ectopic foci are abnormal pacemaker sites outside the sinoatrial node.

Q: Which of these lists t n the correct order? O Sinoatrial node, Atrioventricular node, Purk…

A: There is presence of specialized muscle cells in the walls of the heart. These cells have the…

Q: Discuss how the SA and AV nodes control the contractionsof the heart muscle, as well as how these…

A: A network of specialized muscle cells is present in the walls of the heart. These muscle cells are…

Q: effect of exercise on cardiopulmonary function

A: The effects of exercise on cardiopulmonary function: Exercise places a far greater strain on the…

Q: Fill in the chart Drug Classification Effect on Heart Rate Epinephrine     Acetylcholine…

A: Cardiac drugs are the drugs that used to improve  or treat the disorders associated  with…

Q: Describe the main theories for the termination of calcium sparks in the cardiac muscle excitation…

A: The answer is well explained above

Q: The pulse rate will on standing and the pulse rate standing after 5 minutes will to normal.…

A: Pulse rate is commonly called heart rate, and it refers to the number of contractions caused by the…

Q: The pacemaker potential describes a slow depolarization of the membrane from -60 mV to -40 mV to…

A: A small structure known as the sinoatrial node (SAN) is located in the right atrium, close to the…

Q: list in sequence the components of the elctrical conducting system of the human heart

A: A pump of muscle tissue consists of a heart and a supply of energy and oxygen is required for the…

Q: Duration of one RR interval (time of one heartbeat) Heart Rate (Calculate using the RR interval)…

A: Standard speed that can be seen on ECG:- 1 SMALL square (1mm) = 0.04 sec (40ms) 5 SMALL squares…

Q: During the period from the end of the S-wave until the beginning of the T-wave the entire heart is…

A: An electrocardiogram is a device that measures the electrical activity of the heart represented by…

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: mean arterial pressure is a product of  heart rate and cardiac output none of the abouve cardiac…

A: Mean arterial pressure is that average arterial pressure which is present in one cardiac cycle. It…

Q: Explain why Purkinje fibers conduct action potentials morerapidly than other cardiac muscle cells

A: Purkinje fibers are components of the heart's advanced conduction system, which guarantees that an…

Q: If SA node (=natural pacemaker) fıring rate is 100 potentials per minute, but resting heart rate of…

A: Introduction: Some cardiac tissues are concerned with the initiation (impulse generation), and…

Q: In a cardiac contractile cell what is the mechanism involved in the change in membrane potential?…

A: The cardiac contractile cell undergoes various changes in order to perform several activities and…

Q: Discuss the mechanism underlying AP generation by cardiac autorhythmic cells

A: Simply put, a cardiac arrhythmia is an abnormal heart rate and/or rhythm that is not biologically…

Q: which of the following conditions at the S-A node will cause a decrease in heart rate? increased…

A: The objective of the question is to identify which of the given conditions at the Sinoatrial (S-A)…

Q: Number of double circulations completed by the human heart per minute under resting conditions is

A: Components of closed circulatory system It consists of heart to pump the blood, blood vessels like’s…

Q: Action potential of the heart it occurs when the cell reaches a point of stimulation, the sodium…

A: The human heart is responsible for generation of action potential (myogenic) that is the reason for…

Q: In a normal EKG, in the pre- cordial leads (V leads) where should the normal 2 wave transition coour

A: One of the important steps in decoding associate electrocardiogram (EKG) is deciding the electrical…

Q: Why is nitroglycerin given as a treatment for myocardial infarction? What does it do? Nitroglycerin…

A: Myocardial infection or heart attack is a blockage of blood flow to the heart muscle. It occurs when…

Q: Explain the pathway of the conductions system in the Heart?don't copy from google

A: The cardiovascular system of the humans consists of organs like heart and blood vessels. The primary…

Q: Describe the movement in ions in action potentials of these cells - pacemaker cell - cardiac…

A: Series of changes in various ion concentration such as calcium, sodium and potassium ions that…

Q: If ECG of patient shows a P-wave to P-wave interval time of 720 milliseconds, calculate the heart…

A: On ECG, each PQRS complex corresponds to each beat or each cardiac cycle. Hence the distance between…

Q: Which of the following changes to blood flow is expected to occur as a result of dynamic exercise?…

A: Blood is pushed through the blood vessels by the action of the heart and it is circulated throughout…