Calcium channel blockers, a type of anti-hypertensive drug, block the entry of calcium into smooth muscle which causes smooth muscle to relax. Explain how this decreases blood pressure. Explain why cutting an arterial vessel will cause a greater loss of blood over the same amount of time than cutting a venous vessel.

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: stroke volume, end systolic volume, end diastolic volume, resistance, venous return, mean arterial…

A: Cardiac output is the volume of blood being pumped by the heart, by the left and right ventricle,…

Q: Explain why the differences in the amount of elastic fibers and smooth muscle fibers in the tunica…

A: The arteries are the blood vessels that carry oxygenated blood from the heart to all the parts of…

Q: Discuss how contraction and relaxation of arteriolar vascular smooth muscle regulates peripheral…

A: Arteriolar smooth muscles are involuntary muscles that are present in the arterioles. Their main…

Q: In response to a drop in blood pressure, there is a decrease in parasympathetic nervous system…

A: The organs and glands are controlled by the autonomic nervous system (ANS). The ANS is further…

Q: The four-chambered heart is a single organ but is sometimes described as a “double pump” because it…

A: The cardiovascular system is composed of the heart, blood, and blood vessels. The heart pumps blood…

Q: Let’s say an arteriole dilates to 50% greater than its original size (i.e., the new radius of the…

A: Arterioles are the smallest tubes of arterial system. Their walls are relatively rich in smooth…

Q: compare and contrast the difference between, right, left, and biventricular heart failure. Explain…

A: Heart failure occurs when the body is unable to pump enough blood to supply the required nutrients…

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: The ANS regulation of blood pressure is involuntary, yet biofeedback techniques enable individuals…

A: ANS stands for the autonomic nervous system. ANS regulates the function of internal organs.

Q: Another disease slows the rate of production of cAMP in both contractile and pacemaker cardiac…

A: There are three different kinds of muscle tissues in vertebrates: skeletal muscle, smooth muscle,…

Q: splanchnic, cutaneous, and skeletal muscle vascular beds during sustained exercise (distance

A: The amount of blood pumped by the left ventricle in a minute is called as the cardiac output. It's…

Q: What terms are used to describe the process of increasing or decreasing the diameter (lumen) of…

A: Blood vessels are the channel like paths that carry blood throughout the body and our body contains…

Q: how two different heart muscle diseases (dilated cardiomyopathy and hypertrophic cardiomyopathy) can…

A:

Q: The greater the pulse pressure, the lower the pressure gradient driving blood from the aorta through…

A: Pulse pressure is a measure of the difference between diastolic pressure and systolic pressure. As…

Q: raw a ventricular muscle cell action potential in the figure below. Briefly describe the changes in…

A: Similar to skeletal muscle, the resting membrane potential of ventricular cells, is around -90…

Q: In the initial stages of ventricular fibrillation (during which the heart produces no functional…

A: The heart is the pumping organ that is responsible for circulating the blood to different parts of…

Q: Describe the relationship between blood pressure and the total cross-sectional area of arteries,…

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

Q: While downhill skiing, Jerry lost control and appeared to hit into a tree, chest first. The ski…

A: CYANOSIS- It is a blue colouration of skin and mucous due to insuffecient oxygen and more carbon di…

Q: If all plasma membrane Ca21 channels in contractile cardiac muscle cells were blocked with a drug,…

A: A heart muscle cell is similar to a large house with several doors and rooms. Ion channels are…

Q: In a healthy person, where is blood pressure greater: at the aorta or at the inferior vena cava?…

A: The circulation of oxygenated blood starts from the aorta (the primary artery carrying oxygenated…

Q: Identify and describe the structure shown in the figure below. What role does this structure…

A: Muscular system is one of body system which provide movement to body by regular contraction as well…

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: Contrast the function of capillaries in the skin with thefunction of capillaries in muscle tissue.

A: The capillaries that are located in the skin are responsible for thermoregulation. They control how…

Q: Aspirin is cardioprotective for its anti-thrombotic properties, which means that it prevents…

A: INTRODUCTION: Aspirin is an anti-thrombotic drug, means it prevents the coagulation or clot…

Q: When you are cold, your blood vessels contract. However, your heart rate and blood pressure…

A: When the temperature increases or decreases beyond the set point of the body there is a…

Q: The entry of calcium into a ventricular muscle cell helps to maintain depolarization of the membrane…

A: A well-working conduction system generates a depolarization wave, which causes the atria and…

Q: Blood pressure is a measure of the pressure placed upon the walls of the arteries. There are two…

A: The blood pressure usually refers to the pressure in the large arteries of the systemic circulation.…

Q: An individual presents with cardiac tamponade.  Their heart would be the most efficient in pumping…

A: cardiac tamponade is a medical condition where there is build up of fuilds in the pericardial sacs.…

Q: Describe blood flow during the heart cycle, then explain why the blood moves between atria and…

A: The heart cycle or the cardiac cycle consists of systole (contraction) and diastole (relaxation) of…

Q: Describe blood flow through the heat. Begin at the superior and inferior vena cava and end at the…

A: The circulatory system is one of the major systems of the human body. The circulatory system…

Q: Describe some consequences of the loss of elasticity in the conducting arteries, as occurs in…

A: The blood vessels that transmit oxygen-rich blood from the heart to the tissues of the body are…

Q: In patients with congestive heart failure, heart muscles are damaged and weakened (cardiac muscle…

A: Congestive Heart failure refers to the inability of heart to pump blood effectively so as to fulfill…

Q: Ms. Smith jogs every morning to keep a healthy head (brain), heart, hands, and whole body.…

A: Jogging is a kind of physical exercise that keeps your head brain and heart healthy. It makes your…

Q: A type of aneurysm in which blood leaks between layers of the vessel wall, tearing them apart, is…

A: An abnormal bulge arising in the walls of blood vessels is called an aneurysm. It can be of several…

Q: Doctors strongly recommend that travelers on long airline flights stretch their legs or stand up and…

A: Formation of blood clots/thrombosis in a deep vein of the body, especially in the legs results in…

Q: You’re monitoring a patient who just had bypass surgery to get around a blockage in the femoral…

A: The femoral artery is one of the major arteries that circulates blood to the lower extremities, and…

Q: Explain what is the relationship between flow rate, the difference in blood pressure between the two…

A: As we know, the higher the pressing factor applied by the heart, the quicker blood will stream.…

Q: Explain why an overweight individual with high blood pressure is advised to lose weight. Include in…

A: Blood is a connective tissue that flows throughout the body via a closed system of blood vessels…