Electrical signals move through the mammalian heart in a particular order. Which order is correct? A....
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Electrical signals move through the mammalian heart in a particular order. Which order is correct?
A. AV node, SA node, bundle of His, Purkinje fibers
B. bundle of His, Purkinje fibers, AV node, SA node
C. SA node, AV node, Purkinje fibers, bundle of His
D. SA node, AV node, bundle of His, Purkinje fibers
Homework Answers
Answer
Option D is the right answer because Impulse starts from the SA node (pacemaker) and reach the AV node which causes the atrium contraction and then impulse activate the bundle of His which activates the purkinje fiber that controls the ventricle contraction.
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Electrical signals move through the mammalian heart in a
particular order. Which order is correct?
A....
Question 9 (1 point) The correct sequence in the conduction system of the heart is 1)...
Question 9 (1 point) The correct sequence in the conduction system of the heart is 1) Purkinje fibers, AV bundle, bundle branches. 2) AV node, SA node, Purkinje fibers. 3) SA node, AV node, AV bundle, bundle branches, Purkinje fibers. 4) AV node, bundle branches, SA node, Purkinje fibers. Question 10 (1 point) A heart rate below 60 beats per minute is called 1) tachycardia. 2) fibrillation. 3) bradycardia. 4) ectopic.
Questions 27 through 31: Trace the path of excitation through the heart, starting at point of...
Questions 27 through 31: Trace the path of excitation through the heart, starting at point of initiation. Number 27 should be the letter of the structure below that initiates the impulse; Number 31should be the letter of the structure below that last receives the impulse. A. AV node B. SA node C. Purkinje fibers/cells D. left and right bundle branches E. Bundle of His
all 5 please :) 4 3. During the first step of the clotting process, an arteriole...
all 5 please :)
4 3. During the first step of the clotting process, an arteriole will platelets bind to collagen fibers using during the second step, O out Select one: a. vasoconstrict; thromboxane b. vasoconstrict; von Willebrand factor O C. vasodilate; fibrinogen x d. vasodilate; thromboxane 8. Which of these lists the components of the conduction system in the heart in the correct order, from slowest to fastest? Select one: a. Purkinje fibers; AV node; SA node b. SA...
Putting it all together: Use ECG Flat line 5 all together: Use the ECG graph and...
Putting it all together: Use ECG Flat line 5 all together: Use the ECG graph and list of suggestions to fill out the table that links conduction and the cardiac cycle phases with one another. Heart Semilunar Conduction Atria Ventricles Blood Going Cardiac Cycle AV Valves Valves Sounds TO... Late ventricular TNO diastole Atrial systole 2200 node PQ interval Atrial systole Pwave QRS complex Atrial diastole learly ventricular systole Late ventricular systole ST interval Twave Early ventricular diastole Indicate the...
QUESTION 73 Glucose is metabolized aerobically by the muscle in the following order: A. Electron Transport...
QUESTION 73 Glucose is metabolized aerobically by the muscle in the following order: A. Electron Transport → Kreb's Cycle → B-oxidation → Glycolysis B. Glycolysis → Kreb's Cycle – Electron Transport C. B-oxidation - Kreb's Cycle → Electron Transport D. Kreb's Cycle → B-oxidation Electron Transport QUESTION 74 Cardiac rhythm is initiated in the: A. A-V node B. Bundle of HIS C. SA node D. Purkinje fibers
4 50. year old female recieved trauma to the chest that caused severe impairment of the...
4 50. year old female recieved trauma to the chest that caused severe impairment of the primary pacemaker cells of the heart Which of the following areas recieved the greatest damage? a. atrioventricular (AV) node b. sino atrial (SA) nade a. Bundle of His d. Ventricles ear-old male is diagnosed with left bundle branch block. Which Structures would not recieve an electrical impulse? a. Atrioventricular (AV) node b. sinoatrial (SA) Node a bundle of his do the left ventricle 9...
7. Cyclosporine A specifically targets: A) Macrophages B) T cells C) B cells D) Sheep red...
7. Cyclosporine A specifically targets: A) Macrophages B) T cells C) B cells D) Sheep red blood cells 8. Which of the following is NOT an important mechanism for removing particulate matter from the lungs? A) blowing your nose B) swallowing C) phagocytosis by macrophages D) lymphatic removal 9. Inhaled anesthetics typically have a low solubility ratio. What will primarily determine the rate of transfer of these compounds into the bloodstream following inhalation? A) charge B) blood flow through the...
c conduction system coordinates contraction of the The intrinsic chamb ers by setting the direction and...
c conduction system coordinates contraction of the The intrinsic chamb ers by setting the direction and speed of in the intrinsic conduction system, the normal function of the With AV node is to Within the intrinsic conduction system, the function of the AV bundle is to Within the intrinsic conduction system, the function of the Purkinje fibers is to 4. A heartbeat involves action potentials from the specialized cells of the intrinsic conduction system spreading to 5. 6. In a...
2. Name the three layers that make up the heart wall. 3. Of the two ventricles,...
2. Name the three layers that make up the heart wall. 3. Of the two ventricles, which is more muscular? How does this difference correlate with its function? 57 4. Name the structures through which the blood flows in the following diagram: aorta, aortie semilunar valve, bicuspid valve,L. atrium, L. ventricle, pulmonary arteries, pulmonary semilunar valve, pulmonary trunk, pulmonary veins, R. ventricle, tricuspid valve, and vena cavae R. Atrium Heart chambers Heart valves Body cells Blood vessels Lungs 5. What...
19 The causes o 20 21 22 which type of dressing absorbs excess fluid from the...
19 The causes o 20 21 22 which type of dressing absorbs excess fluid from the wound a. Primary b. Secondary c. Tertiary d. simple The causes of heat production include all of the following except a. exercise b. shivering - C. perspiration d. metabolism During the initial screening of ming the initial screening of the patient, the medical assistant observes a. appearance b. gait c. odor d. all of the above The equipment used to he equipment used to...
Question 9 (1 point) The correct sequence in the conduction system of the heart is 1) Purkinje fibers, AV bundle, bundle branches. 2) AV node, SA node, Purkinje fibers. 3) SA node, AV node, AV bundle, bundle branches, Purkinje fibers. 4) AV node, bundle branches, SA node, Purkinje fibers. Question 10 (1 point) A heart rate below 60 beats per minute is called 1) tachycardia. 2) fibrillation. 3) bradycardia. 4) ectopic.
Questions 27 through 31: Trace the path of excitation through the heart, starting at point of initiation. Number 27 should be the letter of the structure below that initiates the impulse; Number 31should be the letter of the structure below that last receives the impulse. A. AV node B. SA node C. Purkinje fibers/cells D. left and right bundle branches E. Bundle of His
all 5 please :)
4 3. During the first step of the clotting process, an arteriole will platelets bind to collagen fibers using during the second step, O out Select one: a. vasoconstrict; thromboxane b. vasoconstrict; von Willebrand factor O C. vasodilate; fibrinogen x d. vasodilate; thromboxane 8. Which of these lists the components of the conduction system in the heart in the correct order, from slowest to fastest? Select one: a. Purkinje fibers; AV node; SA node b. SA...
Putting it all together: Use ECG Flat line 5 all together: Use the ECG graph and list of suggestions to fill out the table that links conduction and the cardiac cycle phases with one another. Heart Semilunar Conduction Atria Ventricles Blood Going Cardiac Cycle AV Valves Valves Sounds TO... Late ventricular TNO diastole Atrial systole 2200 node PQ interval Atrial systole Pwave QRS complex Atrial diastole learly ventricular systole Late ventricular systole ST interval Twave Early ventricular diastole Indicate the...
QUESTION 73 Glucose is metabolized aerobically by the muscle in the following order: A. Electron Transport → Kreb's Cycle → B-oxidation → Glycolysis B. Glycolysis → Kreb's Cycle – Electron Transport C. B-oxidation - Kreb's Cycle → Electron Transport D. Kreb's Cycle → B-oxidation Electron Transport QUESTION 74 Cardiac rhythm is initiated in the: A. A-V node B. Bundle of HIS C. SA node D. Purkinje fibers
4 50. year old female recieved trauma to the chest that caused severe impairment of the primary pacemaker cells of the heart Which of the following areas recieved the greatest damage? a. atrioventricular (AV) node b. sino atrial (SA) nade a. Bundle of His d. Ventricles ear-old male is diagnosed with left bundle branch block. Which Structures would not recieve an electrical impulse? a. Atrioventricular (AV) node b. sinoatrial (SA) Node a bundle of his do the left ventricle 9...
c conduction system coordinates contraction of the The intrinsic chamb ers by setting the direction and speed of in the intrinsic conduction system, the normal function of the With AV node is to Within the intrinsic conduction system, the function of the AV bundle is to Within the intrinsic conduction system, the function of the Purkinje fibers is to 4. A heartbeat involves action potentials from the specialized cells of the intrinsic conduction system spreading to 5. 6. In a...
2. Name the three layers that make up the heart wall. 3. Of the two ventricles, which is more muscular? How does this difference correlate with its function? 57 4. Name the structures through which the blood flows in the following diagram: aorta, aortie semilunar valve, bicuspid valve,L. atrium, L. ventricle, pulmonary arteries, pulmonary semilunar valve, pulmonary trunk, pulmonary veins, R. ventricle, tricuspid valve, and vena cavae R. Atrium Heart chambers Heart valves Body cells Blood vessels Lungs 5. What...
19 The causes o 20 21 22 which type of dressing absorbs excess fluid from the wound a. Primary b. Secondary c. Tertiary d. simple The causes of heat production include all of the following except a. exercise b. shivering - C. perspiration d. metabolism During the initial screening of ming the initial screening of the patient, the medical assistant observes a. appearance b. gait c. odor d. all of the above The equipment used to he equipment used to...
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