Cosider the various components of the arterial baroreceptor reflex and predictwhether the following variables will increase or decrease in response to a rise in arterial pressure.a. arterial baroreceptor firing rate (increase)b. parasympathetic activity to the heart (increase)C. sympathetic activity to the heart (decrease)d. arteriolar tone (decrease)e. venous tone (decrease)f. peripheral venous pressure (decrease)g. total peripheral resistance h. cardiac output (decrease)ANSWER IS ALREADY MENTION NEED LITTLE REASON OF ALLPLEASE I GIVE ANSWER ALREADY IN BRACKET BUT IF U GIVE INCOMPLETE SOLUTION LIKE 3SUBPARTS I WILL THUMBS DOWN NEED ALL SUBPARTS OTHERWISE SKIP

A. Increase in arterial pressure incrrses depolarization of sensory nerve ending increasing Arterial…

Answered: Cosider the various components of the…

Biomedical Instrumentation Systems

1st Edition

ISBN:9781133478294

Author:Chatterjee

Publisher:Chatterjee

Chapter7: Instrumentation In Diagnostic Cardiology

Section: Chapter Questions

Problem 3Q

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What effect does sympathetic stimulation have on stroke volume if thevenous return remains constant? Dilation of the coronary blood vesselsoccurs in response to an increased heart rate and stroke volume. Explainthe functional advantage of that effect.
3:33 Cardio 2 Question 3 ... Unanswered Decreasing sympathetic stimulation will A decrease heartrate В increase heartrate C cause vasoconstriction D cause vasodilation E A and D A Submit
cardiac output depend on what two factor a. stroke volume and stroke power b. cardiac rate and cardiac rhythm c. cardiac rate and stroke volume d. blood density and blood volume 2. which is the following is not matched correctly a. musclar ( distributing artieres - mainly made up of smooth muscle ( found in tunica medial ) b. vasa vasorum : small blood vessles that helps in nourishing particularly large arteries and veins c. arterioles - relatively large and thick vessels that controls the flow of blood leaving the heart d. elastic (conducting ) arteries - well supplied with elastin to maintain pressure ) has all 3 tunica
KEY Stimulus Medullary cardiovascular control center Sensory receptor Integrating center Efferent path Effector Change in blood pressure Parasympathetic Carotid and aortic baroreceptors neurons Sympathetic neurons SA node Ventricles Veins Arterioles Copyright 2009 Pearson Education, Inc. 1. In the diagram above, describe the role of the integrating center and two of the effectors. 2. What will atherosclerosis do to the peripheral resistance? 3. What will atherosclerosis do to the heart rate
23. Be able to draw an action potential in a cardiac CONTRACTILE cell. Include the following: ● the time for one AP to occur ● channels open at each part • resting membrane potential • depolarization Membrane Potential (mv) -60 -100 0 100 Time (msec) 200 . • plateau ● first repolarization 300 second repolarization return to resting membrane potential
Which of the following is not true about the resting Cardiac membrane potential? O A. The membrane resting potential is equal to the Nernst potential for potassium. O B. The membrane resting potential has a low sodium conductance. O C. Balanced current flow gives rise to the resting membrane potential. O D. Pumps and exchangers maintain the background electrical gradients. O E. The Nernst potential for sodium is positive to the resting membrane potential.
Which ONE of the following statements is TRUE? OA Cardiac myocyte contraction results primarily from an increased concentration of intracellular Na OB Prazosin is an agonist at a2 adrenergic receptors OC Veins can accommodate large volumes of blood but this causes a large increase in pressure OD The pulse pressure is the addition of systolic and diastolic pressure OE The primary integrating centre for baroreceptor reflexes is the medullary cardiovascular centre
If the PSYN is activated, how will that affect an ECG? O A. The P waves of subsequent cycles will get closer together. OB QRS complexes of subsequent cycles will get further apart. O C. The T waves of subsequent cycles will get further apart. D. B and
In resting state: For a heart that would have a left ventricle of 130 mL of end diastolic volume (EDV) and 60 mL of end systolic volume (ESV) and a heart rate 60 bpm. A. Calculate the output your pump should provide to the aortic arch. (in units of L/min) B. In moderate activity state: If the heart rate is expected to increase by 15% Calculate the output your pump should provide to the aortic arch hibernation levels so they can go back to sleep. A mitochondria-rich tissue called "brown fat" is responsible for this heat-generation.
Purkinje fibersa. are specialized cardiac muscle cells.b. conduct impulses much more slowly than ordinary cardiac muscle.c. conduct action potentials through the atria.d. connect the SA node and the AV node.e. ensure that ventricular contraction starts at the base of the heart.
T waves on an ECG representa. depolarization of the ventricles.b. repolarization of the ventricles.c. depolarization of the atria.d. repolarization of the atria.
For the average healthy human, why is the pulse rate lower immediately upon standing compared the the pulse rate in the reclining position? (Mark all that apply) When reclining, there is a gravitational force working on our body the allows the heart to exert less pressure to pump blood to the head without working against gravity O When we stand up, immediately the pulse rate goes down due to the hearts current state of exerting less force while in the reclining position. O The heart has to work harder against gravity to pump blood to all regions of the body when in the reclining position

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