What are the Effects of sympathetic nerves and plasma epinephrine on the arterioles in skeletal muscle?

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: Blood flow to the skeletal muscles increases with exercise. Explain how the autonomic nervous system…

A: The functioning of every tissue requires energy which is provided by the generating metabolic energy…

Q: What is hyperemia? How is skeletal muscle tissue able to develop hyperemia?

A: Skeletal muscle is one of the significant muscle types. It is made up of striated muscle tissue and…

Q: What are the causes of Hypertrophic cardiomyopathy?

A: A complex heart disease where the heart muscles get thickened is called as hypertrophic…

Q: How does the SNS control vascular smooth muscle in arterioles?

A: The autonomic nervous system possesses two major divisions, sympathetic and parasympathetic nervous…

Q: Why is it possible for acetylcholine to actually cause an increase in stroke volume, even though…

A: Acetylcholine is one of the most vital neurotransmitter in the human body, that is seen in both the…

Q: Explain how vascular resistance and blood flow are regulated by (a) sympathetic adrenergic fibers,…

A: The heart is a muscular organ that pumps blood through the blood vessels of the circulatory system…

Q: Why does increasing EDV increase contractility?

A: The heart is a muscular organ in most animals, which pumps blood through the blood vessels of the…

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: As blood vessels increase in diameter, the amount of smooth muscle decreases and the amount of…

A: Blood vessels are the components of the circulatory system. They transport blood, nutrients, 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: What are three of the ways in which cardiac muscle differsfrom skeletal muscle?

A: According to human anatomy, the muscular system is differentiated into three distinct types of…

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: If branch A is twice the length of branch B, what is true regarding the resistance in branch A…

A: The Poiseuille's law states that the flow of fluid is related to various factors including length…

Q: What happens to systemic blood pressure when the smooth muscle of muscular atries contract?

A: Blood vessels : Blood capillaries are artery ,vein , capillaries are made by three layers - Tunica…

Q: How does lovastatin reduce the severity of atherosclerosis?

A:

Q: What causes hypotension during a severe allergic response?

A: Allergies also referred to as allergic reactions can be defined as an abnormal condition of the body…

Q: Draw a pair of curves relating end-diastolic volume and strokevolume, with and without sympathetic…

A: The EDV represents the filled volume of the ventricle prior to contraction, and the ESV represents…

Q: how calcium stored in the cardiomyocyte SR?

A: Cardiomyocytes are specialized muscle cells that make up the majority of the tissue in the heart.…

Q: heart failure is unable to climb a flight of stairs without experiencing dyspnea.

A: Digoxin is a type of cardiac glycoside medication used in the treatment and management of heart…

Q: What effects do epinephrine and norepinephrine have on peripheral resistance and blood pressure?

A: Epinephrine and nor epinephrine are similar Chemicals that act as both neurotransmitters in the body…

Q: How does the muscular system needs the circulatory system to function? What will happen to the…

A: An ideal way to keep both circulatory and muscular frameworks sound is to get ordinary aerobic…

Q: What are the two functional importances of the intercalated discs of cardiac muscle?

A: The intercalated discs are a specific feature of cardiac muscle fiber where it supports synchronized…

Q: Mrs B had a heart transplant and as a result, she no longer has nerve supply to her heart. Keeping…

A: The heart transplant, or a cardiac transplant, is a careful transfer system performed on patients…

Q: Why, in physiological terms, does systolic blood pressure increase from rest to exercise and why…

A: Introduction: Metabolic requirements of the body at rest or during exercise are met by supplying…

Q: During strenuous exercise, which of the following changes most infuences total peripheral…

A: Introduction: According to the American Heart AssociationTrusted Source, you must exert yourself at…

Q: what is the relationship between heart rate ( arrhythmia and potassium level .and what is the…

A: Hyperkalemia is a higher than normal level of potassium in the blood. Although mild cases may not…

Q: What effect does an increase or a decrease inextracellular potassium, calcium, and sodium ions have…

A: Introduction: The blood comprises blood cells, namely red blood cells, white blood cells, platelets,…

Q: what is the relationship between heart rate (arrhythmia and potassium level .and what is the…

A: Arryhthmia is a condition which involves irregularities in heartbeat.In this condition,heart of a…

Q: What is the mechanism of myogenic autoregulation? Where does this take place? How will this affect…

A: The system which helps to pump blood from heart to lungs to get oxygen is known as cardiovascular…

Q: Activation of β2-adrenergic receptors in vascular smooth muscle stimulates vasodilation /…

A: Adrenergic receptors are a class of G protein-coupled receptors that are responsible for mediating…

Q: At rest, the cardiac muscle is what?

A: Introduction:- The heart muscle (also called the heart muscle or myocardium) is one of the three…

Q: For cardiac muscle action potentials, describe ionmovement during the depolarization, early…

A: The cardiac muscles or cardiac myocytes contract and relax more than 100,000 times a day without…

Q: Cells of the sinoatrial node are the primary pacemakers of the heart. If we increase the potassium…

A: Pacemaker cells of the heart functions to produce electrical impulses in the heart, which helps in…

Q: Epinephrine is released during vigorous exercise. How would epinephrine cause vasoconstriction in…

A: Epinephrine is a hormone which is secreted from the adrenal medulla gland as a fight or flight…

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.