mean arterial pressure is a product of  heart rate and cardiac output none of the abouve cardiac output and total peripheral resistance stroke volume and heart rate

Q: Stability of the knee is p O the menisci O the ligaments O the muscles

A: The bones of the upper and the lower limb meet at the knee joint. It forms the largest joint of the…

Q: stroke volume, end systolic volume, end diastolic volume, resistance, venous return, mean arterial…

A: Cardiac output is the volume of blood being pumped by the heart, by the left and right ventricle,…

Q: An individual s venous return to the heart at this moment contains much less oxygen than it did…

A: Less oxygen in the venous blood means that oxygen has been extracted and is being used in the…

Q: Cardiac output increases during exercise due to an increase in both heart rate and stroke volume.…

A: The cardiovascular system has an important role in regulating homeostasis in the human body by…

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

A: We can measure exercise intensity using target heart rates, the talk test, or the exertion rating…

Q: A decrease in parasympathetic stimulation of the SA NODE Increase in HR;decrease in cardiac output;…

A: The heart has an autorhythmicity trait that allows it to beat without being controlled by the…

Q: cardiac cycle includes all the events associated with the flow of blood thre heart during a single…

A: Heart consists of four chambers, two upper chambers called atrium. and two lower ventricles. All…

Q: Sympathetic stimulation of the veins Causes vasodilation and an increase in stroke volume Causes…

A: Autonomic nervous system (ANS) is responsible for controlling involuntary muscle movements and…

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: Maximum aortic pressure during the cardiac cycle is called pressure

A: The human heart is a muscular organ which pushes blood into the circulatory system's arteries and…

Q: Blood flow in the heart from right atrium to right ventricle to pulmonary arteries to the lung in…

A: The heart, blood vessels like arteries, veins and capillaries are part of the circulatory system of…

Q: constriction of a blood vessel to one-half of its resting diameter would increase its resistance to…

A: The answer is 16.

Q: Plot the tension in the left ventricle, assuming that only the diameter changes during the cardiac…

A: The blood flows through the systemic and pulmonary circulation following a specific pathway known as…

Q: Autorhythmic cells in the SA node intrinsically fire at a rate of - 90 action potentials per minute.…

A: While performing exercise, the cardiovascular apparatus performs two major tasks:- 1. Provides…

Q: This will result in:

A: This will result in an increase in preload.Preload is the amount of force that stretches the…

Q: cardiac output drops, then A and B • A and C Blood flow must decrease Blood flow must increase  The…

A: The objective of the question is to understand the physiological changes that occur when cardiac…

Q: Put the progression of the electrical excitation of the heart muscle in the right order Atrial…

A: Circulatory system is a part of body system which is involved in circulation of body fluids like…

Q: The variable which has the biggest effect in regulating blood flow and vascular resistance is:…

A: Human blood is the most prevalent fluid found in a body that flows throughout under high pressure…

Q: The sinoatrial node is also called the A. PacemakerB. Action potentialC. Resting membrane potent

A: Heart is an important organ that pumps blood. Heart is myogenic in nature meaning it is capable of…

Q: Cardiac output is determined by what two variables ? preload and afterload end - diastolic volume…

A: Cardiac output, otherwise called heart output, is a term utilized in heart physiology that portrays…

Q: Smooth muscle is responsible for vasoconstriction. True O False

A: Cells are the basic structural and functional unit of all known organisms which help in the process…

Q: Which of the following interventions will increase cardiac stroke volume? increased activity of…

A: Stroke volume: The quantity of blood discharged from the ventricle during each cardiac cycle is…

Q: In blood pressure measurement using stethoscope, the first heard sound (crashing sound) of the…

A: The human heart have four chambers and can be divided into two separate pumping systems, the right…

Q: Which ONE of the following statements is TRUE? OA Cardiac myocyte contraction results primarily from…

A: Given here are some statements . Following I will be discussing which among them is correct and…

Q: What would be the drawback of cardiac contractions being the same duration as skeletal muscle…

A: Introduction: The cardiac muscles are responsible for pumping blood into the blood vessels through…

Q: Describe what the following variables are and how each impacts cardiac output: End diastolic volume,…

A: The amount of blood that the muscular thoracic cavity organ called the heart pumps in a minute…

Q: With endurance athletes, an increased stroke volume at rest will occur because of   Select 3…

A: Stroke volume is defined as the amount of blood that can be pumped out by heart per beat.

Q: What is the easiest way to change blood flow?     change vascular resistance     change blood…

A: Blood flow in the heart has the following steps- Body organs and tissues---- Inferior/superior vena…

Q: Which of the following volumes should be the greatest? end-diastolic volume (EDV) stroke…

A: The cardiac cycle contains two phases, the systole, and the diastole. In the systole phase blood is…

Q: Which of these will increase the heart rate? O sympathetic stimulation of SA node O parasympathetic…

A: The heart has an autorhythmicity trait that allows it to beat without being controlled by the…

Q: On an ECG erratic waves indicates. and is associated with O ventricular fibrillation, second-degree…

A: A human heart is a four-chambered muscular organ that is used to pump blood to different parts of…

Q: Mean arterial pressure is likely to decrease when Oblood viscosity decreases heart rate increases…

A: Mean arterial pressure (MAP) is one of the key indicators of cardiovascular health. It is a measure…

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: Which of the following intervals is most likely to vary when the heart rate changes? QRS complex…

A: Thе intеrval most likely to vary whеn thе hеart ratе changеs is thе P-R sеgmеnt (option A). Thе P-R…

Q: Which of the following does NOT affect blood flow?

A: Ans. In the above given question all affects blood flow.

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: A person’s blood pressure is measured as 110/70 mm Hg. The diastolic pressure is 110 110 is the…

A: Blood pressure is influenced by the contractile activities of the heart and conditions and…

Q: What is occurring during ventricular ejection ? The AV valves are closed and the semilunar valves…

A: Introduction: The human heart is divided broadly into four chambers as follows: The right atrium…

Q: An individual presents with cardiac tamponade.  Their heart would be the most efficient in pumping…

A: cardiac tamponade is a medical condition where there is build up of fuilds in the pericardial sacs.…

Q: The role of calcium currents in cardiac contractile cells is to .  The role of calcium currents in…

A: A neuromuscular junction is a biochemical synapse between muscle fiber and a motor neuron. It…

Q: An increase in which of the following would result in a larger stroke volume ? Group of answer…

A: Stroke volume can be referred to as the total volume of the blood pumped out of the left ventricle…

Q: what is the clinical term for the esffect on heart activity when adrenalin binds to receptors of…

A: Heart plays a major role in the circulatory system with supplying blood to all the different parts…

Q: Main factors that affect stroke volume. preload contractility afterload autonomic nervous system

A: To understand the principles of cardiac stroke volume it is necessary first to define the cardiac…