Fill in the blank:  The first sound of a cardiac cycle occurs when the _______________________ are closing.

Q: Unlike skeletal and smooth muscle tissue, cardiac muscle is “self-excitable”. Explain how this…

A: There are three major types of muscles. They are skeletal muscles, smooth muscles, and cardiac…

Q: Given these events, the correct sequence of the cardiac cycle is: i. Atrial diastole ii. Atrial…

A: In the cardiac cycle, diastole means that the heart chamber is filled with blood received from the…

Q: Which structure is labelled "H' questions. Aorta Black arrows indicate direction of blood flow Blue…

A: H   =   Cardiac muscle   A = superior Vena Cava B=  Aorta C  = Right pulmonary artery        ,…

Q: Which of the following contains blood with a relatively high oxygen content? Group of answer…

A: Circulatory system is one of body system  that mainly comprises of :-  1 ) Heart  2 ) Blood  3 )…

Q: During the systolic phase of the cardiac cycle, the heart is ________. a. contracting b. relaxing c.…

A: The heart is a pumping organ that provisions or supplies all tissues and organs of the body with…

Q: Choose the best answer Blood moving from the left atrium to the left ventricle passesthrough which…

A: Heart is the main organ pumping blood. Heart is myogenic meaning it is capable of auto excitation.…

Q: Looking at the wiggers diagram Which of the letters A-F would be the point when semilunar valves…

A: The stress exerted by pumping blood on the artery walls is called blood pressure. Blood pressure is…

Q: Which of these is an incorrect statement concerning the heartbeat?a. The atria contract at the same…

A: The heartbeat has two parts, systole when the heart contracts and pumps blood and diastole when the…

Q: The cardiac cycle consists of a distinct relaxation andcontraction phase. Which term is typically…

A: The cardiac cycle is the process of contraction and relaxation of the heart. The primary function of…

Q: The cardiac conduction system includes all of the following except:- a. the SA node. b. the AV node.…

A: Cardiac conduction system is made up of various muscles which send signals to the cardiac muscles…

Q: a. Ventricular diastole b. Throughout the cardiac cycle c. Between cardiac cycles  d. Ventricular…

A: Heart It is the main component of the circulatory system. It pumps the blood to various parts of the…

Q: Choose the best answer Which of the following lists the events of the cardiac cycle in thecorrect…

A: The cardiac cycle comprises of the phases of heart activities through a complete heartbeat, that is,…

Q: Name the sound produced when the atrioventricular valves close the heart.

A: The heart has four chambers through which the blood flows when the cardiac valves open and close…

Q: Describe the events that occur during one cardiac cycle.

A: The cardiac cycle is a process that occurs in the heart. The process refers to the event that takes…

Q: Describe the cardiac cycle, and explain why heart valves open in onlyone direction.

A: Human heart is the Center for regulating blood across the body. It is made up of cardiac Muscles…

Q: corresponds to: A. Right ventricle B. Left Atrium  C. Right Atrium D. Left ventricle

A: Left atrium is the upper right chamber of heart .

Q: The lower chambers of the heart that contract to push blood out of the heart are called ___.

A: Heart is a muscular organ that pumps blood throughout the body.

Q: The T wave represents: a. Depolarization of the ventricles b. Repolarization of the atria c.…

A: ECG (Electrocardiogram) can be outlined as the graph which represents the electrical activity of the…

Q: The death of cardiac tissue from lack of blood flow is commonly known as a heart attack, but…

A: Every muscle and tissue of our body needs oxygen for its survival, so as your heart muscles. A heart…

Q: Structures in order as it relates to the pathway of blood flow through the heart/body after is…

A: The oxygenated blood from the lungs are sent to the heart via Pulmonary Vein which drains the whole…

Q: What changes in cardiac function might you expect after surgical replacement of a defective heart…

A: The mammalian heart is a four chambered muscular organ with valves. The valve between the right…

Q: A child has chronic strep throat. If this condition is not treated, what heart disease can occur?…

A: The respiratory system is a network of tissues and organs that help an organism to breathe. In…

Q: During the systolic phase of the cardiac cycle, the heart is

A: The cardiovascular system, also referred to as the circulatory system or the system, is an organ…

Q: In 500 to 750 words, identify and describe the structure and function of the heart, how the cardiac…

A: The heart is a muscular organ which is a fist shaped organ. It is a primary pumping organ which…

Q: Describe one cardiac cycle, beginning with both atriaand ventricles relaxed

A: Animal physiology is the systematic study of the supporting features, roles, and processes of…

Q: The lining of the heart chambers is called the __________.   A endocardium   B myocardium   C…

A: The heart is the muscular organ that pumps blood throughout the body. It is made of cardiac muscle.…

Q: The heart is within the

A: The muscular organ called the heart is responsible for transporting blood to the various body…

Q: Blood flows through the vessels references in the above image during:

A: Heart  It is the main blood pumping organ of the body as it is formed of Cardiac muscles. There are…

Q: Another patient had an abnormal heart sound that indicated a stenotic valve. Define this condition,…

A: Heart murmurs are the most frequent types of abnormal cardiac sounds that are identified by blowing…

Q: Which heart sound is longer in duration and louder, the first or the second heart sound. Briefly…

A: In the heart, sounds are produced by the flowing blood through the heart chamber. When blood flow…

Q: Which of the following cardiac tissues has the most rapid conduction velocity? A)The AV node. B)…

A: Purkinje fibre situated in both ventricle myocardium

Q: Use blue pen and paper. Draw a flow chart of the circulatory system that includes the movement of…

A: Blood is the fluid that courses through the circulatory system in the body of most animals,…

Q: Select the best answer or answers from the choices given: Which of the following can lead to…

A: Human heart is the Center for regulating blood across the body. It is made up of cardiac Muscles…

Q: Predict the pressure changes that occur in the aorta, the left ventricle,and the left atrium after…

A: The heart is a smooth muscle organ that plays a major role in the circulation of blood. Human heart…

Q: are True/False. The louder, sharper, higher-pitched 'dupp' heart sound occurs when tricuspid and…

A: The louder , sharper , higher-pitched 'dupp' heart sound occurs when tricuspid and mitral valve…

Q: The white arrow is pointing to the [Select] According to the vide commonly confused with the v[…

A: The human body is composed of different organ systems. These organ systems perform specific…

Q: In a paragraph or using an arrows, trace the blood flow from the superior vena cava, inferior vena…

A: The heart is the vital organ in the human body located under the ribcage, pumps oxygenated blood to…

Q: area of dead myocardial tissue is called.....

A: The cardiac muscle is especially created of 2 forms of cells: cardiomyocytes and fibroblasts.…

Q: What is the tissue type for the following structures of the heart Fibrous pericardium Serous…

A: The tissue is the group of cells, that have the same function and structure. Different organs…

Q: Determine the ventricular electrical axis in the following recording: Explain your answer

A: The ECG's axis is one of the major direction in which the overall electrical activity of the heart…

Q: The blood vessels responsible for variably distributing cardiac output among organs in the body are:…

A: Animal physiology is the systematic study of the supporting features, roles, and processes of…

Q: Assuming that the cardiac cycle begins at the end of diastole put the following ventricular phases…

A: The correct order of  occurance of Ventricular phase is:- 1)Isovolumetric contraction phase…

Q: Fill in the blank:  The fibers that carry cardiac impulses from the interventricular septum into the…

A: Cardiac impulses originate from the sinoatrial node that causes the contraction of the heart muscles…

Q: Fill in the blank:  An _______________________ is a recording of electrical changes occurring in the…

A: Cardiac cycle : cyclic events of contraction and relaxation that takes place in the heart from…

Q: After his accidents Christopher Reeves heart would stop beating eventually because the breaking of…

A: Answer : False

Q: he names and synonyms for es of the heart.

A: We know that the heart is a muscular pumping organ that pump the originated blood throughout the…

Q: Label the axons, dendrites, and soma of the nerve cell. Then, give a short description of this cell.…

A: Nerve cell/Neuron It is an electrically excitable cell that processes and transmits information by…

Q: The heart's pacemaker is the O a. atrioventricular node O b. bicuspid node O c. sinoatrial node O d.…

A: A cardiac pacemaker is a medical device that sends electrical impulses to the heart muscle chambers…