Which of the following will cause an increase in EDV? A increased venous return В stronger atrial contraction C increased ventricular contractility D all of the above E A and B

Q: QUESTION 4 In the presence of ventricular septal defects, a left-to-right cardiac shunt indicates…

A: During fetal stages, the heart develops from a large tube which then divides into different…

Q: Which of the following statements is WRONG about Veins

A: correct answer a. They Vasoconstrict on sudden standing up    Reason: because this is mainly occurs…

Q: Absent "P" waves in a junctional arrhythmia indicate: O A. Retrograde atrial deplorization occurs at…

A: In a normal sinus rhythm the electrical impulse startsin the sinoatrial node. which formulates P…

Q: In hypothyroidism the cardiac system presents as follows:A. Decrease of ECG voltageB. Increase of…

A: Thyroid is an endocrine gland that releases the thyroid hormones, which is important for different…

Q: 33. In a blood pressure measurement of 110/70, the number 70 is the ________. a. systolic pressure…

A: Blood pressure is The force that move blood through The circulatory system.

Q: Extreme increase in the heart rate can cause a decrease in the CO if ventricular filling is…

A: The amount of blood the heart pumps per minute is known as cardiac output, and it is measured by…

Q: As conditions change from the arterial to the venous end of systemic capillaries, what happens to…

A: Introduction: The hemoglobin combines with oxygen and makes oxyhemoglobin and is represented as…

Q: 45. Which of the following is/are true concerning the opening and closing of thecardiac valves?   A.…

A: The valves of the heart maintain undirectional flow of the blood and prevent its regurgitation in…

Q: Which of the following is a factor associated with hypertension? a. Decreased cardiac output b.…

A: Hypertension is a disease characterized by the increase in blood pressure above 140/ 90 mm Hg.

Q: In the Sino-Atrial Node which is not true? O A. Shows spontaneous (oscillatory) electrical behavior.…

A: The SA node, which is commonly known as the pacemaker is a half moon like cluster of  myocytes…

Q: Left ventricular output is generally the same as right ventricular output. If right ventricular…

A: On an average, 70 ml of blood is pumped every beat (stroke volume) and about 5000 ml every minute…

Q: As conditions change from the arterial to the venous end of systemic capillaries, what happens to…

A: There are three types of blood vessels. They are arteries, veins and capillaries. Usually more…

Q: During the depolarization phase of the pacemaker potential O a. Ca+2 permeability increases O b. Na+…

A:

Q: a) Match the regions (Red, Green, Blue) with the functiontions. A. Contraction of the atria B.…

A: An ECG, which stands for electrocardiogram, is a diagnostic tool that records the electrical…

Q: 1.  which of the following structutre controls heart rate monitoring conceratration of co2 and o2 ?…

A: Since you have posted multiple we will solve the first question for you. If you want the specific…

Q: The isovolumetric contraction in ventricles appears:

A: Isovolumetric contraction in general means that although contraction takes place in the ventricles,…

Q: 1. Which phase of Ventricular Filling increases the volume of blood in the ventricles the most?…

A: The heart is a pump that transports blood through a network of arteries. Its function is to send…

Q: Which of the following about blood pressure information is false? Lütfen birini seçin: O a. The…

A: Blood pressure is the force of the blood against the blood vessels wall.It described in two…

Q: 6. During which part of the EKG does each event occur? (Be as specific as possible.) Use this…

A: Electrical currents that may be measured at the skin's surface are created by action potentials that…

Q: A person with a systolic blood pressureof 130 mm Hg and a diastolic pressureof 85 mm Hg would have a…

A: Mean arterial pressure is the average blood pressure in the arteries of a person during one cardiac…

Q: If the S-A node discharges at 0.00 seconds, when will the action potential arrive at ventricular…

A: The objective of this question is to determine the time it takes for an action potential to travel…

Q: The pausing of electrical conduction at the AV node is critical to heart function because O ATP…

A: AV mode, also known as atrioventricular mode, refers to the electrical conduction pathway that…

Q: Which point on the PV loop corresponds to the opening and closing, respectively of the aortic valve?…

A: Introduction :  PV loop derived from pressure and volume data found from cardiac cycle. If left…

Q: ne symptom of right ventricular failure would be _____.   A difficulty breathing when lying in the…

A: The right ventricle moves deoxygenated blood from the heart back to the lungs to be resupplied with…

Q: 22. Define Ventricular Fibrillation. Describe what is happening electrically during VF.

A: Dysrhythmias Cardiac dysrhythmia is associated with abnormal electrical impulse conduction…

Q: An arrhythmia originating in an escape pacemaker in the AV junction with a rate of 40 to 60 beats…

A: Arrhythmia is an abnormality or irregularity in the rhythm, rate, or sequence of the heartbeat.…

Q: Which is not true of Re-entrant Arrhythmias OA. Occurs when there is a "loop" of self excitation. B.…

A: An electrical impulse in the heart that follows a circular course, or re-entrant circuit as opposed…

Q: What is the cardiac output of a heart when the heartbeat rate is 60 beat.min-1, the diastolic…

A: Cardiac output: Amount of blood pumped by the heart per minute  Strove volume :  amount of blood…

Q: 3. In chest X-Ray PA view, right border of cardiac shadow is formed by which structure? L a. Left…

A: The objective of the question is to identify the anatomical structure that forms the right border of…

Q: Sinuatrial node (SA) is the pacemaker of the heart because: O a. It has the largest rate of activity…

A: The SA node generates maximum number of action potentials per minute helping in setting the pace of…

Q: Which of the following is true of blood velocity? Y X +0 ARTERIOLE CAPILLARY NETW VENULE

A: The blood flows throughout the body by the help of different blood vessels that connect the entire…

Q: 25. The ECG changes due to hypokalemia is? a. Tall peaked T wave b. Prominent U wave c. ST segment…

A: Hypokalemia is a medical condition characterized by lower-than-normal levels of potassium in the…

Q: Cardiac output is: A. The volume of blood pumped over a period of time. OB. The stroke volume times…

A: The cardiovascular system is a crucial component of the circulatory system in humans (which is often…

Q: This (labeled green) system of arterio-arterial anastamoses is called?

A: Brain is the major and central organ of the nervous system of our body. It plays crucial role in…

Q: 12. A true statement concerning conduction in first-degree AV block is that: O it results from…

A: We know that An electrocardiogram can be defined as the test, which is used to measure the…

Q: The Frank-Starling Law says that stroke volume a. is constant b. increases with deceased blood…

A: Stroke volume refers to the amount of blood ejected by the left ventricle of the heart in a single…

Q: During atrial fibrillation: A. The EKG shows an exaggerated P wave. OB. There is a noticeable…

A: Human heart consists of four chambers: two atria and two ventricles. The left atria receive…

Q: The pco2 in the aorta is  a 40mmhg b 46mmHg c 100 mmHg

A: The partial pressure can be described as the amount of gas present in a mixture of substance and the…

Q: In ventricular fibrillation, there is no pattern visible in the EKG. What does this mean in terms of…

A: Venticular fibrillation produces irregular electrical signals in the muscles of the ventricles .

Q: Can you get the pulse pressure and mean arterial pressure by the following blood pressure. The one…

A: The difference between the systolic and diastolic blood pressure is the pulse pressure. It is…