People with allergies frequently take antihistamines and decongestants to relieve their symptoms. (These medica- tions mimic the effects of sympathetic stimulation.) The medications’ labels warn that such medications should not be taken by individuals being treated for high blood pressure. Why?

Q: Following a large increase in sympathetic output from the vasomotor center, what tissues will get…

A: The sympathetic nervous system consists of the vasomotor center which is a part of the medulla…

Q: Fill in the blank:  Endings of parasympathetic nerve fibers secrete _______________________, which…

A: The cardiovascular system is responsible for circulating the blood throughout the body so that…

Q: Why do both ventricles have to have the same volume?

A: The term stroke volume will apply to every of the 2 ventricles of the center, though it always…

Q: Some people have abnormal cords or bridges of myocardium that extend from atrium to ventricle,…

A: The second most common type of coronary arterial abnormality is the Myocardial bridge. It is the…

Q: A blockage in the right internal carotid does not necessarily cause a loss of blood supply to the…

A: The carotid arteries are important blood vessels of the neck that deliver the face, neck, and brain…

Q: Identify the function of the Purkinje fibres. Select one: O a. O b. O c. O d. act as a pacemaker and…

A: The conducting system of heart consists of SA node, AV node, Right and left AV bundles, purkinje…

Q: Fill in the blank:  Baroreceptors (pressoreceptors) located in the walls of the aorta and carotid…

A: Homeostasis is the process by which the different physiological systems of the body coordinate to…

Q: How does the body try to compensate for insufficient cardiac output during shock states?

A: Cardiac output refers to the blood that the heart pumps through both left and right ventricle in a…

Q: When a person is very stressed and tense, his or her blood pressure typically rises. What aspect of…

A: The autonomic nervous system consists of two divisions known as sympathetic and parasympathetic…

Q: Why would a wide pulse pressure be logical to give a patient with the condition aortic…

A: Aortic regurgitation is referred aortic valves that fails to close completely and there is the…

Q: The isovolumetric contraction in ventricles appears:

A: Isovolumetric contraction in general means that although contraction takes place in the ventricles,…

Q: Trace one possible path of a red blood cell from the leftventricle to the toes.

A: The pumping action of the heart circulates blood throughout the body. Arteries are blood vessels…

Q: How would “hardening of the arteries” (arteriosclerosis) affect blood pressure? Why?

A: Introduction: Atherosclerosis and arteriosclerosis are often used interchangeably. They both refer…

Q: The center involved in controlling the cardiovascular system is found in the thalamus. O cerebral…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: A patient is taking a drug that blocks beta-adrenergic receptors. What changes in cardiac function…

A: A drug is a chemical substance that produces a biological effect. When the drug is taken by…

Q: Imagine that you are feeling very anxious as you walk to the podium to deliver a speech. If your…

A: Ans: Cardiac output: The cardiac out put is the amount of blood pumped by heart to different organs…

Q: What effects do the sympathetic and parasympathetic nervous systems have on blood pressure?

A: The nervous system is one of the vital systems of a body. It is a system of nerves which carry…

Q: You have to stand in front of the class to give a report. You are nervous, and your heart is…

A: The Electrocardiogram (ECG) is a record of the myocardial electric changes. It is a graphical…

Q: Explain how the baroreceptor reflex helps to compensate for a fall in blood pressure. Why will a…

A: The baroreceptor reflex, propitiated by the autonomic nervous system (ANS) joining the heart and…

Q: What is the action of Sympathetic division (arousing) on heart beat functioning when a crisis…

A: Nervous System -- Structurally the nervous system is divided in to two parts ( i ) Central Nervous…

Q: If an embolus formed in the left ventricle, it would pass through:

A: The risk of left ventricular thrombus formation is highest during the first 3 months of acute…

Q: Following a concussion, we see a large influx of:

A: A concussion is very severe disease. It one type of head injury which is temporarily affects brain…

Q: A man was rushed to the ER when he complained of a constant pain down his left shoulder. The…

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

Q: The cardiovascular centers are located in which area ofthe brain?a. medulla oblongatab. ponsc.…

A: Brain is an organ which is responsible for control and coordination of the body. The brain is…

Q: People with allergies frequently take antihistamines and decongestants to relieve their symptoms.…

A: Allergy is defined as a type of reaction that is caused due to the immune system response against…

Q: Sympathetic stimulation of blood vessels maintains a state of partial vasoconstriction called _____.

A: Vasomotor tone.

Q: PREDICT THE EFFECTS OF A DRUG THAT BLOCKS THE SYMPATHETIC NERVOUS SYSTEM ON BLOOD PRESSURE AND HEART…

A: Sympathetic nervous system regulates many homeostatic mechanisms and are well known for…

Q: The maintenance of an uninterrupted delivery of oxygen and glucose to the brain is essential to its…

A: Oxygen Concentration in the BrainWhile there is significant evidence to support enhanced neuronal…

Q: In response to a severe hemorrhage, blood pressure lowers, the heart rate increases dramatically,…

A: The human body is made of different organ systems. Each of them is involved in maintaining the…

Q: a blood clot forms in the leg, then breaks free as an embolus. Is it more likely to become stuck in…

A: A blood clot that breaks of is referred to as an embolus. This embolus can be of different types…

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: Explain why the walls of the atria are thinner than those of the ventricles, and why the wall of the…

A: The walls of Artria are thinner than Ventricle because the artria are only receiving chambers…

Q: 1.2 Compare the wall thickness of the right and left ventricles. Which is thicker? Why?

A: A double circulatory system is the one which comprises of two distinct circuits of blood circulation…

Q: When the sympathetic division detects a decrease in blood pressure, will it engage in a positive or…

A: The positive feedback loop in the body occurs when a product produced influences the initiator…

Q: arrhythmia would result from damage to the atrioventricular node

A: The atrioventricular (AV) node is an important region of the electrical system of the heart which…

Q: what are the layers of blood vessels! Differentiate between arteries, vein and capillaries. Describe…

A: Blood vessels are the long pipe-like structure that helps in the circulation of blood throughout the…

Q: WHICH PART OF AUTONOMOUS NERVOUS SYSTEM INCREASES VASOCONSTRICTION? HOW DOES THAT CHANGE PERIPHEERAL…

A: The autonomous nervous system is a part of peripheral nervous system, which influences the function…

Q: A 60 year-old patient HA, who was bedridden for a few days, feels dizzy and experiences significant…

A: Homeostasis is the process by which the internal setpoints are maintained. The homeostatic…

Q: A 60 year-old patient HA, who was bedridden for a few days, feels dizzy and experiences significant…

A: In the given question standing up from lying position in the bedridden geriatric patient results in…

Q: A disturbance in the flow of blood to the brain is a

A: Central nervous system consists of brain and spinal cord. It controls the activity of body.

Q: Fill in the blank:  Endings of sympathetic nerve fibers secrete _______________________, which…

A: Nervous system coordinates and controls the activities of the animals such as perceptions, behaviors…

Q: Vern, suffering from cardiac arrhythmias, is brought into the emergency room of a hospital. The…

A: R-R interval or space between 2 R wave in the ECG helps to determine the heart rate. As RR interval…

Q: As the patient’s blood pressure decreased from the loss of blood, neural impulses transmitted from…

A: Blood is a body fluid in humans and other animals. It delivers necessary substances such as oxygen…

Q: Capillaries within the brain have tight junctions, whereas capillaries within theanterior pituitary…

A: The brain is a three-pound organ that regulates all bodily processes, analyses input from the…

Q: A 60 year-old patient HA, who was bedridden for a few days, feels dizzy and experiences significant…

A: These vascular changes serve two purposes: (1) to efficiently distribute cardiac production among…

Q: Name the blood vessels that leaves right ventricle.

A: The pump for the circulatory system is the human heart, and it is considered to be an organ of the…

Q: Low pH, if detected in the aortic arch, will cause the medulla oblongata to activate the

A: Sympathetic nervous system and parasympathetic nervous system are division of autonomic nervous…

Q: A person’s mean arterial pressure has decreased below normal. As a result of this, the person…

A: The cardiac cycle contains two phases, the systole, and the diastole. In the systole phase blood is…

Q: When you have a blockage of blood flow to the heart, it will likely result in what...?

A: Heart block is an abnormal heart rhythm where the heart beats too slowly,which results in the…

Immune Disorders

The collaboration between the cells and proteins that work together as a defense system against infection comprises the immune system.Each of them performs a variety of tasks to recognize and/or react against a foreign body.