QUESTION 5 The event that CLOSES the AV valves is: Atrial systole Atrial diastole Ventricular systole Ventricular diastole

Q: True or False? With age, the walls of the arteries become more elastic, making it harder to maintain…

A: Arteries are the blood vessels that carry  blood away from the heart. Its walls are quite elastic.…

Q: Lub/b sound is produced by the closure of the valves.

A: Heart is the muscular organ and is the main part of the circulatory or cardiovascular system. Heart…

Q: space, or structure associated with the heart based on the descriptions below. Some choices may be…

A: The heart is divided into two parts, each part containing a atrium and a ventricle. The four…

Q: Given tubes of equal length and diameter (and the inflow / outfow pressures below), which will have…

A: Blood flow is a pulse wave that moves out from the blood vessels. The flow of blood through the…

Q: Question 7. In the ECG strip below, which arrhythmia is present? the aVR II II II 13 A. Premature…

A: The heart is a muscular organ the size of a fist that sits directly behind and somewhat to the left…

Q: Which chamber of the heart forms the base? Left atrium O Right ventricle O Right atrium O Left…

A: In the human anatomy, the heart is considered a muscular organ located in front and middle of the…

Q: Why do peripheral arteries lack the valves that are commonly present in peripheral veins?…

A: Heart is the principal organ of the circulatory system. Heart pumps blood and keeps it flowing…

Q: What is their function?

A: The papillary muscles are elongated, tapered muscles in the inner wall of the ventricles giving rise…

Q: Which of the following occurs during diastole?   Question 25 options:   The semi-lunar valves are…

A: Heart consists of four chambers, two auricles and two ventricles. Blood is received by the auricles…

Q: The pressure when first sound appear is an indication of O systolic pressure. O diastolic pressure.…

A: Korotkoff sounds, invented by Dr. Nikolai Korotkoff, in 1905, are sounds that doctors tune in for…

Q: e arrhythmias w

A: An arrhythmia is a problem with the rate or rhythm of your heartbeat. It means that your heart beats…

Q: od pressure using a blood pressure cuff on yo

A: Blood pressure is measured in mm Hg, normal blood pressure of an healthy adult is systolic pressure…

Q: Question 12 Stimulation of the Vagus nerve will: O A. Slow AV conduction velocity. OB. Slow heart…

A: One of the cranial nerves in the human body, specifically the tenth cranial nerve (CN X), is the…

Q: QUESTION 23 Which of the following statements is correct, given the following pressure measurements:…

A: The pressure of: aorta is 100mm Hg Left atrium is 40 mm Hg Left ventricle is 120 mmHg The blood…

Q: 2. An atrial septal defect is a birth defect in which there is an opening in the septum between the…

A: Introduction The cause of an atrioventricular septal defect is unknown. An atrial septal defect is a…

Q: Question 24 Which of the following tissues functions to filter blood with sheathed capillaries? O…

A: The spleen is the biggest secondary immune member in the body and is accountable for inaugurating…

Q: QUESTION 4 The event that OPENS the semilunar valves is: Atrial systole Atrial diastole Ventricular…

A: Introduction :- The semilunar valves are pocket-like structures attached at the point where the…

Q: Why do cardiac muscle fibers have a long re O To allow time for blood filling Refractory period is…

A: The heart is considered a muscular organ located front and middle of the chest region. It is made up…

Q: An EKG of Venritcular Tachycardia shows: OA. A slowed heart rate. O B. A QRS complex followed by a T…

A: EKG or the Electrocardiogram is a medical diagnostic test used to monitor and assess the electrical…

Q: Question: 1. Ventricular fibrillation For this disease pathology, please provide the following…

A: Ventricular arrhythmia It is a condition characterized by an abnormal heartbeat initiated from the…

Q: We are looking at an image taken of an actively pumping heart. We can see that top half of the heart…

A: The heart is the organ responsible for pumping blood to all the parts of the body. It is a muscular…

Q: Put the statements in the correct sequence. Beginning with atrial filling. * gas exchange takes…

A: The circulatory system is comprised of the heart, blood, and blood vessels that help in the…

Q: Which of the following would transport oxygen rich blood? O venules O capillaries O aorta O…

A: The body uses oxygen for cellular respiration and gives out carbon dioxide  The blood is responsible…

Q: Identify the bundle of His O under the left ventricles O between the right and left ventricles of…

A: "The bundle of His" is an important part of the electrical conduction system of the heart. It…

Q: Question 9 Smooth muscle is responsible for vasoconstriction. True False

A: Cells are the basic structural and functional unit of all known organisms which help in the process…

Q: QUESTION 7 The P wave of an ECG corresponds to__. repolarization of the atria the progressive wave…

A: The electrical currents created by depolarization and repolarization extend over the heart and the…

Q: What is a difference in membrane potential in the auto-rhythmic vs contractile cardiomyocyte auto:…

A: Cardiomyocytes are the terminally differentiated cells that are contractile in nature and are…

Q: Please answer fast Xena is chewing some plant to get some energy. Some of the plants where Xena…

A: There are four types of nodal tissues found in our heart which are responsible for generating action…

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

A: Given: The heart is a muscular organ which is as big as our fist.It is located between the lungs in…

Q: At the point labeled E the 120 В Aortic pressure 60 A DE Atrial pressure Ventricular pressure O…

A: The heart is divided into left and right sides separated by a septum. Both the sides are divided…

Q: 5. Would defibrillation be recommended for someone producing this electrocardiogram? yes no

A: Electrocardiogram(ECG or EKG) is a medical test that is used in recording the electrical signals…

Q: With a defect in the ventricular wall, which part of the cardiac conduction system might be…

A: Question 9 The cardiac conduction system is the electrical system of the heart that is responsible…

Q: Question 40 Korotkoff sounds are good because they indicate: OA. Regurgitation from the ventricle…

A: The sounds distinguished by the stethoscope in the auscultatory blood pressure estimation, known as…

Q: QUESTION 1 Which of the following types of blood vessels may have smooth muscle in their walls?…

A: The circulatory system is mainly comprised of five forms of blood vessels. These forms include…

Q: Read and analyze the statements below: 1. Pectinate muscles and trabeculae carnae are muscular…

A: The heart is the muscular organ, which pumps the blood throughout the body through the circulatory…

Q: Question 9 Smooth muscle is responsible for vasoconstriction. True False

A: Introduction :- Smooth muscle has a non-striated pattern because it is made up of thick and thin…

Q: Which ECG component represents peak systole? O S-T segment O P-R interval O P-R segment

A: In electrocardiogram (ECG) beginning of ventricular systole is marked by deflection of QRS complex.…

Q: Bradycardia is all of the following except A. A heart rate of 60 beats or less B. Due to increased…

A: The cardiovascular system is a very important organ system in that it helps in the circulation of…

Q: rdia is all of the following except A. A heart rate of 60 beats or less B. Due to increased…

A: As we know The cardiovascular system is a very important organ system in that it helps in the…

Q: Question 42 he right margin of the heart is mainly composed of the: right atrium Oright ventricle…

A: The human heart is a mesodermally derived organ located between the lungs in the thoracic cavity. It…

Q: Question 24 Which of the following is not true for conduction of the cardiac impulse? O A. Action…

A: Cardiac conduction system conveys the signal to begin a heartbeat. It likewise conveys messages that…

Q: Please help True or False

A: Cells are the basic structural and functional unit of all known organisms which help in the process…

Q: Which of the following statements concerning red blood cells is FALSE erythrocytes are formed as…

A: The cardiovascular system is the main organ system in the body. The blood vessels, heart makes up…

Muscle Action

A change in the body or a bodily organ as a result of its functioning is referred to as an action. Muscle action can be defined as the specific movement of a bodily part generated by the contraction of a muscle. The muscle proteins actin and myosin are the important contractile proteins involved in muscle action. Muscle contraction, in addition to movement, serves several other important functions in the body, including posture, heat generation, and joint stability. Muscle contraction maintains posture, which includes standing and sitting.