bbhosted.cuny.edu/webapps/assessment/take/launch.jsp?course_assessment_id=_22Question Completion Status:QUESTION 13Calcium channel blockers block calcium ion channels in the sarcolemma of cardion entry into the cell during an action potential. These drugs willcontractility of cardiac muscle.endecreaseQUESTION 14Pulmonary trunk is pointing to the left anterior of the heart.TrueFalseQUESTION 15The muscle fibers of cardiac muscle are electrically coupled bycan control the activity of several muscle fibers. (enter two words with

The heart is the central organ of the cardiovascular system of the body. It is myogenic in nature…

Answered: QUESTION 13 Calcium channel blockers…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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Question 1 You are late to class, which is on the 12th floor of the Medical Technology building. After running up 10 flights of stairs you are fatigued, out of breath, your legs are beginning to cramp and cannot take another step. Within the scope of this class, please explain what is happening.
QUESTION 9 The semilunar (V-a) valves prevent blood flow from: O artery to ventricle ventricle to atrium O ventricle to artery O atrium to ventricle QUESTION 10 Which types of muscle can be inhibited? O only smooth muscle O smooth and cardiac O only skeletal muscle O smooth, cardiac, and skeletal O none of them O only cardiac muscle
Question 40 Korotkoff sounds are good because they indicate: O A. Regurgitation from the ventricle into the atrium through a faulty mitral valve. OB. Backflow through the tricuspid valve. O C. Turbulence in a malformed aortic arch. OD. All of the above. OE. None of the above. BAROSS
QUESTION 1 Which of the following tissues would receive less blood flow during exercise: Brain Skeletal muscles Kidneys Skin All tissues receive more blood during exercise OO O O O
Question 2 The function of erythropoietin is to stimulate the production of O Plasma O RB O Platelets O WBC
QUESTION 7 The first heart sound is due to the: O closing of the atrioventricular valves closing of the semilunar (V-a) valves O opening of the atrioventricular valves O opening of the semilunar (V-a) valves O QUESTION 8 Which muscle types are innervated by motor neurons? O smootoh and cardiac O only smooth O cardiac and skeletal O only skeletal O smooth, cardiac, and skeletal O smooth and skeletal O only cardiac
QUESTION 10 In Part III of the case study, it is mentioned that blood flow to the pulmonary capillaries is increased due to the inflammation and bacteria present in the area. What is the most likely reason for the increased blood flow? a. Increased cardiac output b. Pulmonary arteriole vasoconstriction caused by the sympathetic division c. Pulmonary arteriole vasodilation caused by the sympathetic division d. Pulmonary arteriole vasodilation caused by paracrine signals e. Decrease venous pressure Part I – SymptomsCallie was 26 years old when she opened a bakery called “Callie’s Cupcakes” in downtown San Francisco with herf ancé, Jeremy. Despite the competitive market, her business was booming; everyone loved the clever recipes and thetrendy atmosphere. Between running their fast-growing business and planning for their wedding, Callie hadn’t beenable to keep to her usual eight hours of sleep a night. Although she had always lived a very…
QUESTION 38 Phase C of the ventricular action potential is due to which of the following? B -50 A -100 0.15 0.30 Time (s) Na* influx through F-type pacemaker channels Na* influx through voltage-gated channels Ca2+ influx O k* influx through voltage-gated channels Membrane potential (mV)
Question 42 1 pts The right margin of the heart is mainly composed of the: right atrium right ventricle left ventricie O left atrium
QUESTION 5 The event that CLOSES the AV valves is: Atrial systole O Atrial diastole Ventricular systole Ventricular diastole
Question 12 0/1 pts A patient with a hemothorax and hemoglobin of 8 mg/dL is to have an autotransfusion of chest tube drainage. Which of the following would be a contraindication? You Answered A low hemoglobin level. Correct Answer An autotransfusion system (ATS) bag used for collection of chest tube drainage. Collected blood in the chest drain for 8 hours. Chest tube drainage collecting at a rate of 100 mL/hr. Collected blood never remains in the chest drain or ATS blood bag for more than 6 hours before autotransfusion. A low hemoglobin level is an indication for need of a blood transfusion or autotransfusion of chest tube drainage. Blood loss of 50 to 100 mL/hr through a chest tube indicates active bleeding and is an indication for reinfusion of chest tube drainage. An ATS bag should be used for collection of chest tube drainage because it contains a filter to remove extraneous materials and microemboli.
QUESTION 3 Arterioles are composed of Endothelial cells and smooth muscle only Endothelial cells, elastic tissue, and fibrous tissue only Endothelial cells, elastic tissue, and smooth muscle only Endothelial cells, elastic tissue, smooth muscle, and fibrous tissue Elastic tissue and smooth muscle only

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