Why might exercising on a very hot day result in fainting?

Q: What is the difference between angina and MI (myocardial infarction) pain?

A: Myocardial infarction is a serious condition while as an angina is less serious and transient…

Q: What causes heart sounds?

A: BASIC INFORMATION  HEART  It is a muscular organ  It is present in a space in between the lungs…

Q: While standing in the hot sun, Sally begins to feel light-headed and then faints. Explain what…

A: Venous pressure is the pressure of blood inside the venous system. It is usually lower than the…

Q: What do you think are the clinical symptoms indicating that a person requires the surgical…

A: Answer- Mechanical pacemaker is a small device that is used to send electrical symptoms to the…

Q: Why is atherosclerosis a risk factor for thrombotic stroke?

A: Blood is an important body fluid that helps to transport respiratory gases, nutrients, and…

Q: What does it mean for someone to be in decompensated shock?

A: Shock is the condition when a person does not get a sufficient amount of blood flow throughout the…

Q: Does a change in body position from supine to standing cause a change in pulse?

A: The hydrostatic pressure exerted against the walls of blood vessels by blood flow is known as Blood…

Q: The circulatory system, especially the heart, suffers damage if the shock is prolonged? Give reasons…

A: The circulatory system includes the most important organ of the human body,i.e. heart. It consists…

Q: Why when standing up may you feel faint?

A: A temporary loss of consciousness lead to a minimized flow of blood to the brain; a swoon: to make…

Q: What do you mean by atherosclerosis?

A: Cardiovascular diseases refer to the conditions that affect the heart or blood vessels or both. It…

Q: Why is hypertension such a serious problem?

A: KEY WORDS :- Hypertension - It is also called high blood pressure in which reading would be above…

Q: Why is ventricular fibrillation such a serious arrhythmia?

A: The term ‘arrhythmia refers to an abnormal condition of the heart in which the rate and frequency at…

Q: Why would blocking the action of a vasoconstriction lower blood pressure?

A: Circulatory system is a type of body system in which circulation of body fluids occur and…

Q: Why is high blood pressure dangerous?

A: Blood is the fluid connective tissue responsible for transporting oxygen and nutrients to different…

Q: Inadequate cardiac output causes?

A: The amount of blood that is pumped out by heart and circulated in the body to supply oxygen to…

Q: Why would compression of the common carotid arteries cause a person to lose consciousness?

A: Blood to the brain, face, and neck is supplied by a major blood vessel found in the neck called the…

Q: What effect does hypocalcemia have on the contractile force developed by cardiac muscle?

A: Calcium plays an important role in the activity of muscles. It is released in the muscles from the…

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: A classmate who has been standing still for several hours working on a laboratory experiment…

A: Working on long laboratory experiments can result in fainting and this is very common.

Q: Why do heart attacks most commonly occurs in morning time

A: The internal biological clock of the human body is known as the circadian rhythm. It is a sleep-wake…

Q: A deficiency of sodium ions in the blood iscalled-------------------

A: Sodium ions are present in the blood and the body fluids surrounding the cells. This ion helps in…

Q: What could it mean if a pulse were normal on the right limb but absent on the left limb?

A: Following the systolic ejection, the high-pressure wave of blood travelling away from the heart…

Q: Why can acetylcholine cause an increase in stroke volume?

A: During contraction, blood pumped by the one ventricle with the per beat of the heart. It is measured…

Q: Why do the cardiac muscles cells demonstrate autorhythmicity?

A: A type of muscle present in the heart is the cardiac muscle. The muscle aids in the mechanical…

Q: When we state that someone is in decompensated shock, what exactly do we mean by that term?

A: There are three stages of shock:  Compensatory shock or stage I Decompensatyory shock or stage II…

Q: Why does pericarditis develop?

A: Pericarditis  An inflammation & swelling of the delicate, sac-like tissue around the heart…

Q: Shaun, who had been feeling very fatigued for a few days, fainted during a practice session of…

A: Heart is a muscular organ that is responsible to pump blood in the body. The pumping of blood makes…

Q: Can the transport through the capillaries in the right foot be affected by an edema? Explain.

A: When excessive fluid builds up and accumulates in the cells or within tissues or in the interstitial…

Q: class of hypertensive drugs causes hyperkalemia

A: The term hyperkalemia refers to higher level of potassium in the blood of a person than a normal…

Q: Why do endurance athletics use erythropoietin?

A: Erythropoietin (EPO) is a peptide hormone that regulates erythropoiesis. It is produced when the…