The heart would develop normally; the ECM composition does not affect cardiomyocyte differentiation or contraction The ECM surrounding these cardiomyocytes would become more rigid, allowing for less contractility The cardiomyocytes would no longer contract The developing cardiomyocytes would differentiate into contractile cardiomyocytes instead of pacemaker cardiomyocytes The cardiomyocytes would form a squamous epithelial layer

Q: Generates electrical impulse that sets rhythm to the heart; the primary pacemaker of the heart. SA…

A: Heart has conductive system which generates and transfer the electrical impulses.

Q: Which of the following rows correctly identifies the movement of solutes on the arterial end and…

A: Net filtration pressure of the blood at the arterial end than at the venous end so blood leaves the…

Q: Jnlike SA node cardiocytes, regular cardiocytes have a resting membrane potential that is . Regular…

A: There are different systems in the human body that perform various physiological processes. All…

Q: Heart Anatomy The human heart has _# chambers. The top chambers TYPE are called and the bottom are…

A: To answer the blanks that are missed. The paragraph talks about heart anatomy.

Q: Leaky Na+ channels in the cells of the SA Node do which of the following?   a-allow a slow…

A: d-allow a slow depolarization that eventually reaches the threshold for voltage-gated Ca2+ channels.

Q: Which of the following statements is correct? Group of answer choices Veins carry blood away from…

A: Veins  Veins are blood vessels that carry blood towards the heart. Stenotic heart valve Valve that…

Q: When Ca2+ is released from troponin in the sarcomere, what is happening at the level of the heart?…

A: Calcium plays a vital role in muscle contraction. It interacts with protein actin and myosin. The…

Q: The following are cardiac cycle events. Place them the correct order, beginning with ventricular…

A: Introduction: The sequence of alterations in the flow and pressure in the cardiac chambers and the…

Q: leukocytes

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Q: The pressure in the veins sufficiently high to drive the flow of blood into the heart is callec O…

A: The heart is a fist-sized organ that pumps the blood throughout the body. It is the primary organ of…

Q: True or false Blood pressure is a product of cardiac output and resistance. Blood pressure is…

A: Blood pressure is the pressure exerted by the flow of blood through the walls of the arteries. Blood…

Q: Contractile cardiac myocytes use calcium influx across the plasma membrane for all of the following…

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

Q: constriction of a blood vessel to one-half of its resting diameter would increase its resistance to…

A: The answer is 16.

Q: the skeleton of heart is composed of * O prominent loose connective tissue prominent loose regular…

A: Heart is a chief pumping structure in the circulatory system which composed of cardiac muscles . It…

Q: Upload a drawing that shows the path of blood as a single circuit (like a loop) from the left…

A: Heart is the important organ of cardio vascular system. It pumps the blood as a result every organs…

Q: Name the cell What hormone stimulates their production

A: Blood tissue is made up of different cells and liquid component like RBC, WBC, platelets and plasma.…

Q: effect of exercise on cardiopulmonary function

A: The effects of exercise on cardiopulmonary function: Exercise places a far greater strain on the…

Q: Which of the following is not correct regarding the heart? ventricular fibrillation occurs from…

A: Heart is the major organ of the cardiovascular system. It is the mesodermally derived organ and it…

Q: Which type of capillary would allow proteins to pass through the gaps between the endothelial cells?…

A: The smallest blood vessels are referred to as capillaries. The primary function of capillaries is to…

Q: An ECG wave is the electrical signal caused by an action potential in a cardiomyocyte.

A: An ECG is utilized for measuring the rate and rhythm of heartbeats, the size, and position of the…

Q: What do large veins have in common with lymphatics?

A: Blood vessels carry oxygen and nutrients and deliver to all the cells in the body, but lymphatic…

Q: Heart beat/rate is controlled by these groups of cells on the heart. a-SA node b-AV node c-nerve…

A: Heart rate is the speed of the heartbeat measured by the number of contractions of the heart per…

Q: lar systole begins ventricular relaxation

A: Cardiac cycle : It is the sequence of events that occur from beginning of one heartbeat to the…

Q: hich of the following is true for the ejection phase of the cardiac cycle  select all that apply…

A: The ejection phase of the cardiac cycle begins when the intraventricular pressure exceeds the…

Q: In contrast to arteries, veins: O have higher pressure O are surrounded by smooth muscle O have…

A: Blood vessels are the passageway  which allows the blood to pass. Blood vessels comprises of :-  A )…

Q: Which of the following is not true of veins Group of answer choices have a thin tunica media have a…

A: Veins are blood vessels that carry blood towards the heart. Unlike arteries, which carry oxygen-rich…

Q: #06#

A: We can say that Cardiac tissue consists of muscles that help in the contraction of the heart. They…

Q: Which organs or tissues get a lot of blood flow as exercise is happening? Skeletal muscles Skin…

A: The distribution of blood flow during exercise is a complex and highly regulated process. It's…

Q: . The right side of the heart pumps receives blood from the systemic circulation and sends it to i…

A: A network of blood vessels are involved in circulating blood to all the parts of the body. The heart…

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: Which of the following are pacemakers of the heart? Choose all that apply. AV node SA node Cardiac…

A: Pacemakers- Electrical impulses generated by the heart muscle that causes the heart to beat…

Q: Why is it important that arteries and veins are lined with muscle tissue? so blood can diffuse out…

A: Arteries are blood vessels that carry oxygen-rich blood from the heart to the tissues and organs.…

Q: Intercalated discs desmosomes Cardiocytes are connected by structures ca to plasma membranes and…

A: The cells responsible for generation of contractile forces inside the intact heart are called as…

Q: These These blood vessels are the [ Select ] arteries and the coronary

A: The arteries, arterioles, veins, venules and capillaries are the blood vessels forming the…

Q: correct statement about gap junctions:

A: The cardiac muscle tissue forms the walls of the chambers of the heart. Intercalated discs are…

Q: Why does blood keep flowing through the vascular system even during diastole? Valves in veins…

A: Blood is a circulating biological fluid that contains plasma and blood cells. Erythrocytes (red…

Q: The cardiac action potential is substantially longer than a neuron potential due to: spontaneous…

A: Cardiovascular activity is a short-term change in electrical activity in the lining of the heart…

Q: Why is nitroglycerin given as a treatment for myocardial infarction? What does it do? Nitroglycerin…

A: Myocardial infection or heart attack is a blockage of blood flow to the heart muscle. It occurs when…

Q: Describe the movement in ions in action potentials of these cells - pacemaker cell - cardiac…

A: Series of changes in various ion concentration such as calcium, sodium and potassium ions that…

Q: As we auscultate the heart it is imperative, we understand what part of the heart we are listening…

A: As we auscultate the heart, it is important to understand which part of the heart we are listening…

Q: The fibrous skeleton of the heart functions to:

A: The fibrous skeleton of the heart, also called the cardiac skeleton, is made up of dense connective…

Q: Which one of these is a characteristic of intercalated disks? They connect cardiac muscle cells end…

A: Intercalated disks are specialized structures found in cardiac muscle tissue, facilitating the…