Unlike skeletal muscle, cardiac muscle doesn’t undergo tetany. Explain how this is achieved and why is this necessary?

Q: In what ways are autorhythmic fibers similar to and diff erent from contractile fibers?

A: Heart is a four chambered cardiovascular organ pumping blood throughout the body. The auricles and…

Q: Define peripheral resistance (PR)

A: Peripheral resistance can be defined as the opposing force applied by the arteries on the blood…

Q: condi

A: Cardiac muscles can be defined as the group of involuntary muscles present in the heart. These…

Q: Explain the structure of cardiac muscle and how it helps produce coordinated contraction in each…

A: Cardiomyocytes or cardiac muscle cells form a highly branched cellular network in the heart. They…

Q: Explain the HMP shunt pathway and its significance

A: The HMP pathway is a metabolic pathway same as glycolysis. It is used for the generation of 5 carbon…

Q: Describe how the autonomic release of noradrenaline onto vascular smooth muscle cells that…

A: The autonomic nervous system releases noradrenaline (also known as norepinephrine) into vascular…

Q: Explain the events of excitation-contraction coupling.

A: Excitation-contraction coupling (ECC) is a mechanism that connects the plasma membrane stimulation…

Q: Describe the types and significance of intercellular junctions between cardiac muscle cell?

A: Cardiac muscle helps to contract the heart. There are 3 types of intercellular junction between the…

Q: what is contraction in cardiac muscle cells in response to

A: Muscle cells are the cells also known as myocytes that help in the formation of muscle tissues. The…

Q: Explain in detail why the neurotransmitter acetylcholine has different effects in skeletal vs.…

A: Acetylcholine lie outside the CNS which transmits synapsis and at synapse, there are released some…

Q: Describe the structural and functional properties of cardiac muscle, and explain how it differs from…

A: Muscle is a soft tissue like structure which is primarily responsible for the movement in the body.…

Q: Using the new cardiovascular drug Entresto, relate how the Cardiac action potential arriving at the…

A: Entresto is a brand-name prescription drug for treating specific forms of heart failure. Heart…

Q: Rigor mortis is usually complete within 1 to 2 days after death (depending onenvironmental…

A: Introduction: When muscle fibers are completely depleted of adenosine triphosphate (ATP) and…

Q: What are the basic structural features of cardiac muscle cells?

A: Cardiac muscle cells, also known are cardiomyocytes form a branched structure in the heart. The…

Q: Compare and contrast the contractile mechanisms and the means of activation of skeletal and smooth…

A: Skeletal muscle  Skeletal muscles are attached to bones. These are long, cylindrical, striated…

Q: Describe the events by which depolarization of a smooth muscle cell results in contraction and…

A: Smooth muscle is a kind of muscle that is used by various systems to apply pressure on organs and…

Q: Draw a labeled cardiac muscle action potential.

A: Introduction: A cardiac muscle action potential is a brief change in voltage across the cell…

Q: How does the excitation-contraction coupling in skeletal muscles and in cardiac muscles differ?

A: Introduction: The excitation/ depolarization of the muscle fiber results in developing action…

Q: Why can we say that cardiac muscle contraction is graded?

A: Cardiac muscle contraction refers to the contraction occurring within the cardiac muscles of the…

Q: Draw a ventricular muscle cell action potential.

A: The heart is a four chambered structure that is responsible for pumping the blood into the arteries…

Q: You are supervising a student who is carrying out several experiments on an animal species that has…

A: Based on the description of the graph, the student has recorded the action potential and contraction…

Q: Explain why a patient with congestive heart failure may have difficulty in generating enough muscle…

A: The cardiovascular system in the human body functions to circulate the blood in the body. It is also…

Q: What effect does a pacemaker potential have on a smooth musclecell?

A: In human physiology, pacemaker potential can be described as the positive increase in voltage in the…

Q: List the steps of a cardiac muscle cell CONTRACTION. Compare this to a skeletal muscle cell…

A: Muscle cell contraction is a complex physiological process that enables muscles to generate force…

Q: How does excitation–contraction coupling in cardiac muscle resemble that of skeletal muscle? How is…

A: The calcium ions channels present in the plasma film are momentarily opened because of the…

Q: What does it mean when we say cardiac muscle contraction is a graded contraction?

A: Contractions of the heart (heartbeats) are controlled by specialized cardiac muscle cells.

Q: What changes can be expected in the case of muscle tissue atrophy and hypertrophy?

A: INTRODUCTION Muscle tissue atrophy Muscular atrophy occur due to type absence of physical work or it…

Q: Why do the cardiac muscle cells demonstrate a UTORHYTHMICITY

A: Cardiac muscle cells are short in dimension when compared to the skeletal muscles with small…

Q: Compare the structural and functional characteristics ofcardiac muscle with those of skeletal…

A: Cardiac muscle:a. It is found only in the heart.b. It appears long and rod-shaped cells,…

Q: Discuss in details the unique structure  of  a  cardiac muscle  fiber

A: The heart is a smooth muscle organ that pumps blood throughout the body. Oxygenated blood collected…