Compare the characteristics of skeletal and cardiacmuscle cell contractions.

Q: Sketch the distribution of shear stress across the diameter of e blood vessel

A: Shear stress is fundamentally the tangential power of streaming blood on the vein surface. (this…

Q: Explain why an incompetent valve reduces the efficiencyof the heart contraction.

A: The organ of the mesodermal origin-the heart is primarily accountable for blood pumping. Repeated…

Q: What happens to the heart rate and cardiac output during exercise?

A: Heart rate and cardiac output are two key indicators of cardiovascular health. Heart rate, or the…

Q: Describe the process of Excitation–contraction coupling in cardiac muscle?

A: Excitation contraction is a process through which an action potential (electric stimulus) from the…

Q: What initiates action potentials in cardiac muscle?

A: Generation of action potential activates the neuron during the generation of stimuli. It is studied…

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: 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: Describe the pacemaker potential and the myocardial action potential, and explain how the latter…

A: Heart is the major pumping organ in our circulatory system. It has two types of cells namely;…

Q: Describe the histology of cardiac muscle tissue, and differentiate ?it from that of skeletal muscle?

A: BASIC INFORMATION  MUSCLE It is a type of soft tissue which are found in most of the animals. The…

Q: Discuss how the SA and AV nodes control the contractionsof the heart muscle, as well as how these…

A: A network of specialized muscle cells is present in the walls of the heart. These muscle cells are…

Q: Why do the cardiac muscles cells demonstrateautorhythmicity?

A: Autorhythmicity is a property of specialized cardiac cells called pace maker cells that directly…

Q: Understand the contribution of heart rate, stroke volume, and the a-v̄O2 difference in determining…

A: The ‘V’ (there is usually a dot above the V. It indicates per unit of time) stands for the volume,…

Q: State some unique features of cardiac muscles.

A: Muscle is a soft tissue found in most animals. Muscles function to produce force and motion. There…

Q: Describe the process of Contraction Coupling in the Cardiac Muscle?

A: Answer: Introduction: Cardiac muscle, comprised of the contractile cells of the heart, contain a…

Q: Describe the properties of the cardiac muscle, including automaticity, excitability, conductivity,…

A: Cardiac muscle or heart muscle is also known as myocardium. It is one of the three kinds of…

Q: Explain how the target heart rate (THR) helps adjust exercise intensity in times of high heat,…

A: The number of beats per minute is called, "heart rate." In a healthy adult, the normal heart rate is…

Q: Compare the structure and function of arteries and veins, and the significance of the skeletal…

A: The heart is the organ which plays an important role in the transport of blood and nutrients.the…

Q: Why is a high resting BP considered a risk for exercise testing? Based on your knowledge of BP…

A: The force of the blood rushing against the walls of the arteries is known as blood pressure. When…

Q: Compare the effects of hypocalcemia on cardiac andskeletal muscle and explain the rationale for…

A: Muscles are involved in the voluntary and involuntary movements happening in the human body. Muscles…

Q: Explain the intercellular structures of cardiac muscle.

A: Heart is a muscular organ that pumps blood throughout the circulatory system. It is situated between…

Q: Why is the plateau phase so critical to cardiac musclefunction?

A: The heart is a hollow muscular organ. It pumps the blood through the blood vessels of the…

Q: Compare and contrast the action potential of a myocardial conductive cell and the action potential…

A: Myocardial conductive cell: [action potential] The conductive cells within the heart establish the…

Q: Describe the structure of intercalated discs in cardiac musclecells, and briefly discuss their…

A: Cardiac muscle tissues are tissues of the heart and help to provide strength and flexibility from…

Q: define Cardiac muscle,

A: Muscle is a soft tissue which is found in most animals. The tissues comprise muscle fibre called…

Q: a. When part of the heart muscle dies, how does itheal?b. How would the new tissue affect the…

A: The heart is a vital organ for survival, as it pumps blood throughout the body. The heart is made up…

Q: The contracting cells of the heart are a type of striated muscle that is said to work as a…

A: Functional syncytium is a group of cells that acts or works as a single unit while keeping the…

Q: Identify at least one effect of aging on physiological function of the cardiovascular system,…

A: With ageing in all organ systems, physiological changes occur. Cardiac production decreases, blood…

Q: Discuss the importance of smooth muscle cells present in the aorta and all arteries.

A: Smooth muscle is employed in vessels to control blood pressure and flow in the cardiovascular…

Q: Where are cardiac muscle cells found in the heart? O myocardium O pericardium O endocardium O great…

A: The heart is the main organ of the circulatory system of the body. It is located behind the…

Q: explain the regulation of cardiovascular adjustments to exercise

A: In the body, the blood is circulated by the action of the cardiovascular system. It is by this…

Q: Discuss that Can cardiac muscle exhibits (normally or under experimental conditions) summation or…

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

Q: What features distinguish myocardial cells from skeletal cells?

A: Cells are the basic structural and functional unit of a living organism.  Myocardial cells are the…

Q: Differentiate apical thrill, systolic thrill and diastolic thrill.

A: This are heart sounds heard by Auscultating and this can heard in different situations.

Q: What are three anatomic or physiologic differences between skeletal muscle and cardiac muscle?

A: The biological level of the organization is a hierarchy in which the living thing and structures are…

Q: During heavy exercise, how much cardiac output may increase?

A: Cardiac output is the amount of blood pumped by the heart into the aorta in one minute. Heart beats…

Q: Other than heart rate what are two other variables that increase with exercise and why do they…

A: Answer: HEART RATE : It is defined as the heart beat per minute. The normal range of adult heart…

Q: EMG activity (mV-sec) vs. Spacer Size (mm)

A: Muscles are triggered by impulses from nerve cells (motor neurons), which generate electrical…

Q: Define a cardiac cycle and the cardiac output.

A: Cardiac system or in clinical terms , the cardiovascular system is defined by the entire organ…

Q: Explain the mechanism of the contractions of the heart and how it is regulated?

A: The heart is a muscular organ that is divided into four chambers: Left auricle (LA), right auricle…