Screen Shot 2023-12-17 at 2

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 1 Which of the following tissues are considered part of the cardiovascular system? Select ALL correct answers: Blood O The heart O Arteries O Lymphatic vessels O Veins

QUESTION 6 Using the figure below and given that the resistance in vessels A and B are equal, which of the following statements is correct? P, A P2 P = 100 mmHg P2 = 10 mmHg %3D P1 B P2 P, = 500 mmHg P2 = 410 mmHg Blood flow rate is equal in vessels A and B Blood flow rate is greater in vessel B as compared to vessel A Blood flow only occurs in vessel B due to the high pressures Blood flow will occur from P2 to P1 in vessel A

Question 2 Which of the following does NOT empty into the right atrium of the heart? pulmonary vein O superior vena cava O inferior vena cava coronary sinus

Question 10 (1 point) Which of the following is FALSE regarding heart anatomy (as learned in the video of the sheep heart dissection)? the left ventricular wall is thicker than the right ventricular wall there are 4 chambers in the heart, including 2 atria and 2 ventricles the myocardium is the thickest of the heart layers the interventricular septum separates the upper atria from the lower ventricles 29 tv 24 & 3. 5 9 E Y G H. J K C V N M V * 00 B F.

T/F question Sphincter muscles are a ring of muscle around a tubular organ. Muscle fibers are made up of actin and myosin protein. When muscle fibers contract, they shorten in length. Heart ventricles receive blood from the body. The pulmonary heart circuit distributes blood to the arms and legs.

QUESTION 8 Which sequence is correct regarding the direction of blood filow through the cardiovascular system: O Aorta, pulmonary artery, vena cava, pulmonary vein O Aorta, carotid artery, pulmonary vein, pulmonary artery O Pulmonary vein, pulmonary artery, aorta, Vena cava O Aorta, pulmonary vein, tricuspid valve, left ventricle O Aorta, Vena cava, tricuspid valve, right ventricle

Question 12 of 17 After leaving our left ventricle, blood next passes through the Select the correct response: atrioventricular valve. aorta. vena cava. left atrium. semilunar valve.

Question 54 A heart murmur results from damage to resulting in O the atrioventricular valves; backflow of blood in the aorta O the aoritic semilunar valves; accumulation of blood in the aorta O the right atrium; cell death coronary arteries; cell death Exam #3 Lecture S...pdf Open file

QUESTION 1 Which of the following types of blood vessels may have smooth muscle in their walls? Select ALL correct answers: Veins Venules Capillaries Arteries Arterioles D0000

Question 6 of 17 It ensures a unidirectional flow of blood between the left ventricle and its associated artery. Select the correct response: Atrioventricular valve Aortic valve Tricuspid valve Semilunar valve Bicuspid valve

Dysrhythmia - Basic A Question 4 of 35 What is the cardiac rhythm? II 3 wh Sinus tachycardia Atrial fibrillation Atrial flutter Normal sinus rhythm Continue whichit Time Remaining whihihih Jones and Bartlett Publishers, 2012 Used with Permission

QUESTION 4 When measuring blood pressure using a sphygmomanometer, the tapping sound will stop when: Cuff pressure is higher than systolic pressure Cuff pressure is lower than systolic pressure Cuff pressure is higher than diastolic pressure Cuff pressure is lower than diastolic pressure

Question 26 Which is true of the Baroreceptor response. A. Has mechano-sensors in the carotid sinus. O B. Regulates blood pressure during postural changes via the parasympathetic pathway. OC. Has mechano-sensors in the aorta. O D. Alters heart rate quickly with a stronger response to changes in pressure compared to steady-state absolute pressure. OE. All are true.

Question 12 2 Stimulation of the Vagus nerve will: O A. Slow AV conduction velocity. OB. Slow heart rate. O C. Increase the delay between atrial and ventricular excitation. OD. All of the above. O E. None of the above.

QUESTION 10 Which types of muscle can be inhibited? only smooth muscle O smooth and cardiac only skeletal muscle smooth, cardiac, and skeletal none of them only cardiac muscle

QUESTION 5 Which of the following statements about venous blood pressure are true? Select ALL correct answers: Pressure in veins is much lower than pressure in arteries Arterial blood pressure fluctuates as the heart squeezes and relaxes, but venous blood pressure does not Valves in veins help prevent blood from flowing backward O Contraction of skeletal muscles in the legs helps move venous blood back up towards the heart D000

QUESTION 2 Which of the following are ways that substances can pass into or out of capillaries? Select ALL correct answers. Moving between capillary wall cells Moving through holes in capillary wall cells Bulk transport through capillary wall cells Simple diffusion through capillary wall cells

QUESTION 1 The main pacemaker area of the heart is the: Bundle branches AV node SA node O Purkinje fibers

QUESTION 11 Which of the following explains why blood pressure is lower in a child than in an adult? O viscosity increases as we age O blood vessel radius increases as we age O the heart contractility is higher in children than adults O blood vessel length is much shorter in children than adults O children have more widespread vasoconstriction than adults

Question 2 The pressure when first sound appear is an indication of O systolic pressure. O diastolic pressure. mean atrial pressure. O pulse pressure.

Please I need help understanding this question, I'm not sure if I'm understanding it right.

Question 33 Which of the following is the THICKEST? ORight ventricle endocardium Right atrial epicardium Right atrial myocardium Left ventricular endocardium

Question 14 of 17 Read and analyze the statements below: 1. The body contains four types of capillaries. 2. Fenestrated capillaries are the most common type found in the central nervous system, muscle tissues, lungs, spleen, and skin. Select the correct response: Only statement 1 is correct. Only statement 2 is correct. Both statements are correct. Neither of the given statements is correct.

question 1: Which of the following prevents the formation of a platelet plug?  nitric oxide will or will not? ADP   will or will not? prostacyclin  will or will not? thromboxane A2   will or will not? question 2: In skeletal muscle, ATP allows__________. Group of answer choices myosin to bind to tropomyosin myosin to move troponin myosin to form a crossbridge myosin to detach from actin question 3: Excitation-contraction coupling in smooth muscle contains which of the following steps? Group of answer choices question 4: high amounts of calcium being released from the sarcoplasmic reticulum low amounts of calcium entering the cell from the extracellular fluid calcium binding to calmodulin calcium binding to troponin question 5 __________ allows for independent regulation of the flow of blood. Group of answer choices portal circulation series blood flow parallel blood flow lymphatic circulation question 6 Which of the following supplies cardiac cell with…

Question 7 Which of the following occurs to break up a clot after a vessel has healed? tissue plasminogen activator inhibtor, inhibits fibrin so the fibrin mesh can break dow O tissue plasminogen activator converts plasminogen into plasmin to induce fibrinolysis O Platelet-derived growth factor converts febrin into fibrinogen which breaks up the clo none of the above are true

QUESTION 8 What causes hemorrhoids? O tiny capillaries in the eye that burst from excessive pressure O leaky heart valves that cause mild murmurs O loss of elasticity in the muscular arteries due to plaque build up leaky valves in the veins that allow backflow of blood O rupture of artery walls, often in the aorta

Question 29 Incorrect Which blood vessel is highlighted? Orenal vein cortical radiate artery O renal artery interlobar artery

Question 9 of 17 Read and analyze the statements below: 1. Pectinate muscles and trabeculae carnae are muscular ridges on the walls of the ventricles. 2. Right and left ventricles are separated by the interventricular septum externally and by anterior and posterior coronary sulci, internally. Select the correct response: O Only statement 1 is correct. Only statement 2 is correct. Both statements are correct. Neither of the given statements is correct.